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Find Mold & toxic material testers in Los Angeles

Avatar for 911 Certified Mold Testing LLC
911 Certified Mold Testing LLC
5.0(
8
)

Serving Los Angeles, CA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Kayla is so wonderful to work with. She is so professional and knows her stuff. Iâ ve used her in 2 projects already and my clients and I are extremely satisfied with her service. Her turn around mold air testing is fast. I will definitely recommend her and will continue to use her service."
Response time4 hrs
Response rate93%
Recommended by87%of homeowners
Avatar for Mold Dwelling Testing
Mold Dwelling Testing
New to Angi

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job\n

Avatar for Bio Safe Air
Bio Safe Air
New to Angi

Serving Los Angeles, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

We take pride in delivering expert mold testing with accuracy, professionalism, and top-quality service. Our certified team is committed to identifying mold issues quickly and clearly, helping you protect your home or business with confidence.\n\nOur reputation is built on reliability, safety, and honest results—no matter the size of the job.\nNot sure if you have mold? We offer a free consultation to help you understand your situation and make the right decision before it becomes a bigger problem.

Mold behind walls
Mold inside home
23 neighbors recently requested a quote
Avatar for Restoration Hunter
Restoration Hunter
5.0(
2
)

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"He was friendly, very professional, and answered all my questions clearly about how mold happens in a home. His reasonable estimate and scope of work. What are the steps for mold remediation? Furthermore, I had delicate items around the work area. He was very successful in making sure that nothing was damaged. "Think floor demolition in a China shop" where none of the dishes gets broken. I highly recommend restoration Hunter if you have to deal with mold in the home."
3 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for mold & toxic material test projects in Los Angeles, CA

Some companies offer a no‑cost phone or video consultation that screens for red flags. If the discussion points to a real issue, the pro will recommend a paid on‑site inspection. The complimentary call clarifies whether you need full testing, but it isn’t a substitute for samples, lab work, or a written report. Always confirm what the free service covers before you schedule.

A standard inspection, which includes basic air and surface samples, takes an average of two hours. If the pro needs to probe hidden spaces, such as wall cavities or ductwork, plan on up to six hours. Extra time allows the inspector to reach tight areas, collect additional samples, and document findings. Lab analysis is a separate process and often adds several business days to the overall timeframe before you receive the full report.

Mold thrives where moisture lingers and air flow is poor. Common hotspots include bathroom walls, kitchen backsplashes, window sills, HVAC vents, fireplaces, crawl spaces, and enclosed attics. Check these areas regularly—especially after leaks or high‑humidity weather—to catch growth early and avoid costly repairs.

Unchecked mold can knock 20% to 37% off a home’s market value because buyers worry about hidden damage and health risks. Even after remediation, visible staining or a history of major moisture issues can still lower offers and prolong the time on the market. Addressing mold quickly protects both your property’s structural integrity and its resale appeal.

The Los Angeles, CA homeowners’ guide to mold & toxic material tests

From average costs to expert advice, get all the answers you need to get your job done.