Los Angeles is known for sunshine, but mold is still a common problem. Coastal fog, hidden plumbing leaks in older homes, winter storms and bathrooms without good ventilation all give mold the moisture it needs. Because much of it grows out of sight, it often goes unnoticed until the smell gives it away.
Sifixit is a free referral service. Call the number on this page and you will be connected with an independent mold removal provider that serves the Los Angeles area, where one is available for your ZIP code. Calling costs nothing and you are never obliged to hire anyone.
Why mold grows in Los Angeles
Coastal humidity
Neighborhoods near the coast, such as Venice, San Pedro and the Westside, often sit under a damp marine layer, especially in late spring and early summer. Poorly ventilated rooms can stay damp for long periods.
Hidden plumbing leaks
Many Los Angeles homes and apartments were built decades ago, and aging pipes can leak slowly inside walls and under floors, feeding mold for months.
Bathrooms and kitchens
Showers, cooking and older exhaust fans that do not vent outside keep bathrooms and kitchens humid, which is where mold most often starts.
Winter storms and roof leaks
Heavy winter rain can find its way through flat roofs, windows and walls, and water that is not dried quickly can turn into mold.

Areas across Los Angeles
Sifixit connects callers across the city of Los Angeles, including neighborhoods such as Hollywood, Silver Lake, Echo Park, Westwood, Venice, Van Nuys, North Hollywood and San Pedro, and in nearby cities such as Glendale, Burbank, Pasadena, Santa Monica, Culver City, Inglewood and Long Beach.
Sifixit does not have an office or staff in Los Angeles. Providers you speak to are independent local businesses, and availability depends on your ZIP code and the job.

Permits and local rules
Cleanup itself does not usually need a permit, but the repairs that follow often do. Inside the city of Los Angeles, larger drywall, electrical and plumbing repairs can require permits from the Los Angeles Department of Building and Safety. Homes in other cities, such as Glendale, Pasadena or Santa Monica, follow the rules of that city or county.
In California, most construction and repair work above a small dollar amount must be done by a contractor licensed by the Contractors State License Board. You can check a license on the board’s website.
Seasonal risks in Los Angeles
If anyone in the home has asthma, a weak immune system or breathing problems, keep them away from the moldy area and speak to a doctor about any symptoms.
- Late spring and early summer: marine layer humidity is highest near the coast.
- November to March: rain can cause roof and window leaks.
- After wildfires: water used to fight fires can lead to mold if homes are not dried.
- All year: slow plumbing leaks can feed hidden mold.
Be prepared
- Run bathroom fans during and after showers, and make sure they vent outside
- Fix drips under sinks and around toilets quickly
- Keep indoor humidity low with ventilation or a dehumidifier
- Check window sills and closets on outside walls for condensation
- Have leaks after winter storms dried properly, not just wiped up

Learn more before you call
Our main mold removal guide explains the warning signs, what affects the cost, what you can safely handle yourself and the questions to ask before you hire. It applies in Los Angeles just as it does everywhere else.
Los Angeles questions
Is there a mold license in California?
California does not have a separate state license for mold removal. Construction work to replace drywall or other materials usually needs a contractor licensed by the Contractors State License Board.
I rent. Who is responsible for mold?
California law treats visible mold that affects health and safety as a housing problem, and landlords must fix substandard conditions. Tell your landlord in writing. The Los Angeles Housing Department handles code enforcement for many rental homes in the city.
Do I need mold testing?
Usually not if you can see the mold. Testing helps find hidden mold or confirm that removal worked.
Does Sifixit have an office in Los Angeles?
No. Sifixit is a referral service. Providers you speak to are independent local businesses that serve the Los Angeles area.
Sifixit is a free referral service and does not provide home services. Calls may be answered by a partner call center or connected directly to independent local providers, who are solely responsible for their work, pricing, licensing and insurance.