Park Slope runs on two kinds of older buildings: the brownstone and limestone townhouses on the blocks around Prospect Park, and the pre-war apartment houses and co-ops along the park and the numbered streets. Both are in constant renovation — gut jobs, conversions between single-family and multifamily use, and unit-by-unit co-op alterations — and both were built with materials that predate every asbestos rule on the books.
A serious renovation disturbs those materials: plaster comes down, floors are layered over or ripped out, old heating systems get replaced. The survey is how you know what's in them before the work starts, not during it. Clear Advisory has completed recent project work in the neighborhood, and handles surveys for owners, buyers, architects, and co-op boards alike.
Common Asbestos Materials in Park Slope Homes and Buildings
- Pipe and boiler insulation on original steam and hot-water heating systems
- Plaster and joint compound — original walls, ceilings, and decades of patch layers
- Vinyl and asphalt floor tile and mastic, often layered over original wood floors
- Roofing materials on the main roof, rear extensions, and bulkheads
- Cement siding and panels on rear facades and extensions
- Duct insulation and old mechanical-room materials in cellars and boiler rooms
Our Services in Park Slope
- Asbestos surveys and investigations before renovation, conversion, or demolition
- Asbestos testing — accredited lab analysis (PLM, with TEM confirmation where required)
- ACP-5 filings for DOB applications and co-op alteration packages
- Project management and supervision of asbestos abatement
Inspections are scheduled within 1–2 days, and lab results typically return in about 24 hours. Surveys are priced from a $750 site visit plus lab analysis — you'll know the sample count and the expected total before the lab work runs. The ACP-5 filing fee is $50, billed when results come back.
FAQ
We're converting a Park Slope townhouse back to single-family. Do we need a survey? Yes — the requirement follows the work, not the end use. A gut conversion disturbs plaster, flooring, and heating-system insulation throughout the house, and the DOB filing needs the asbestos assessment and ACP-5 behind it. The survey also scopes any abatement into the project plan before demolition starts.
Our co-op board requires asbestos documentation for our renovation. What do they actually need? Typically the survey report and the filed ACP-5 for the work area — proof that the materials your alteration will disturb were sampled and analyzed. Boards and managing agents ask for it because the filing only covers what was actually tested, so the survey has to match your alteration scope.
How much does a Park Slope survey cost? From $750 for the site visit, plus lab analysis per sample. A whole-house gut samples more materials than a single-unit renovation; you'll know the sample count and expected total before lab work runs. Most homes land between $900 and $1,500.
Can the survey cover only the unit or floors we're renovating? Yes. The survey is scoped to the work area your project will disturb. If the scope grows later to touch materials that weren't sampled, those get tested then.
What if asbestos turns up mid-renovation because nobody tested? Work in the affected area stops while samples are taken and analyzed, and positive material needs a licensed abatement contractor under DEP notification before general work resumes. The same discovery made at survey stage — days earlier — is a priced, scheduled line item instead.
Schedule a Survey in Park Slope
Call (877) 586-7172 or email info@clearadvisory.org. Clear Advisory's team holds New York State DOL certifications as Asbestos Inspector, Asbestos Contractor, and Asbestos Supervisor, along with NYC DOB Site Safety Supervisor credentials.
Clear Advisory · 100 Jay St, Brooklyn, NY 11201 · (877) 586-7172