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Survey & sample
An AHERA-accredited inspector walks the property, flags suspect materials, and collects small samples using wet methods and containment so nothing is released into the air.
Certified sample collection and NVLAP-accredited lab analysis for Seattle's Craftsman bungalows, Tudors, and box houses. Puget Sound Clean Air Agency expects a good-faith asbestos survey before you demolish or renovate — we give you the written report that keeps the project moving.
The Ballard bungalows, the Wallingford box houses, the Capitol Hill Tudors and Queen Anne foursquares — most went up when asbestos was standard in flooring, insulation, plaster, and roofing. Add the wet Pacific Northwest climate that keeps basements and crawlspaces damp, and materials degrade faster than owners expect. You almost never can tell by looking. These are the materials we sample most across the city.
Loose, pebbly vermiculite (often the Zonolite brand) poured into the attics of older Seattle homes can carry amphibole asbestos. Never rake or vacuum it before a reroof or attic conversion — we sample it safely first.
Those small 9-inch tiles in basements, back kitchens, and rec rooms, and the black cutback mastic underneath, are a classic find in Seattle bungalows and mid-century homes built before the 1980s.
The white, plaster-like pipe wrap and duct lagging in damp Seattle basements and crawlspaces is friable and easily disturbed during a plumbing repair, furnace swap, or crawlspace encapsulation. It's one of the highest-risk materials in the house.
Sprayed popcorn ceiling texture and skim coats from the mid-century era often contain chrysotile. Scraping one in a Fremont or West Seattle remodel before testing releases fibers across the whole room.
Cement-asbestos transite siding and shingles, plus the roofing felt and built-up roofing on flat-roofed additions, turn up on cottages and bungalows across Ballard, Georgetown, and the older neighborhoods.
Wall plaster, drywall joint compound, and old glazing and window caulk all turn up positive in pre-war Seattle homes. We take composite samples so a gut remodel doesn't miss anything hiding in the walls.
Washington regulates asbestos more strictly than most states, and in the Seattle area the Puget Sound Clean Air Agency is the authority you actually deal with. The short version: before you demolish or renovate, a good-faith asbestos survey comes first. Testing is the step that keeps a project compliant and moving.
PSCAA is the local air authority for King County and Seattle. Its rules require a good-faith asbestos survey by an accredited inspector before any demolition or renovation — and that applies to structures of essentially every age, not just older ones. For covered projects, PSCAA also requires a notification, generally filed at least 10 working days before work begins. Your test report is what that whole process is built on.
Washington L&I certifies the asbestos workers, supervisors, and contractors who are allowed to disturb and remove asbestos in the state, and sampling relies on AHERA-accredited building inspectors. Using certified people is what makes a result stand up for a contractor, a buyer, or the City of Seattle's permit review.
The federal asbestos NESHAP standard is delegated to PSCAA in the Puget Sound region, which is why the survey, the notification, and the disposal rules all run through the local agency. An asbestos survey is what tells you whether that notification, and certified abatement, even apply to your Seattle job.
Asbestos testing isn't a guess or a hardware-store kit. It's a controlled process: careful sampling by an accredited inspector, NVLAP lab analysis, and a clear written result you can hand to a contractor, a permit reviewer, or PSCAA. Here's how a job runs across Seattle.
An AHERA-accredited inspector walks the property, flags suspect materials, and collects small samples using wet methods and containment so nothing is released into the air.
Samples go to an NVLAP-accredited lab for Polarized Light Microscopy (PLM), with TEM available for fine flooring and confirmation. No home-kit guesswork.
You get a plain-English report: what was sampled, percent asbestos by type, and where it is — formatted to satisfy the PSCAA survey and support your permit or contractor scope.
If it's positive, we explain your options and can arrange certified abatement plus post-work clearance air testing. If it's clean, you're cleared to proceed.
Testing is where every safe job starts — but if your sample comes back positive, you'll want it handled properly. We connect you with L&I-certified abatement for containment, the required PSCAA notification, safe removal, and post-work clearance air testing so you have independent proof the space is safe to reoccupy.
In almost all cases, yes. The Puget Sound Clean Air Agency (PSCAA) requires a good-faith asbestos survey by an accredited inspector before any demolition or renovation, and that requirement applies to structures of essentially every age — not just older homes. The survey result determines whether a notification and certified abatement are required, and City of Seattle permit reviews routinely expect that documentation.
Most residential asbestos tests in the Seattle area run about $300 to $700, depending on how many materials are sampled and how fast you need the lab results. A single-material check — say a popcorn ceiling or a floor tile — sits at the low end; a full good-faith survey for a remodel or demolition with multiple samples costs more. You get the price up front before any sampling.
Sampling should be done by an AHERA-accredited building inspector, and the samples analyzed by an NVLAP-accredited lab. Washington's Department of Labor & Industries (L&I) certifies the workers, supervisors, and contractors who are allowed to disturb and remove asbestos in the state. That combination — accredited inspector, accredited lab, certified abatement — is what makes a result defensible for a contractor, a buyer, or PSCAA.
Usually, yes. Unlike some jurisdictions that tie the requirement to a build date, PSCAA's good-faith survey requirement applies to structures of essentially every age before a covered demolition or renovation. Newer buildings are far less likely to test positive, but the survey itself is still expected. For a pre-1985 Seattle home, testing is doubly important because a positive result is genuinely common.
In bungalows, Tudors, foursquares, and box houses built before the 1980s, the usual suspects are vermiculite attic insulation, 9x9 vinyl floor tiles and their black mastic, pipe and duct lagging in damp basements and crawlspaces, popcorn and textured ceilings, transite siding, roofing felt, and plaster or joint compound. You can't confirm any of it by sight — a lab-analyzed sample is the only reliable answer.
For a pre-1985 bungalow or box house, it's often worth it. A clean survey removes an unknown that buyers, inspectors, and lenders flag, and if material is present, disclosing a documented result is far better than a surprise mid-transaction. And because PSCAA expects a survey before any remodel, addition, or DADU project anyway, testing early keeps your timeline on track.
Testing identifies whether a material contains asbestos and how much, through certified sampling and accredited lab analysis. Removal — properly called abatement — is the licensed work of containing and safely taking that material out, followed by clearance air testing. You always test first: the result decides whether removal is even needed and defines its scope.
We arrange certified sampling across the city — Ballard, Capitol Hill, Fremont, West Seattle, Queen Anne, Wallingford and beyond — plus the wider King County suburbs like Bellevue, Renton, Kent, and Shoreline, where the older housing stock is just as likely to hide asbestos. Use the quote form on this page for a same-day quote.
Certified sampling and accredited lab results across Seattle and King County. Serving Ballard, Capitol Hill, Fremont, West Seattle, Queen Anne, Wallingford, and the Eastside and south-county suburbs.