Mold removal
Mold remediation in San Francisco, CA
Mold remediation removes mold growth under containment so spores don't spread, cleans or discards affected materials, and corrects the moisture problem that let it grow. Several states, including Texas, Florida, Louisiana and New York, license mold remediation, so check your state's rules.
Mold remediation in San Francisco: local conditions
Partner coverage for mold removal in San Francisco currently includes 1 ZIP code: 94128. If your ZIP is on this list, a call connects you with a company that serves it.
Persistent fog in the Sunset and Richmond keeps homes damp, encouraging mold.
Victorians and Edwardians have plaster walls, original wood and older plumbing, while Sunset and Richmond row houses share walls and often have ground-floor garages converted to living space. Many homes have been divided into flats or have added in-law units, so leaks often affect more than one household.
Licensing in California: California requires contractors on jobs of $500 or more (labor and materials) to be licensed by the Contractors State License Board (CSLB). Check the license on the CSLB website.
What you can expect
- One call connects you with an independent restoration company that serves your ZIP code.
- Fast call-back during business hours
- Serving San Francisco, CA
- Photo and moisture documentation for insurance
Mold remediation at a glance
- Category
- Mold removal
- Emergency service
- Scheduled visit
- Typical first step
- Assessment
- Area
- San Francisco, CA
Other risks in San Francisco
Winter storms and leaks
Atmospheric river storms, like the 2022–23 series, cause roof leaks and flood low-lying streets.
Earthquakes
Earthquakes can break pipes and water heaters; the 1989 Loma Prieta quake damaged buildings across the city.
Street-level units
Garages and in-law units below street level take on water during heavy rain.
Older plumbing
Victorian and Edwardian homes often have aging galvanized supply lines and cast-iron drains.
Signs you need mold remediation
- Visible black, green or white growth on drywall, baseboards or wood
- A musty odor in a closet, bathroom or HVAC closet
- Recurring condensation on AC vents or ducts
How the work is done
Assessment, then Containment, then Removal and cleaning, then Clearance. See the full mold remediation process.
What affects the cost
Prices depend on the job, so restoration companies in San Francisco quote after an assessment. The main drivers are how much area is affected, how long it stayed wet, and what has to be removed or rebuilt. See the full list of mold remediation cost factors.
Mold remediation questions
Do I need a permit for repairs in San Francisco?
Structural, plumbing and electrical repairs need permits from the San Francisco Department of Building Inspection.
How do I verify a California contractor?
Search the Contractors State License Board (CSLB) license lookup.
Do I need a licensed company for mold removal?
It depends on your state. Texas, Florida, Louisiana and New York license mold remediation above set sizes. In other states, look for IICRC-certified remediators, insurance and a written scope.
Does bleach kill mold?
Bleach can whiten mold on hard, non-porous surfaces, but it doesn't penetrate drywall or wood and adds moisture. Removal and cleaning, plus fixing the moisture, is the reliable fix.
Related pages
Other services in San Francisco
Mold remediation in nearby cities
More about water and storm damage in San Francisco, or see mold remediation nationwide.
Related services
Mold inspection & testing
A mold inspection looks for visible growth, hidden moisture and the conditions causing it, using moisture meters, thermal imaging and, when useful, air or surface samples.
Learn more
Attic mold removal
Attic mold usually grows on roof decking from condensation, poor ventilation, bathroom fans vented into the attic, or roof and AC leaks.
Learn moreStructural drying
Structural drying removes moisture that has soaked into walls, framing, subfloors and cabinets after the visible water is gone.
Learn moreWater, mold or fire damage? Get the right crew on it.
One call connects you with an independent restoration company that serves your ZIP code. Fast call-back during business hours.