📍 Orange County, CA

Mold Testing in Orange County

Independent mold swab and indoor air quality testing for homes, condos, rentals and businesses across Orange County — with lab-verified results and simple, published pricing.

📞 Call (310) 999-8772 Book an Inspection

Orange County mold testing prices

First sample$399Swab or air sample, on-site visit, accredited lab analysis

Each additional sample$179Same visit — test more rooms or areas

Example: 3 samples in one visit = $757 total. We’ll recommend the fewest samples that answer your question and quote your exact total before we come out.

Why Orange County homes get mold

Mold needs moisture. In Orange County, the most common sources we’re asked to check include:

Coastal humidity. Homes near the coast — Huntington Beach, Newport Beach, Laguna Beach, Dana Point — often deal with damp marine air and condensation on windows, closets and bathrooms.
Plumbing and slab leaks. Slow leaks under sinks, behind walls or under floors can go unnoticed for weeks.
Roof and window leaks after winter storms.
Condos and shared walls. A leak in a neighboring unit can spread moisture into yours — common in HOA communities in Irvine, Tustin, Costa Mesa and Mission Viejo.
HVAC and attic issues such as condensation lines and poor ventilation.

What we test

Surface swab testing

Tells you what’s growing on a specific spot — a stain on a ceiling, a dark patch on drywall, a spot under the sink. The lab identifies the mold types present.

Indoor air quality testing

Measures mold spores in the air and compares them with an outdoor sample taken at the same time, to find hidden mold behind walls, under floors or in the HVAC system.

When Orange County clients call us

A musty smell with no visible source
After a leak, flood or water damage
Before buying or selling a home or condo
Renters and landlords who need independent, documented results
After mold remediation, to confirm the air is back to normal

We only do testing — we don’t sell mold removal — so there’s no conflict of interest in your results.

Orange County cities we serve

Irvine
Anaheim
Santa Ana
Huntington Beach
Newport Beach
Costa Mesa
Orange
Fullerton
Garden Grove
Tustin
Mission Viejo
Laguna Beach
Laguna Niguel
Lake Forest
Yorba Linda
Buena Park
Westminster
Fountain Valley
San Clemente
Dana Point

Don’t see your city? If it’s in Orange County, we cover it. We also serve all of Los Angeles County.

Orange County mold testing FAQ

How much does mold testing cost in Orange County?

$399 for the first sample and $179 for each additional sample collected during the same visit. Most homes need one to three samples.

How long do results take?

Sampling takes about 30–60 minutes on-site. Lab results are typically ready 2–5 business days after the samples reach the lab.

Do I need testing if I can already see mold?

Not always — the first step is fixing the moisture source. Testing helps when you want to know what type of mold it is, whether it has affected the air, or when you need documentation for a landlord, buyer, seller or insurance claim.

Can you test a condo or apartment?

Yes. We test condos, apartments and rental homes for both tenants and owners, and your report is easy to share with an HOA, landlord or property manager.

📞 Call (310) 999-8772 Book an Inspection