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Find Mold & toxic material testers in San Jose

Avatar for Mold Remedies
Mold Remedies
4.4(
30
)

Serving San Jose, CA and surrounding areas

Approved

In business since 2002

Credit card accepted

Customers say: Super punctual

"Incredibly smart pro, learned a ton from the visit and I think we found valuable information about our property from the results of the tests conducted."
Areas of concern
 Dry Rot
Polluted Air
Clean air
We can make it happen

+15

Response time2 days
2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Mold Test Company Central CA
Mold Test Company Central CA
4.0(
88
)

Serving San Jose, CA and surrounding areas

Approved

In business since 2015

Emergency services offered

Small jobs welcome

"The inspector was professional and thorough. The report was timely and the company's representative called me to explain the results of the test. I've emailed him to request clarifications and am awaiting his reply. The only negative thing is that after our telephone conversation he transferred me to a 3rd party company who markets mold removal services. The rep there tried to sell me his product. I didn't buy it yet."
Attic Ceiling
Drywall
Drywall
Insulation
Insulation

+66

Response time10 hrs
247 neighbors recently requested a quote
Recommended by87%of homeowners
RC Janitorial Restoration
3.8(
4
)

Serving San Jose, CA and surrounding areas

Approved

In business since 1975

Free estimates

Customers say: True professional

"bloodtestcentersusa.com offers direct-access lab testing services for individuals without insurance or a doctor’s order. We provide access to thousands of Labcorp and Quest Diagnostics locations nationwide. Schedule tests online, choose your nearest lab, and get quick, secure results. Affordable pricing. Complete confidentiality."
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+12

8 neighbors recently requested a quote
Recommended by100%of homeowners
Z-CON Specialty Services, Inc.
New to Angi

Serving San Jose, CA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

A1 Certified Environmental
4.6(
422
)

Serving San Jose, CA and surrounding areas

In business since 2003

Credit card accepted

"Professional, organized, oriented to the details, on time, courteous, established in his field of expertise and driven by facts - Carl is the person I would always relay on to help me if there is any need for the mold inspection. He saved me thousands of dollars with his prompt tests after several crews tried to charge me for non-existing problems. Thanks Carl four your dedication to your clients and helping our community! I appreciate it very much."
Visible signs under sink
Damp crawlspace
Peeling paint (ceiling)
Air sampling
Response time3 hrs
Recommended by92%of homeowners
Avatar for Certified-Environmental
Certified-Environmental
4.6(
167
)

Serving San Jose, CA and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"Richard is an amazing mold specialist who took care to thoroughly inspect my apartment ahead of my DoD sponsored move. He took care to ensure that my moving company received more than adequate proof and documentation that my belongings were free and clear of mold in an apartment complex that is highly susceptible to it, here in Monterey. I would highly recommend his services to those who require the highest expertise in mold inspection, testing and mitigation. Thank you so much!"
Rich Gray
Allergies
Heating System
Bed Bug
Dust Mite

+5

Recommended by87%of homeowners
Avatar for Supraclean Water Damage Specialists
Supraclean Water Damage Specialists
4.6(
39
)

Serving San Jose, CA and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"I contacted about a half dozen firms.  We obtained three estimates and Supraclean was the most courteous, professional, knowledgable and thorough in handling the estimate.  Their prices were competitve with the other estimates.  They also did not charge for the estimate which was nice as most of these firms do charge about $200 for an estimate on water/mold damage.  They showed up on time, did the work as promised, cleaned up their workspace every day and were responsive to my many questions.  I crawled under the house to see the after (I only saw the before through the plumber pictures) and the foundation was nice and clean and dry.   We would definitely hire them again."
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Recommended by100%of homeowners
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FAQs for mold & toxic material test projects in San Jose, 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 Jose, 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.