Edge Estimates

Operator using a remote-controlled hydraulic breaker to demolish a concrete slab beside a building
Demolition Estimating

Demolition Estimating Services

Edge Estimates prepares demolition takeoffs and cost estimates for contractors bidding demolition work anywhere in the United States. Send the demo plans, the architectural set and whatever existing-condition information you have. You get back measured quantities, priced labor and equipment, a debris and disposal build-up, and marked-up drawings showing exactly what was counted and where.

Structural, selective, interior, concrete, asphalt and site demolition. Fixed fee quoted before any work starts — typically within about two hours during business hours.

Estimating since2016
CoverageAll 50 States
Standard delivery24–72 Hours
Fee quote~2 Hours
OfficesLos Angeles · Dallas
The Basics

What Is Demolition Estimating?

Direct answer

Demolition estimating is the process of measuring everything that has to be removed from a structure or site, identifying what each element is made of, and calculating the labor, equipment, debris, hauling and disposal required to remove it. The output is a priced estimate a contractor can bid from, with quantities, unit costs, assumptions and exclusions documented.

Demolition runs backwards from the way most trades are estimated. In new construction you measure what will be built from a drawing that describes it precisely. In demolition you measure what already exists, usually from a drawing that describes it badly. A demo plan is frequently one sheet of hatch and a general note reading "remove all items indicated and all items required to complete the work" — which puts the burden of defining scope on the estimator.

That is why demolition cannot be priced by equipment hours alone. An excavator day rate tells you nothing about how many days. The days come out of the quantity of material, its type, how it is reinforced, how the machine can reach it, and how fast debris can leave the site.

A demolition estimate also has to state what it does not include. Regulated materials, permits, utility disconnects and temporary protection are frequently split between parties, and an estimate that leaves them silent is not finished.

Excavator arm pulling apart masonry walls with broken debris piled around the tracks
What the estimator is measuring is not on a drawing — it is the structure that already exists, element by element and material by material.

Demolition Takeoff vs Demolition Estimate

Direct answer

A demolition takeoff is the measured quantity of everything to be removed, in square feet, linear feet, cubic yards and counts. A demolition estimate takes those quantities and applies labor productivity, equipment requirements, debris conversion, hauling and disposal to produce priced totals. The takeoff is the measurement; the estimate is the money.

 Demolition TakeoffDemolition Estimate
Main purposeEstablish what is there and how much of itEstablish what it costs to remove
OutputQuantity schedule plus marked-up drawingsPriced workbook with totals by scope
QuantitiesMeasured in place, by element and materialCarried through from the takeoff
Labor and equipmentNot includedCrew hours, machine class, duration, mobilization
DebrisIn-place volume onlySwelled to loose volume, converted to tons
DisposalNot includedHauling, tipping, recycling credits where applicable
PricingNoneUnit costs applied to every line

Contractors with an in-house estimator often order takeoff only, because measurement is the slow part and they prefer their own crews and rates. Contractors without one order the full estimate. Both are available.

Scope

What Does a Demolition Estimate Include?

Units follow the actual scope, not a template. A CMU wall removed in place is measured in square feet and converted to cubic yards for disposal. The same wall removed to salvage the block is counted differently, because the labor is different.

ScopeTypical measurementCost considerations
Building demolitionSF of footprint, or EA by structureStructural system, height, adjacency, machine access
Slab removalSF and CYThickness, mesh vs rebar, post-tensioning, support below
Concrete removalCY, SF or LF by elementElement type, reinforcement, breaker vs saw cutting
Asphalt removalSF or SYLift thickness, base treatment, haul-off volume
Foundation removalCY and LFDepth, footing width, reinforcement, backfill of the void
Wall removalSF and LFMaterial, height, load-bearing status, shoring
Roof removalSFRoofing system, layer count, deck type, working height
Interior / selective demolitionSF, LF and EAFinish type, fixture counts, protection, phasing, hand labor
Saw cuttingLF, by depthDepth, reinforcement, slurry containment
Debris haulingLoads, or CY looseTruck capacity, haul distance, cycle time, site queuing
DisposalTons, by material streamFacility accepted materials, tipping rate, separation
Recycling / salvageTons or EAMarket for the material, sorting labor, offsetting credit
Equipment and laborMachine hours; crew hoursProductivity against the actual material, hand-work content
Mobilization and protectionLS; SFDistance, machine count, dust partitions, floor protection

Get a fee quote for your demolition scope

Send the drawing set and we come back with a fixed fee and a delivery date before any work starts. Send your plans or email plans@edgeestimates.us.

What We Estimate

Our Demolition Estimating Services

Structural Demolition Estimating

Frame, structural slabs, load-bearing walls, columns, foundations and footings. Measured by element and by material, because a steel frame, a cast-in-place concrete frame and a wood-framed structure produce different debris streams, equipment and salvage positions from an identical footprint. Height drives the machine class; adjacency drives whether the structure can be pulled down or has to come apart piece by piece.

Selective Demolition Estimating

Specific elements removed while the surrounding construction stays in service. Selective demo carries far more labor per unit than structural demo, because much of it is hand work and because protecting what remains is itself a cost. Sequencing matters — a wall that comes out before temporary support is in place is a different price from the same wall after. Protection, phasing and cleanup are line items, not a lump sum.

Interior Demolition Estimating

Partitions, ceilings, flooring, doors and frames, casework, fixtures, and the MEP removals shown on the demo drawings. This is where drawings are thinnest and fixture counts matter most, so existing-condition photographs change the estimate materially. Dust partitions, negative air where specified, corridor and elevator protection and after-hours restrictions are carried separately.

Commercial Demolition Estimating

Office, retail, restaurants, warehouses, light industrial and mixed-use. Commercial demo brings constraints residential rarely does: occupied neighboring tenants, limited laydown, restricted hours, traffic control, and as-built conditions that differ from the drawings on file. Restaurant strip-outs in particular carry hood systems, grease-laden ductwork and equipment removals that are easy to miss on a plan.

Residential Demolition Estimating

Teardowns, additions and remodels, garages and outbuildings, and interior gut renovations. Smaller but not simpler — foundation depth, septic systems, wells and buried tanks are common surprises. What the drawings show gets estimated; what they do not gets listed as an exclusion, so you know where the risk sits.

Concrete and Asphalt Removal Estimating

Slabs on grade, structural slabs, foundations and footings, curb and gutter, sidewalks, pads and pavement. Concrete is converted from area to volume using actual thickness from the structural drawings, not an assumed thickness. Reinforcement changes the method — mesh breaks out differently from #5 bar, and post-tensioned slabs need a detensioning sequence that is a separate operation, not a faster version of the same work.

Site Demolition Estimating

Existing structures, pavement, retaining walls, fencing, light poles, signage, abandoned utilities and site obstructions. Site demo overlaps with clearing and grubbing, so we keep the line explicit and the site preparation scope separate — no double-count, no gap.

Debris Hauling and Disposal Estimating

Debris by material stream, loose volume after swell, tonnage conversion, truck loads, haul distance and cycle time, tipping, and recycling or salvage where the project calls for it. Covered in detail below, because it is the part of a demolition estimate that most often goes wrong.

Comparison

Selective vs Structural Demolition

Direct answer

Structural demolition removes a building's load-carrying system, usually with heavy equipment and few constraints on what happens to the material. Selective demolition removes specific elements while the rest of the structure stays standing and often stays occupied, which shifts the work toward hand labor, protection and sequencing. Selective demolition costs substantially more per square foot.

CategorySelective demolitionStructural demolition
ScopeDefined elements removed; surrounding work staysWhole structure or complete structural system
Typical workPartitions, ceilings, finishes, fixtures, isolated slab or wall openingsFrame, structural slabs, bearing walls, foundations
EquipmentSmall machines, skid steers, hand tools, saws, portable breakersExcavators, high-reach machines, hydraulic breakers, processors
LaborHigh labor content per unit; much of it by handLower labor content; machine-driven production
Site protectionExtensive — dust partitions, finish protection, occupied-area separationPerimeter control, adjacent structure protection, dust suppression
Safety considerationsWorking near live systems and occupied space; unknown conditions behind finishesStructural stability during takedown; collapse sequencing; exclusion zones
Cost driversLabor hours, protection, phasing, working-hour restrictions, cleanupMaterial volume, machine productivity, debris logistics, disposal tonnage
Method

How Demolition Quantities Are Calculated

Direct answer

Demolition quantities are measured from the demo plan cross-referenced against the architectural, structural and site drawings, because the demo sheet alone rarely describes the element well enough to price it. Each element is measured in its natural unit, identified by material, then converted to volume and weight for debris and disposal.

  1. Read the drawings and specification together

    General notes and the Division 02 spec usually carry more scope than the plan graphics do.

  2. Establish the demolition limits

    A save line, a property line, a control joint, a column line. Ambiguous limits become a written assumption.

  3. Cross-reference the other sets

    Architectural for wall types, finish schedules and fixture counts. Structural for slab thickness, reinforcement and footing depths. Civil for pavement sections and buried structures.

  4. Measure each element in its natural unit

    Walls in SF and LF, slabs in SF with thickness, footings in CY, fixtures in EA.

  5. Identify the material for every quantity

    Concrete, masonry, steel, wood, gypsum and mixed material behave differently in every downstream calculation.

  6. Convert to in-place volume, then apply swell

    Broken material occupies more space than it did in place, and loose volume is what actually rides in a truck.

  7. Convert loose volume to tons by material

    Using published conversion factors, so disposal can be priced the way facilities charge.

  8. Set equipment and labor

    Machine class by what the material and access allow. Crew hours with hand work separated from machine-assisted work.

  9. Calculate hauling and disposal

    From loose volume, truck capacity, haul distance, cycle time and the receiving facility's rates for that location.

  10. Review salvage and recycling

    Where the spec requires diversion or the material has a market.

  11. Apply unit costs, then write the assumptions and exclusions

    Before the estimate is issued, not after someone asks.

The Part That Goes Wrong

How Demolition Debris and Disposal Are Estimated

Direct answer

Debris is not measured — it is derived. In-place volume is swelled to loose volume, loose volume is converted to tons by material type, and tons are priced against the receiving facility's rate. Skipping the swell step understates truck loads. Skipping the weight conversion makes it impossible to price a tipping fee, because facilities bill by weight.

A contractor who prices debris by guessing at dumpster counts is exposed on two fronts at once: the number of hauls and the tonnage in each one.

Converting volume to weight

Debris leaves the site by volume in a truck but is charged by weight at the gate. The conversion depends entirely on the material, and the spread is large — a cubic yard of broken concrete and a cubic yard of dimensional lumber differ by roughly a factor of eight.

Long-reach excavator working on a pile of demolition rubble and twisted steel
Once the structure is down, the estimate stops being about the building and starts being about tonnage, trucks and gate rates.
Material streamApprox. lb per loose CYApprox. tons per CY
Concrete and asphalt1,4000.70
Roofing materials7310.37
Gypsum board4670.23
Mixed C&D debris4170.21
Metal2250.11
Wood1690.08

Source: volume-to-weight conversion factors published by California state and county agencies for construction and demolition debris reporting, consistent with US EPA conversion factor guidance. These are reporting averages. Jurisdictions publish their own tables, and a receiving facility's scale is the only figure that governs an invoice. Use these to build an estimate, not to predict a ticket.

The practical consequence: a concrete-heavy project generates modest volume and very large tonnage — a disposal problem. A wood-and-drywall project generates large volume and modest tonnage — a trucking problem. They price differently, and an estimate that treats all debris as one undifferentiated pile gets both wrong.

Disposal, recycling and salvage

Construction and demolition debris is the largest waste stream in the United States by a wide margin. The US EPA estimated 600 million tons generated in 2018 — more than twice the volume of municipal solid waste — with demolition accounting for more than 90 percent of it. Roughly 455 million tons went to next use and just under 145 million tons went to landfill.

Disposal

A tipping fee paid by the ton at a landfill or C&D facility. For scale, the Environmental Research and Education Foundation reported a 2025 unweighted national average municipal solid waste landfill tip fee of $63.48 per ton across 350 US landfills, up about 4 percent year over year. C&D-specific facilities frequently charge differently, and a local rate is the only one worth using on a bid.

Recycling

Clean concrete can be crushed for aggregate, sometimes on site, which trades haul distance and tipping for crusher mobilization and processing. Metals generally carry positive value. Clean wood, gypsum and asphalt shingles have markets that depend heavily on region.

Salvage

Fixtures, equipment, architectural materials and structural timber may be worth removing intact. Salvage adds labor and reduces disposal tonnage; whether it nets out positive depends on the local resale market, so we treat it as a documented line rather than an assumed credit.

Where a specification sets a diversion target — common on public work and on certification-seeking projects — sorting labor, separate containers and documentation become their own line items. A diversion requirement is not free and should not disappear into overhead.

Cost Factors

What Drives Demolition Cost

Demolition cost is driven by what the structure is made of, how a machine can reach it, and where the debris has to go. Everything else is secondary.

FactorEffect on the estimate
Structural systemWood, steel, masonry, cast-in-place concrete and post-tensioned concrete each require different methods, machines and durations from an identical footprint
Building heightAbove roughly three stories the machine class changes; high-reach equipment carries higher rates, longer mobilization and more setup
Concrete thickness and reinforcementDrives breaker selection, production rate, processing of rebar, and disposal tonnage
Interior finish densityA heavily built-out tenant space generates far more hand labor and mixed debris than an open shell
Site and equipment accessWhether the machine can reach the work, turn around and be loaded out — the largest swing factor on urban jobs
Adjacency and occupancyShared walls, public sidewalks and occupied neighbors force slower methods, phasing and added protection
Temporary protectionPartitions, floor protection, shoring of remaining structure, overhead protection
Utility disconnectsWho disconnects, who caps, and the lead time each requires
Working hours and traffic controlNight or weekend restrictions compress production; lane closures and flagging carry direct cost
Haul distance and disposal rateTwo projects with identical debris can differ widely on cycle time and tipping alone
Regulated materialsChanges both price and schedule; often a separate contract entirely
MobilizationDistance, number of machines, transport permits for oversize equipment
Local regulationPermit requirements, notification lead times, diversion mandates, hours of operation
Production

Equipment and Productivity

Equipment selection is a consequence of the material and the access, not a preference. Once the machine is fixed, productivity against that specific material determines duration, and duration determines cost.

Two constraints get underestimated. Truck turnaround: on a constrained site the machine waits for trucks more than it works, and the estimate has to reflect the slower of the two. And attachment changes — a machine swapping between a breaker and a grapple several times a day is not producing during the swap.

Excavator fitted with a hydraulic breaker working broken concrete while a worker in high-visibility clothing observes
The attachment on the machine is what sets the production rate, and the production rate is what sets the duration.
EquipmentTypical applicationWhat limits production
Excavator with thumb or grappleGeneral structure takedown, sorting, loadingReach, swing room, truck turnaround
High-reach excavatorMulti-story structures taken down from the topSetup area, machine availability, mobilization cost
Hydraulic breakerConcrete slabs, foundations, mass concreteConcrete strength, thickness, reinforcement density
Concrete processor / pulverizerSeparating rebar from concrete on siteElement size, feed rate, stockpile space
Skid steerInterior demo, tight-access work, cleanupDoor and corridor widths, floor loading limits
Loader and dozerStockpiling, loading trucks, site structuresStockpile space, truck queuing, obstruction density
Concrete sawClean cut lines for selective removalDepth, reinforcement, slurry containment
Dump trucksHauling debris off siteCycle time, capacity by weight or volume, site access
Labor

Demolition Labor Estimating

Direct answer

Demolition labor is estimated by separating machine-assisted work from hand work, then applying crew hours to each. Hand work — selective removal, sorting, protection, cleanup — carries far more labor per unit than machine demolition and is usually where labor estimates fall short.

A demolition crew is rarely one thing. On a selective job there is an operator, laborers doing hand demolition and sorting, and a cleanup component that runs behind production and continues after it. A single blended crew rate applied to total square footage hides all three.

Productivity depends on actual conditions — material, access, protection, working hours, and how much work has to happen around things that are staying. We state the productivity basis in the estimate so you can substitute your own crew rates and historical production, rather than being handed a total with no way to test it.

Regulated Materials

What We Carry and What We Exclude

Materials that commonly appear on older buildings include asbestos-containing materials, lead-based paint, mold, PCB-containing materials such as older light ballasts and certain caulks, and mercury in switches, thermostats and lamps. Underground storage tanks and contaminated soil turn up on redevelopment sites.

Two federal requirements shape how this appears in an estimate:

The practical effect on a bid is schedule as much as money: a ten-working-day window sits in front of the demolition start, and a contractor who discovers that late has already lost two weeks. Where documentation exists, we build the scope in. Where it does not, the estimate carries a written exclusion rather than a number invented to fill the gap. Testing, abatement and disposal of regulated material are performed by qualified licensed specialists, and the estimate says so.

Frequently Left Out

The Pre-Demolition Package That Becomes Line Items

Demolition has required pre-work that appears on no drawing but on every real project cost. It gets left out of bids and argued about later.

Pre-demolition itemWhy it existsHow it appears in the estimate
Written engineering surveyOSHA requires an engineering survey by a competent person before demolition starts, covering framing, floors and walls, the possibility of unplanned collapse, and hazardous substances in pipes, tanks or equipment — with written evidence that it was performed (29 CFR 1926.850)Professional service line, or a noted exclusion if the owner is providing it
Asbestos survey and agency notificationSurvey required before demolition or renovation under the asbestos NESHAP; notification carries a lead time before work can beginUsually owner-provided; identified as carried or excluded, with the notification window shown as a schedule constraint
Utility disconnects and capsServices shut off, disconnected and capped before workLine item or exclusion, depending on who performs it
PermitsDemolition permits, and in some jurisdictions separate street, dust or haul permitsAllowance where fee schedules are published; otherwise excluded and flagged
Temporary protectionProtecting occupants, the public and adjacent propertyMeasured line item
Rodent and pest abatementRequired in some jurisdictions before structure demolitionAllowance or exclusion by jurisdiction

Every one of these appears on the estimate, even when the answer is "excluded." A line reading "excluded — owner to provide" is worth more than a line that is not there at all.

Talk to an estimator about your demolition scope

Call (213) 784-0979 or (469) 829-7575, or send the drawings and we will come back with a fee and a date.

Pricing Reality

How Much Does Demolition Cost?

Direct answer

There is no reliable national per-square-foot rate for demolition. The figures circulating online come from contractor marketing content rather than published cost research, and they rarely define what scope is included. Demolition cost is driven by structural system, access, debris tonnage and local disposal rates — variables that move the number by multiples, not percentages.

Unlike new construction, where bodies such as the National Association of Home Builders publish cost-per-square-foot data from surveyed projects, demolition has no comparable national dataset. The ranges that dominate search results trace back to demolition contractors' own blog content. They are not sourced, they do not state what is included, and they do not say whether disposal, permits or regulated material are in or out.

What actually decides the number: what the structure is made of (a wood-framed and a cast-in-place concrete building of the same footprint are not comparable projects); how a machine reaches it; how many tons leave, since disposal charges against tonnage rather than building area; where those tons go, because haul distance and tipping rates vary by state and facility; whether regulated material is present; and whether the work is selective or complete.

A usable demolition number comes from measuring the actual structure on the actual drawings and pricing it against the disposal market for that location. That is what an estimate is for.

Demolition cost vs demolition estimating fee

 Demolition project costDemolition estimating fee
What it isWhat it costs to perform the demolition workWhat it costs to have the estimate prepared
Who receives itThe demolition contractor and their suppliersEdge Estimates
ScaleDetermined by the projectA small fraction of the project cost
Driven byStructure, access, tonnage, disposal, regulationDrawing count, scope complexity, number of structures, deadline

Edge Estimates quotes a fixed fee before any work begins. Published fee ranges are $300 to $800 for single-trade estimates and $800 to $2,500 for multi-trade estimates, with the exact figure depending on the drawing set, the number of structures, scope complexity, level of detail required and the deadline. You see the fee and approve it before we start.

What We Need From You

What Drawings and Documents We Need

DocumentWhy it matters
Demolition plansThe intended limits of removal, plus the general notes that expand the scope
Architectural plansWall types, finish schedules, door and fixture counts, ceiling types
Structural plansSlab thickness, reinforcement, footing sizes and depths, framing members
Site and civil drawingsPavement sections, site improvements, buried structures, utilities
SpecificationsDivision 02 requirements, protection, diversion targets, salvage obligations
Existing-condition drawingsOften the only record of what is actually in the building
Hazardous-material surveyTurns regulated material from an exclusion into carried scope
Utility disconnect informationWho disconnects and caps, and the lead time involved
Site photographs or walk-throughThe most useful supplement where drawings are thin, especially for interior demo
Addenda and scope lettersFrequently move scope between parties after the base set was issued

A complete set produces a tighter estimate with fewer assumptions. A partial set still produces an estimate — the assumptions are simply written down, so you know where the uncertainty sits.

How It Works

Our Demolition Estimating Process

  1. Submit plans

    Send the drawing set, specifications and any existing-condition information to plans@edgeestimates.us or through the contact form. PDF, DWG or a shared link all work.

  2. Scope review

    An estimator reads the demo plan, the general notes and the Division 02 spec to establish what is in scope and what is ambiguous.

  3. Fixed-fee quote

    The fee, the deliverables and the delivery date, typically within about two hours during business hours. Nothing proceeds until you approve it.

  4. Drawing and specification review

    Architectural, structural and site drawings cross-referenced against the demo plan, so every element has a known material, thickness and reinforcement condition.

  5. Demolition takeoff

    Every element measured in its natural unit and tagged by material, marked on the drawings as it is taken so quantities trace back to a location.

  6. Labor, equipment and disposal pricing

    Crew hours and equipment durations applied to the measured quantities. Debris swelled, converted to tons by stream, and priced for hauling and disposal against the project location.

  7. Quality review

    A second pass before anything is issued: demolition limits against the plan and general notes, cross-check between the drawing sets, quantity math and unit consistency, material identification, equipment and productivity assumptions, the debris build-up, haul and disposal rates for that location, specification requirements for protection and diversion, and the assumptions and exclusions list.

  8. Final delivery

    Estimate workbook and marked-up drawings. Standard delivery is 24 to 72 hours depending on project size and scope complexity. Questions after delivery are part of the job.

Deliverables

What You Receive

  • Demolition quantity takeoff, organized by scope and by material
  • Marked-up drawings showing what was measured and where
  • Labor build-up with crew composition and hours
  • Equipment build-up with machine class and duration
  • Debris quantities by material stream, in loose cubic yards and tons
  • Hauling calculation with load counts and haul distance basis
  • Disposal costs or documented allowances
  • Recycling and salvage lines where the scope calls for them
  • Estimate workbook in Excel, formulas intact so you can substitute your own rates
  • Scope notes, assumptions and exclusions, written out
  • Bid-ready breakdown, organized to CSI MasterFormat where the project uses it
Toolchain

Software We Use

Bluebeam Revu for PDF measurement and drawing markup, so every quantity traces back to a location on a sheet. PlanSwift and STACK for on-screen takeoff. Trimble for estimating workflows. RSMeans as a reference cross-check rather than a default. Excel for the workbook itself, delivered live so you can substitute rates.

Software improves measurement and traceability. Deciding whether a general note pulls an extra 4,000 square feet of slab into the scope is judgment, and no tool does it.

Coverage

Project Types We Estimate

Residential teardowns, additions, garages and gut renovations. Commercial office, retail, restaurant strip-outs and mixed-use. Multifamily unit and common-area demo. Industrial warehouses, manufacturing facilities and equipment foundations. Institutional schools, healthcare and civic buildings, usually phased around occupancy. Public agency demolition packages with diversion and documentation requirements. Renovation work inside occupied structures. And site redevelopment — existing structures, pavement and foundations cleared for new work.

Who uses demolition estimating services

WhoThe problem it solves
Demolition contractorsBid volume without hiring. Takeoff is the slow part, and a sub with one estimator can only cover so many.
General contractorsAn independent quantity basis for comparing sub quotes that use different units and different inclusions.
Renovation and TI contractorsSelective demo priced properly instead of carried as a percentage allowance that gets exceeded.
Developers and ownersA defensible demolition number during feasibility, before committing to a site.
Construction managers and public agenciesA check estimate against bids, and a quantity basis for change orders.
The Case For It

Why Contractors Outsource Demolition Estimating

Estimating capacity stops being the limit on how many demolition jobs you can chase. The takeoff — the slow part — transfers cleanly. Debris, disposal, protection and pre-demolition items get itemized rather than left out. Loads and tonnage come from measured quantities instead of eyeball estimates. Bid documents arrive in a consistent format, which makes sub comparison and historical tracking possible. And the cost scales with bid activity rather than sitting as fixed salary.

We do not promise won bids, guaranteed savings or a numeric accuracy percentage. An estimate reflects the drawings it was built from and the assumptions written into it, and those are stated openly so you can judge them.

Comparison

Demolition vs Deconstruction

Direct answer

Demolition removes a structure as quickly as practical using equipment, with material sorted afterward for disposal or recycling. Deconstruction takes the structure apart by hand in reverse order of construction to recover materials intact for reuse. Deconstruction takes longer and costs more in labor; whether it nets out ahead depends on the resale value of what is recovered.

Published comparisons put the gross cost of deconstruction above conventional demolition on comparable residential structures, with the net position depending on the local market for salvaged material. A Michigan State University study found demolition at roughly $5.68 per square foot against deconstruction with salvage at roughly $6.21, before resale recovery. An earlier US EPA study of a 2,000-square-foot residence put deconstruction at $4.50–$5.40 per square foot against $3.50–$5.00 for standard demolition. Both are point-in-time studies on specific structures, not current national rates, and neither belongs in a live bid.

Timeline is the practical constraint — deconstruction of a standard house commonly runs 10 to 14 days. Where it is specified, or where a diversion target effectively requires it, we estimate the added labor, the sorting and handling, and the reduced disposal tonnage as separate lines so the trade-off is visible rather than buried.

Service Area

Where We Work

Edge Estimates has provided construction estimating services since 2016 and works on projects in all 50 states. Our offices are in Los Angeles, California and Dallas, Texas, and estimates are delivered electronically, so location does not affect turnaround.

Related services: sitework and demolition estimating, earthwork estimating, site preparation estimating, concrete estimating and construction cost estimating.

Why location changes demolition cost

The same building demolished in two cities produces two different numbers, and the gap is usually wider than people expect. Labor rates vary by market and by whether the work is prevailing-wage. High-reach machines are not available everywhere without long mobilization. Disposal rates vary by state and by facility, and haul distance to an accepting facility drives cycle time and truck count. Diversion mandates exist in some jurisdictions and not others, changing the sorting labor. Permit fees and notification lead times differ by agency. Working-hour limits and traffic control slow production in dense areas.

There is no single national demolition rate, and an estimate built against one is not an estimate.

Questions

Demolition Estimating FAQs

What is demolition estimating?
Demolition estimating is the process of measuring everything to be removed from a structure or site, identifying what it is made of, and calculating the labor, equipment, debris, hauling and disposal needed to remove it. The result is a priced estimate with documented quantities, assumptions and exclusions.
What does a demolition estimate include?
Measured quantities by scope and material, labor hours by crew type, equipment class and duration, debris quantities in loose cubic yards and tons, hauling loads, disposal costs or allowances, mobilization, temporary protection, and a written list of assumptions and exclusions.
What is a demolition takeoff?
A demolition takeoff is the measurement stage — square feet of wall and floor to be removed, linear feet of curb and saw cutting, cubic yards of concrete and foundation, and counts of doors, fixtures and equipment. It produces quantities and marked-up drawings, but no pricing.
How do you calculate demolition costs?
Measure each element in place, identify its material, convert to volume, apply swell to get loose volume, convert to tons for disposal, then apply labor productivity, equipment duration, hauling and tipping. Unit costs are applied to measured quantities rather than estimating total machine-days by feel.
How much does demolition cost per square foot?
There is no dependable national figure. The per-square-foot ranges that circulate online come from contractor marketing content, not published cost research, and they rarely say what is included. Structural system, access, debris tonnage and local disposal rates move the number by multiples.
How do you estimate demolition debris?
Debris is derived, not measured. In-place volume comes from the takeoff, swell converts it to loose volume, and published conversion factors turn loose volume into tons by material stream. Concrete runs about 1,400 lb per loose cubic yard; wood runs about 169 lb. That spread is why debris has to be tracked by material.
How are disposal costs estimated?
By tonnage per material stream against the receiving facility's rate for the project location, plus haul cost derived from truck capacity, distance and cycle time. Facilities bill by weight, so an estimate that only tracks volume cannot price disposal.
What is selective demolition?
Selective demolition removes specific elements while the surrounding construction stays in place, and often stays occupied. It carries a much higher labor content per unit than structural demolition because much of the work is done by hand and because protecting what remains is itself a cost.
What is structural demolition?
Structural demolition removes a building's load-carrying system — frame, structural slabs, bearing walls, columns, foundations and footings. It is equipment-driven, and the machine class is set by the building's height, material and how close the neighbors are.
What is interior demolition?
Interior demolition is the strip-out of partitions, ceilings, flooring, doors, casework, fixtures and specified MEP removals from inside a structure that is staying. It is the scope where drawings are thinnest, so fixture counts and site photographs matter more than usual.
Can you estimate concrete demolition?
Yes. Slabs on grade, structural slabs, foundations, footings, curb and gutter, sidewalks, pads and concrete structures. Thickness comes from the structural drawings rather than an assumption, and reinforcement is identified because it changes both method and disposal tonnage.
Can you estimate asphalt and pavement removal?
Yes — parking lots, driveways, roads and pavement sections. Area is measured from the site drawings and lift thickness comes from the pavement section detail, which is what converts area into haul-off volume.
Can you estimate foundation removal?
Yes. Footings and foundation walls are measured in cubic yards and linear feet from the structural drawings, with depth and reinforcement noted. Backfilling the resulting void is a separate line, and it is one that gets left out of demolition bids regularly.
What drawings do you need for a demolition estimate?
Demolition plans, architectural and structural drawings, site and civil drawings, and the specifications. Existing-condition drawings, a hazardous-material survey, utility disconnect information and site photographs all improve the estimate. A partial set still works — the assumptions are simply written down.
Do you estimate hazardous-material scope?
Edge Estimates does not perform environmental testing, abatement or remediation and holds no hazardous-material certification. Where a survey report or abatement scope exists, we carry that scope in the estimate. Where regulated material is suspected but undocumented, we exclude it in writing and state what information would be needed to price it.
Is an asbestos survey required before demolition?
Under the federal asbestos NESHAP, owners and operators must thoroughly inspect for asbestos before demolition or renovation at institutional, commercial and industrial buildings, covering nonfriable Category I and II materials as well as friable ones. Notification is generally required at least 10 working days before demolition starts, and for demolition that often applies whether or not asbestos is found. State and local agencies administer this and requirements vary.
How long does a demolition estimate take?
Standard delivery is 24 to 72 hours depending on project size and scope complexity. You get a fixed-fee quote first — usually within about two hours during business hours — and nothing proceeds until you approve it.
Can contractors bid directly from the estimate?
Yes. The estimate is delivered as a live Excel workbook with formulas intact, organized to CSI MasterFormat where the project uses it, so you can substitute your own crew rates, equipment rates and markup before submitting.
Excavator demolishing a concrete structure with dust rising from the debris

Send Us Your Demolition Plans

Send the drawing set and we will come back with a fixed fee and a delivery date before any work starts. If you would rather talk it through first, call an estimator and describe the scope.

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