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Top-Rated Mold & toxic material testers in San Diego - Updated Nov 2026

Avatar for Express Dry
Express Dry
5.0(
12
)
Mold & Toxic Material Test

Serving San Diego, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Noah was very helpful and understanding. I've never had an emergency issue like this, so it was nice to be reassured that they were going to handle it. They worked with me and answered all of my questions and concerns. I'm very happy with the work that was done."
Additional Photos
Additional Photos
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+9

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for San Diego Abatement Services
San Diego Abatement Services
4.5(
41
)
Mold & Toxic Material Test

Serving San Diego, CA and surrounding areas

Approved

In business since 1985

Emergency services offered

Warranties offered

"In the middle of having my flooring installed, we discovered that I had asbestos in my kitchen and bathroom- the flooring installers walked out of the job immediately. I had 3 companies come and give me bids. San Diego Abatement Services was the most professional and knowledgeable. They scheduled the job the day after I called. They were polite, efficient, and did exactly what they promised to do. They were not the least expensive- but my confidence in a perfect job and the safety of my home was more important. They sent me the certificate of a clean air test so I can now finish my floors!"
Exterior Painting
Before - Acoustic Ceiling
After - Scraped & Textured
Asbestos Removal
Lead Removal Services

+2

Response time2 days
Response rate100%
1 neighbors recently requested a quote
Avatar for 1-800 WATER DAMAGE of Poway/Del Mar
1-800 WATER DAMAGE of Poway/Del Mar
5.0(
7
)
Mold & Toxic Material Test

Serving San Diego, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

1-800 Water Damage of Poway / Del Mar services:\nWater & Flood Damage Restoration\n Water Removal & Extraction\n Flood Damage Restoration\n Pipe Burst Repair\n Commercial Water Damage\n\nFire & Smoke Damage\n Electrical Fire\n Kitchen Fire\n Housefires\n Wildfire\n\nSewage Cleanup\n Sewage Backup Cleanup\n Septic Tank Failure Cleanup\n Toilet Overflow Cleanup\n Odor Removal\n\nMold Damage\n Mold Removal & Remediation\n\nCommercial Restoration Services

General Photos
General Photos
General Photos
General Photos
General Photos

+6

Response time7 hrs
Response rate100%
17 neighbors recently requested a quote
Avatar for JMR Environmental Services Inc
JMR Environmental Services Inc
4.9(
7
)
Mold & Toxic Material Test

Serving San Diego, CA and surrounding areas

Approved

In business since 1999

Free estimates

Small jobs welcome

"I brought asbestos samples to be tested and chose the 5 days option. Someone called me on the 5th day exactly like they said. I'm glad this company also offered to go to the home and take samples for me. The only downfall was that their office was a little bit difficult to find but after a couple U-turns I found it!"
Response time1 day
Recommended by100%of homeowners
Avatar for All Dry Services of East & South San Diego
All Dry Services of East & South San Diego
New to Angi
Mold & Toxic Material Test

Serving San Diego, CA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

If your home or business has recently experienced a disaster or are in need of cleanup, there's already a lot on your mind. Cleaning up the mess and bringing your property back to its pre-damaged condition shouldn't be another thing you need to worry about. \n \nSince 2014, All Dry Services has been dedicated to helping homeowners and business owners who are dealing with the aftermath of disasters. We care about your property and our goal is to leave your home better than we found it — and even better than its original condition.

Avatar for Pacific Rim Eco
Pacific Rim Eco
5.0(
11
)
Mold & Toxic Material Test

Serving San Diego, CA and surrounding areas

Free estimates

Emergency services offered

Small jobs welcome

"Dan was ready to assist when I contacted him. He was thorough, and his credentials and knowledge are impressive. He explained everything clearly, completed the testing, and provided a detailed report. When my landlord questioned the report, Dan quickly clarified his findings to prevent misinterpretation. What I appreciated most was his objectivity. I wanted accurate information, not someone to simply agree with me. He even corrected me when my understanding was wrong, which strengthened my trust in his judgment. His interactions with my landlord and remediation company were professional, educational, and appropriately firm about what the results indicated needed to happen. His guidance helped me understand my situation and advocate for a safe and habitable living environment. I am incredibly grateful to have worked with Dan and Pacific Rim Eco. I recommend them without hesitation to anyone needing a knowledgeable, thorough, objective, and trustworthy environmental professional."
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FAQs for mold & toxic material test projects in San Diego, 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 San Diego, 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.