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The 10 Best Mold Remediation Companies in San Francisco (2026)
San Francisco’s mix of Victorian homes, multiunit buildings, and a moist coastal climate makes mold and moisture a recurring concern for homeowners and landlords. This list highlights ten local mold remediation and water-damage specialists based on Google review data, updated for 2026. We ranked businesses using a Bayesian-style score that balances a company’s average rating with its number of reviews, so a handful of perfect scores doesn’t outweigh broad, consistent praise. The businesses here are those that rise to the top on Google in and around the city; use this guide as a starting point and pair it with inspections and written estimates before committing.
This ranking is computed from Google reviews (our method). Listings marked Partner are paid advertising spots: they sit alongside the ranking without changing its order.
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California Healthy Home Inspections & Remediation Inc.
California Healthy Home Inspections & Remediation Inc. tops our list thanks to a perfect 5.0 Google rating combined with a substantial review count — 318 reviews — which gives it strong standing under our weighting method. Google categorizes the company as a Water damage restoration service and its listed address is in Burlingame. That balance of flawless average score and significant review volume is why it ranks first in our 2026 update.
The full ranking
Bay Area Mold Pros
Bay Area Mold Pros holds a 5.0 rating based on 120 Google reviews and is categorized as a Home inspector in San Francisco (94115).
120 reviews
Fast Mold Testing – San Francisco Bay Area
Fast Mold Testing – San Francisco Bay Area appears with a 5.0 average from 82 Google reviews and is listed under Water damage restoration service in San Francisco (94115).
82 reviews
Reactic Restoration
63 reviews
MG Remediation
MG Remediation carries a 4.9 Google rating from 114 reviewers and is recorded as a Water damage restoration service in San Leandro.
114 reviews
Reactic Restoration
64 reviews
Paul Davis Restoration of San Francisco
Paul Davis Restoration of San Francisco has a 4.9 rating based on 61 Google reviews and its listing places it in South San Francisco as a Water damage restoration service.
61 reviews
SERVPRO of South San Francisco City/San Bruno
SERVPRO of South San Francisco City/San Bruno is rated 4.9 on Google with 45 reviews and is listed as a Water damage restoration service in South San Francisco.
45 reviews
GCD Restoration
GCD Restoration shows a 4.9 Google rating from 44 reviewers; Google lists it as a Water damage restoration service in Daly City.
44 reviews
Lincoln
Lincoln holds a 4.9 average from 19 Google reviews and is categorized as a Water damage restoration service in San Francisco (94110).
19 reviews
Frequently asked questions
How should I choose a mold remediation company in San Francisco?
Look for a contractor with relevant experience, clear written estimates, and proof of insurance. Ask whether they perform containment and moisture source identification, request references or recent job examples, and confirm any testing or clearance procedures they use.
What does mold remediation typically involve?
Remediation often starts with an inspection and moisture assessment, followed by containment, cleanup or removal of affected materials, drying, and measures to prevent recurrence. Many jobs also include recommendations for repairs or changes to reduce ongoing moisture.
What should I check before hiring a remediation firm?
Get at least two written estimates that outline scope, timeline, and what testing or clearance is included. Verify insurance coverage, ask about subcontractors, and make sure all agreed tasks are spelled out in writing before work begins.
How was this ranking created and updated?
This list is built from publicly available Google review data and updated for 2026. We used a Bayesian-style method that weights a business’s average rating by its number of reviews so that both score and review volume influence the ranking; it does not replace an on-site inspection.