The 3 best-rated air quality testing in San Francisco, CA average 4.9★ on Google across 456 reviews. California Healthy Home Inspections & Remediation Inc. has the top rating (5.0★). Updated October 26, 2026.
3 companies that meet our bar: rated 4.5★ or higher on Google, with a meaningful review history (456 reviews combined) and currently operating. Request a call back and the company will phone you directly.
“I deeply appreciate an honest business and this is one. We called to have someone come give us a quote for a leak issue that we experienced and they talked us through it - ultimately saying we had already taken the…” — Google review
“Replied promptly and had an inspector out the next day. The report came back quickly after that and they helped me find contractors to remediate the issue.” — Google review
“Carl is very informative, knowledgeable, patient, and professional. He picks up the phone promptly, answers all questions clearly, and provides fast, on‑time service exactly as scheduled. The pricing is transparent…” — Google review
We scan Google Maps for air quality tester listings in and around San Francisco, keep only open businesses whose main category matches the service, and require a Google rating of at least 4.5 from at least 20 reviews. Companies are ordered by a confidence-weighted score that balances rating and review volume. We do not accept payment for placement.
California Healthy Home Inspections & Remediation Inc. has the highest Google rating on our San Francisco list: 5.0 out of 5 from 320 reviews (as of October 26, 2026).
California Healthy Home Inspections & Remediation Inc. has the most Google reviews among the companies listed here: 320, with a 5.0★ average.
Only open San Francisco-area businesses whose Google category matches the service, rated at least 4.5★ from at least 20 Google reviews. They are ordered by a confidence-weighted score of rating and review volume. Placement is never paid.
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