San Francisco County · Bay Area
Mold Air Quality Testing in San Francisco, CA
Indoor air sampling for mold spores with an outdoor control sample, plus moisture readings, analyzed by an accredited lab so you know whether indoor levels are elevated.
Quick answer
ClearPoint Environmental offers mold air quality testing in San Francisco, CA: indoor air samples compared with an outdoor control, analyzed by an accredited lab with results in 24–48 hours. Quotes start at $475 with CLEAR50 applied, +$55 per additional sample. We never sell remediation.
- From $475 with CLEAR50 ($50 off) applied · $475–$625 by scope · +$55 per additional sample
- Same-day or next-day visit · lab results in 24–48 hours
- Testing is all we do. We never quote, sell or perform removal — our only job is an honest result.
Request a tester
Where is the property?
All of California · no account, no card. You see the price before anything is booked.
Mold Air Quality Testing in San Francisco: what's different here
Local homes
Characterized by dense urban living, including famous Victorian 'Painted Ladies,' Edwardian flats, and post-war row houses. The city has one of the oldest average housing stocks in California.
What we see in San Francisco
The famous maritime fog and high salt air moisture frequently lead to condensation and mold growth in older buildings. Poor airflow in tightly packed urban structures can exacerbate dampness.
Neighborhoods we visit often: Richmond District, Sunset District, Pacific Heights, Noe Valley, and every other part of San Francisco and San Francisco County.
When you need mold air quality testing
- A musty smell with no visible mold
- After a leak, flood or storm water got into walls, floors or a crawlspace
- Allergy or breathing symptoms that ease when you leave the home
- Before buying, renting or re-occupying a space, or after remediation (clearance testing)
What your report includes
- • Spore counts per room and outdoors
- • Mold types found (for example Aspergillus/Penicillium, Stachybotrys)
- • Moisture readings and photos
- • What the numbers mean and next steps
How it works
- 1
Book
Enter your address, choose Mold air quality test and see your price.
- 2
Inspect
The sampler checks moisture and takes indoor air samples plus an outdoor control.
- 3
Lab
An accredited lab counts and identifies spores on each sample.
- 4
Report
You get spore counts by room compared with outdoors, in plain English.
Serving San Francisco, CA
ClearPoint Environmental San Francisco
55 Francisco StSan Francisco, CA 94133(415) 653-3566
Monday–Sunday · Open 24 hours
Get directionsFAQ
Mold Air Quality Testing in San Francisco: questions
How much does mold air quality testing cost in San Francisco?
From $475 with CLEAR50 ($50 off) applied · $475–$625 by scope · +$55 per additional sample. The price is shown before anyone is dispatched.
How fast can you test in San Francisco?
Same-day or next-day visit · lab results in 24–48 hours. Call (415) 653-3566 for the earliest window.
Which office serves San Francisco?
ClearPoint Environmental San Francisco, 55 Francisco St, San Francisco, CA 94133, (415) 653-3566. We cover every neighborhood in San Francisco County.
Do you do mold remediation?
No. We only test, so we never profit from telling you there is a problem. Our clearance tests also check remediators' work independently.
How long do mold results take?
Lab results normally arrive in 24–48 hours after the visit.
Mold Air Quality Testing by city
Bay Area
More of California
Guides and articles
Quick answers
- How much does professional mold testing cost in California?
- How long does it take to get mold air quality results?
- When is mold testing necessary for a home or office?
- What do the numbers in a mold testing report mean?
- What are the rights of California renters regarding mold?
- Should I get a mold inspection before buying a house?
Customer reviews
Rated 5.0 out of 5 by California customers
119 verified reviews from homeowners, property managers, contractors and insurance adjusters who needed certified answers fast.
5.0
119 reviews
- 5 out of 5 stars
Victorian plaster tested
Three layers of old plaster, each reported separately. Really helpful for planning the rewire.
Naomi B. · San Francisco ·
- 5 out of 5 stars
Booked online in minutes
Typed my address, picked a time and a sampler showed up that afternoon.
Wes K. · Elk Grove ·
- 5 out of 5 stars
Independent, which I wanted
I liked that they don't do removal. The result felt trustworthy, not a sales setup.
Tara D. · Berkeley ·
- 5 out of 5 stars
Rental turnover handled
Two units, one visit, two separate reports. Exactly what my property file needed.
Luis M. · Stockton ·