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How to scope a demolition job

Interior demo looks like swinging a sledgehammer, but the real work is sequencing — what gets capped, what gets salvaged, what gets tested for asbestos or lead, and how the debris leaves the site without trashing the rest of your house.

Licensed & insured in RI & MAPros carry general liability and workers comp; asbestos work requires separate DOH/DEP licensing in both states. Ask for current certificates of insurance.
Pre-1980 homes get tested firstWe default to asbestos screening on any home built before 1980 and EPA RRP lead-safe protocols on pre-1978 painted surfaces. No exceptions on permitted work.
Dust containment, not just plastic sheetingZip walls, HEPA negative-air machines, and protected egress paths. The rest of the house should look untouched when crews leave.
Engineer-stamped scope on structural workAny load-bearing wall, header swap, or floor opening requires a stamped letter or structural drawings before demo starts — not after.
$3–7per sqft

Interior gut demo runs $3–7 per sqft for straightforward work; selective demo with salvage runs $5–12 per sqft because of the slower, careful tear-out. By room: bathroom gut $1,500–4,000, kitchen gut $3,000–8,000.

The big swings are hazmat (asbestos or lead testing and abatement), structural vs. non-structural scope, disposal weight (plaster and tile are heavy), and how protected the rest of the house has to stay during the tear-out.

See what drives price

How we price it

These are the factors that move a quote up or down. Knowing them helps you share the right context upfront so we can quote your specific situation accurately — and so you can compare bids on apples-to-apples scope.

Hazmat: asbestos & lead
Primary driver

Anything built before 1980 likely contains asbestos somewhere — 9x9 floor tile and mastic, popcorn ceilings, pipe wrap, joint compound, vermiculite insulation. Pre-1978 painted surfaces are presumed to contain lead. Testing is $150–500 for a handful of bulk samples; abatement by a licensed contractor adds $8–25 per sqft depending on material. Skipping the test on a pre-1980 home is illegal in RI and MA if the work disturbs suspect material.

Benchmark:Asbestos test $150–500 · Abatement $8–25/sqft · Lead RRP add $1–3/sqft
Worth asking about: Demo crew willing to start tearing into pre-1980 plaster, popcorn, or 9x9 tile without a sample test in hand.
Structural vs. non-structural
Primary driver

Non-structural partition walls are the cheapest demo on the menu — $4–8 per linear foot of wall. Load-bearing walls require a structural engineer (PE) letter or stamped drawings ($400–1,500), temporary shoring, and a header — adding $1,500–6,000 to the demo line item before the framer even shows up. Floor openings (for stairs, drops, plumbing chases) are structural by definition.

Benchmark:Non-structural wall $4–8/lf · Engineer letter $400–1,500 · Load-bearing wall + temp shoring + header $1,500–6,000
Worth asking about: Anyone willing to pull a load-bearing wall without stamped engineering. The wall above does not care that the crew "has done this before".
Disposal & dumpster sizing
Primary driver

Demo debris is heavy. Plaster, tile, and concrete fill a dumpster by weight long before they fill it by volume — a 15-yard plaster job often weighs more than a 30-yard drywall job. Pricing is per haul plus tonnage overage. Bathroom gut: 10–15 yd. Kitchen gut: 20–30 yd. Full first-floor gut: 30–40 yd.

Benchmark:10 yd $400–600 · 15 yd $500–750 · 20 yd $600–900 · 30 yd $750–1,200 (plus tonnage over the included weight)
Site protection & containment
Secondary

Whole-home gut on a vacant property is the fastest, cheapest configuration. The price climbs when finished spaces have to stay clean: zip-wall containment, ramboard floor protection on the egress path, HEPA negative-air machines, and door masking. Expect 10–20% added to labor for an occupied-home selective demo.

Benchmark:Zip wall + negative air $300–600 setup · Floor protection $0.50–1.00/sqft of path
Salvage & selective tear-out
Secondary

Pulling cabinets, vanities, or trim intact for reuse or donation (Habitat ReStore takes most of it) takes 2–4x longer than smashing. Decide before the quote whether anything is coming out alive — once a sledge swing happens, the option is gone.

Benchmark:Salvage adds $2–5/sqft over straight demo
Permit & inspection requirements
Situational

Most cities require a demo permit for any work that touches structure, electrical, plumbing, or mechanical — even if you are just opening a wall to relocate plumbing. Cosmetic-only tear-out (carpet, trim, cabinets staying in place) usually does not need one. Permit fees run $50–300 in most RI/MA municipalities, and unpermitted permitted work becomes a real problem when you sell.

Benchmark:Demo permit $50–300 depending on municipality
Worth asking about: Pro suggesting you skip the permit on work that obviously needs one (any structural change, plumbing relocation, electrical demo).
Access & egress path
Situational

A first-floor kitchen demo with a driveway-side door is the easy case. Third-floor walk-up, no elevator, 40-foot debris carry to the dumpster? Add labor. Tight urban lots where the dumpster has to sit in the street (permitted occupancy fee in Providence, Boston, Cambridge) add $50–200 to the disposal line.

What else might come up

Most projects touch more than one trade. Here's where this one usually overlaps with others — so you can plan ahead instead of scrambling.

Carpentry / framing
Immediately after demo on any project that opens or closes a wall, swaps a header, or modifies the floor system.

Demo and rough framing are sequential — the framer takes the gutted shell, installs new headers, blocks for fixtures, and brings the framing up to code. Booking them within the same week of demo keeps the project on schedule.

Plumbing rough-in
Before demo (cap-and-disconnect of live lines) and after framing (DWV and supply rough).

A licensed plumber must cap live water and gas before walls come out — demo crews are not licensed for this in RI/MA. After framing, the same plumber runs DWV, supplies, and sets the bath/kitchen rough for inspection.

Electrician rough-in
Before demo (disconnect/cap of live circuits) and after framing (rough wiring for the new layout).

Cutting into a wall with hot Romaine inside is how Sawzalls weld themselves to copper. Electricians de-energize and cap pre-demo, then rough in the new circuits to code (AFCI/GFCI requirements have tightened in 2023+ NEC).

HVAC
When demo exposes or removes ductwork, returns, or any equipment.

Capping open ducts during demo is non-optional — open returns suck demo dust into the system and recirculate it through the whole house. HVAC may also need to relocate runs around new framing.

Asbestos / lead abatement
Before any demo on positive test results.

Abatement is a separate, licensed scope — demo crew cannot legally handle it in RI or MA. Abatement contractors set their own containment, remove the regulated material under negative air, and provide clearance air sampling before demo restarts.

What to send when you reach out
Send us:
  • Year the home was built (anything pre-1980 changes the scope materially)
  • Square footage of the area being demolished
  • Scope: which rooms, which walls, what is staying vs. coming out
  • Photos or video of each space (cabinets, ceilings, floors, visible plumbing/electrical)
  • Occupied or vacant during the work
  • Whether anything is being salvaged (cabinets, fixtures, hardwood, trim)
Helps a lot if you know it:
  • A floor plan or rough sketch with walls labeled load-bearing vs. partition (if known)
  • Whether you have an architect or engineer involved already
  • Whether plumbing/electrical subs are lined up or you need referrals
  • Dumpster placement constraints (street permit needed, narrow driveway, etc.)
  • Timeline pressure — demo before a closing date or a scheduled framer
Worth flagging if you see any of these — they shape the diagnosis:
  • Visible 9x9 floor tile or popcorn ceiling in a pre-1980 home (likely asbestos)
  • Gray/white fibrous wrap on basement pipes (likely asbestos pipe insulation)
  • Vermiculite-style insulation in the attic (likely asbestos-contaminated)
  • Peeling or chalking paint in a pre-1978 home (lead RRP applies)
  • Any wall you suspect is load-bearing (exterior walls, walls under second-floor partitions, walls perpendicular to ceiling joists)

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