Signs of Hidden Mold in Your Home
The signs of hidden mold behind walls, under floors and in attics: musty odor, stains, bubbling paint, warped trim and recurring leaks, and what each one means.
Guides
Mold Guides
Plain-English guides to finding, understanding and dealing with mold in Los Angeles homes and buildings.
Finding mold
Mold Inspection vs Mold Testing
Mold inspection finds the moisture source and the extent of growth. Mold testing samples air or surfaces for a lab. What each answers, and when you need it.
What Is Black Mold?
What people mean by black mold, why color doesn't tell you how risky a mold is, how to tell mold from dirt or mildew, and what to do when you find dark growth.
Marine Layer, Coastal Humidity and Mold
Why homes near the coast get musty closets and mold on exterior walls, how the marine layer adds moisture, and simple ways to keep humidity down. Call 24/7.
Remediation and cost
Mold Remediation Cost: What You're Paying For
What a mold remediation quote actually covers: containment, air filtration, removal, disposal, cleaning, clearance and rebuild, and how to read the line items.
What to Expect During Mold Remediation
What happens during mold remediation from the first visit to clearance: containment, air scrubbers, removal, cleaning and testing, and how to prep your home.
How Long Does Mold Remediation Take?
Typical mold remediation timelines in days, from a small bathroom job to a whole wall or attic, and what stretches them: containment, drying, labs, rebuild.
Post-Remediation Clearance Testing Explained
What post-remediation clearance testing checks, how visual checks, moisture readings and air or surface samples work together, and what if it fails. Call 24/7.
Why Bleach Doesn't Fix a Mold Problem
Bleach can lighten mold stains on hard surfaces, but it doesn't fix the moisture or reach growth inside drywall and wood. What actually removes a mold problem.
Leaks and water
Mold After a Roof Leak
After a roof leak, mold can start in the attic, insulation and ceiling long before a stain shows. What to check after a Los Angeles storm, and when to get help.
Preventing Mold After a Leak: The First 48 Hours
What to do in the first 24 to 48 hours after a leak to keep mold from starting: stop the water, dry fast, remove wet materials, skip common mistakes. Call 24/7.
Around the building
Preventing Bathroom Mold: Ventilation, Caulk and Habits
How to keep bathroom mold from coming back: exhaust fan sizing and run time, caulk and grout upkeep, drying habits and the hidden leaks to check. Call 24/7.
What Causes Attic Mold?
Attic mold comes from moisture that can't escape: roof leaks, poor ventilation, bath fans venting into the attic and AC condensation. What to check. Call 24/7.
Mold in Air Ducts: Signs and What to Do
Musty air when the AC runs, dark spots on vents, water at the air handler: how to tell if mold is in your ducts and what actually fixes it. Call 24/7.
Crawl Space Moisture in Raised-Foundation Homes
Why crawl spaces under raised-foundation homes get damp, the warning signs above the floor, and the drainage, venting and repairs that keep them dry. Call 24/7.
Mold in Apartments and Rentals: A Practical Guide
Mold in a rental: how tenants and owners can document and report it, arrange access, fix the source and coordinate cleanup in a shared building. Call 24/7.
Dealing with mold right now?
Talk to a mold remediation specialist
If this guide sounds like what's happening in your home or building, call us and we'll talk it through. You can also read how we handle mold remediation.
Phone answered 24 hours a day, 7 days a week