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Find Mold & toxic material testers in San Rafael

Avatar for Moisture & Restoration Consultants, LLC
Moisture & Restoration Consultants, LLC
4.8(
59
)

Serving San Rafael, CA and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"Mr. Osborn was very prompt in inspecting our water intrusion problems and testing for mold. We received the results of the testing within a short time and he made specific recommendations for correcting all of our issues. We appreciate his help very much."
Mold Remediation Project
Master Bathroom
Master Bathroom
Hall Bathroom
Hall Bathroom

+27

Response time10 hrs
14 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Mold Remedies
Mold Remedies
4.4(
30
)

Serving San Rafael, CA and surrounding areas

Approved

In business since 2002

Credit card accepted

Customers say: Super punctual

"These guys were professional, knew exactly where the mold was coming from and how to remove it. They were timely and did a great job!"
Areas of concern
 Dry Rot
Polluted Air
Clean air
We can make it happen

+15

Response time2 days
5 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 Rafael, 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
199 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Bio 911
Bio 911
4.9(
92
)

Serving San Rafael, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Easy and fast communication. Business owner came out quickly per our request, and tested the air quality in an around our home, and did mold testing. He was speedy and kind; very informative of what he was doing and what he would be looking for. Gave us his thoughts and recommendations on what we saw visually, and then put the tests in to the laboratory same day. Results came back within 3 days. I highly recommend them for your mold and air testing needs!"
Mold under window
mold on concrete foundation
after treatment
after remediation
Hoarding cleanup

+18

Response time5 hrs
Response rate98%
1 neighbors recently requested a quote
Avatar for Sherlock Homes and Mold Inspection
Sherlock Homes and Mold Inspection
4.5(
20
)

Serving San Rafael, CA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"As a family with several health issues due to mostly unseen mold, Steve was an invaluable resource in helping us to navigate making some really complicated decisions. He was thorough, honest, upfront and truly concerned with our kidâ s well being. He went above and beyond - couldnâ t recommend highly enough."
Air Quality Pump
Mold Sample
Dr. Watson
ERMI Scale
Response time7 hrs
17 neighbors recently requested a quote
Recommended by94%of homeowners
Insight Environmental
5.0(
16
)

Serving San Rafael, CA and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"As a first time home buyer, Steve Ramos of Envirovue was effieciently thorough and quite informative. He prefaced me on major concerns along the way equiping me with tangible insite to aide in my negoiation with the seller. Thank you for for sending me a REAL pro!"
Response time7 hrs
7 neighbors recently requested a quote
Recommended by18%of homeowners
Avatar for Tocchini Builders Inc.
Tocchini Builders Inc.
3.7(
130
)

Serving San Rafael, CA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"I recently used Kramer’s Home Improvements for a huge job. I called last minute to assess water damage and remove popcorn ceiling in my 3 year old son’s room. I called them in the late afternoon and asked if they could come that very day. Leo the owner went out of his way to make room in their schedule to accommodate me and made the appt for 5:30 that evening. Which is totally unheard of! Immediately Leo recognized the mold in the drywall and stated that this needed attention urgently. His lead guy Kenny and Jon came out to do the job of removing popcorn. They were totally professional and did such an amazing job. Clearly Kenny knew what he was doing and they worked swiftly and even vacuumed the room and took all the popcorn away before they left. I still have drywall work to do and unfortunately i have to go through the HOA to get it done because I’m sure that it could have been done by now though Kramer’s which would have been ideal. I cannot tell you how thrilled I am with this company. They went above and beyond for me because I was in a jam. I will be using them for more projects soon. Thank you Leo and Kenny….and Jon!"
4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for California Healthy Home Inspections & Remediation, Inc.
California Healthy Home Inspections & Remediation, Inc.
4.8(
34
)

Serving San Rafael, CA and surrounding areas

In business since 2020

Small jobs welcome

Credit card accepted

"I was very impressed with Zem personally. He is very caring, thoughtful, prompt, and courteous. Professionally he is extremely knowledgeable and took the time necessary to test and examine my entire home to detect and resolve my toxic mold issue. My test results came in, and I was contacted immediately. He will be explaining the report to me in detail and will help me work out a protocol remediation plan to remove the mold and help me move back into my home. An update, Zem did an excellent job of remediating my home, the tests came back normal. I recently had contractors in to repair walls and paint. In doing so they broke a pipe under my kitchen sink. A significant amount of water came into the under cabinet area and onto the floor. The contractors cleaned up the water and used fans, but after one week it was apparent that moisture was still present water damage had occurred. I called Zem, he immediately came over tested the floor and air for moisture and ran mold tests. We will know shortly the results. His swift response, understanding of the urgency of this situation and calming reassuring demeanor put me at ease. Truly he is a caring professional who stands by his customers to make sure their homes are safe. I am truly thankful to have him at moments such as these."
Hidden Mold
Mold in the air
TEM & AHERA Testing
Psychometrics
AHERA  Clearance Test

+1

Response time3 hrs
Response rate90%
Recommended by89%of homeowners
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FAQs for mold & toxic material test projects in San Rafael, 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 Rafael, 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.