San Francisco Asbestos Testing — Every Neighbourhood, Accredited Lab Results
ClearGuard Environmental works San Francisco out of a Financial District office, with samplers covering every neighbourhood from the Outer Sunset to Bayview and out to Daly City, South San Francisco, Brisbane and Pacifica. Victorian and Edwardian flats, 1920s apartment stock and post-war infill all share the same short list of suspect materials — plaster and joint compound, stacked flooring over black mastic, basement pipe wrap and pre-1978 paint. We collect the material, keep chain of custody and return an accredited laboratory result. We never bid, sell or perform removal.
- Flat $475 — $50 off today with code CLEAR50
- Certified sampler on site today in most of the region
- Accredited laboratory report, same day or next day
- We collect and test material. ClearGuard does not sell removal work, keeping the finding independent.
Property material check
Locate the property
Seven western states staffed directly · no account, no card. You see the price before anything is booked.
Local building stock
What we sample in San Francisco
Victorian and Edwardian plaster, lath and joint compound; layered pre-1978 lead paint on sash and trim; 9-inch vinyl-asbestos tile and sheet flooring over black mastic in flat kitchens; basement pipe wrap and boiler insulation; window glazing putty and transite flue pipe.
Work here is read against the Bay Area Air Quality Management District (BAAQMD Regulation 11, Rule 2), the San Francisco Department of Building Inspection and Cal/OSHA, so the report is written in the format those desks expect.
Plaster, lath and joint compound
Opened on nearly every flat, TIC and soft-story remodel in the city.
Stacked flooring and black mastic
Kitchens in the Mission, Sunset and Richmond often hide three layers over 9-inch tile.
Basement pipe and boiler insulation
Disturbed by foundation, seismic and garage-conversion work.
Window glazing, putty and exterior caulk
Sampled before sash replacement on pre-war facades.
Coverage
Cities covered across San Francisco County · northern San Mateo County
- San Francisco
- Mission District
- Noe Valley
- Bernal Heights
- Sunset District
- Richmond District
- South of Market
- Castro
- Pacific Heights
- Bayview
- Potrero Hill
- Haight-Ashbury
- Marina District
- North Beach
- Russian Hill
- Nob Hill
- Hayes Valley
- Glen Park
- West Portal
- Excelsior
- Visitacion Valley
- Mission Bay
- Dogpatch
- Daly City
- South San Francisco
- Brisbane
- Pacifica
San Francisco customer reviews
5.0 stars from 76 San Francisco, CA customers
Homeowners, landlords and contractors in San Francisco who needed a certified answer fast. Part of 76 five-star reviews across the ClearGuard Environmental network.
5.0
76 reviews
- 5 out of 5 stars
Explained our options honestly
Positive on the mastic. They walked me through encapsulation as an alternative to full removal.
Priscilla V. · San Francisco ·
- 5 out of 5 stars
Solid, professional
Nothing flashy, just competent work and a clean report on time.
Bryan T. · San Francisco ·
- 5 out of 5 stars
New construction next to an old build
Tested the original structure before the addition tie-in. Saved us a very bad surprise.
Naomi S. · San Francisco ·
- 5 out of 5 stars
Farmhouse remodel
Old plaster and pipe insulation. They understood the era and knew exactly where to look.
Franklin O. · San Francisco ·
- 5 out of 5 stars
Fast even out here
Well north of the metro and they still made a same-week appointment work.
Krista D. · San Francisco ·
- 5 out of 5 stars
Thorough walkthrough
He walked the whole scope with my contractor before deciding what to sample. Very collaborative.
Elliot R. · San Francisco ·
San Francisco questions before booking
- Where is your San Francisco office?
- 580 California St, Suite 1200, San Francisco, CA 94104, reachable on (415) 592-6414. Samplers run daily routes from there across every neighbourhood.
- Does San Francisco require an asbestos test before renovation?
- BAAQMD Regulation 11, Rule 2 requires suspect material to be identified by laboratory analysis before regulated renovation or demolition, and the Department of Building Inspection expects the written result on file. We deliver that lab report — we do not prepare permits or perform removal.
- How fast can someone reach a San Francisco address?
- Usually same day for requests placed early, otherwise the next morning. The written accredited lab result follows within 24 hours, with optional 4–8 hour expedited handling for $99 more.
- What does an asbestos test cost in San Francisco?
- Asbestos testing starts at $475 flat, and the CLEAR50 coupon takes $50 off. Mold testing is $395, lead paint $425 and indoor air quality $445.
- Can you test an occupied flat or rent-controlled building?
- Yes. Sampling is wet-method and contained, every point is photographed and patched before the sampler leaves, and visits are scheduled around tenant notice periods.