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TRUSTED BY COLMA, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon14
    Verified mold testing and remediation services reviews

Top-Rated Mold testing and remediation specialists in Colma - Updated Nov 2026

Avatar for Mold Test Company Central CA
Mold Test Company Central CA
4.0(
90
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Colma, CA and surrounding areas

Approved

In business since 2015

Emergency services offered

Small jobs welcome

"Henry came to our house. He was very knowledgeable about mold and what to look for. He answered all my questions and was very helpful. Peter who called me with the results was very nice and answered my questions. He even called back the next day when he noticed that an email he sent me didn t go through. They gave me a lot of information to help me continue my search to get rid of my mold and poor air flow."
Attic Ceiling
Drywall
Drywall
Insulation
Insulation

+66

Response time10 hrs
136 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Environmental Science Services
Environmental Science Services
4.5(
42
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Colma, CA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"I experienced a quality of knowledge as well as caring for my concerns about mold in my home. The problem was quickly resolved and the communication excellent. I was so pleased that traveling did not present a problem and I am so happy to feel a professional has handled a difficult problem and done that in a timely and knowledgeable manner. Thank you so much for the experience."
interior
IAQ
Clandestine Laboratory Investigation
Wipe Testing for Asbestos
Water Intrusion Mold Testing

+3

Response time8 hrs
10 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Colma, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We decided to remodel our outdated bathroom, and McCormick Home Builders was a fantastic choice. Khaled and the team delivered high-quality work within the timeline and our budget. Every detail, from the tile work to the lighting, was beautifully done. They communicated well throughout, keeping us informed at every step, and the end result was truly a spa-like bathroom we can enjoy daily. We’d love to work with them again!"
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+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for Quality Air Environmental Consulting, LLC
Quality Air Environmental Consulting, LLC
4.9(
10
)
Mold & Toxic Material Test - For Business

Serving Colma, CA and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quality work

"Brad immediately called me back and was able to schedule an appointment within a few days. He was very knowledgeable about the potential of lead contamination in our old house. Great customer service and was very clean. I highly recommend!"
Asbestos Testing in skyscraper
Private Residence Floor Survey
Response time1 day
Recommended by100%of homeowners
Avatar for Ovation Restoration, LLC
Ovation Restoration, LLC
4.2(
102
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Colma, CA and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Rick, the owner of Ovation put us instantly at ease. His suggestions led us to not only remodel our bathroom, but extend remodeling to the rest of our home. Our first meeting, and every interaction following with Rick's crew was positive. They came, they worked hard, always smiling and were very flexible towards our needs. We heard how much they thought of Rick and his wife Jessica, which only confirmed we made the right choice. Issues came up, which we didn't count on, and I'm embarrassed to admit Rick & Jessica were on the receiving end of my stress, but despite this, Rick always remained patient, and even Jessica called to reassure me she was working on it. In the end, my whole house was completely made over with new bathroom cabinets (including linen storage) flooring, doors, trim, molding and paint. The quality of our remodel has turned our home into an amazing staycation. We hope to have Rick & Jessica over for dinner, not only because Rick is a was, but because we want to show our gratitude"
Breathtaking solid slab granite countertops
Walk-in shower with sliding glass door
Handicap accessible with style
New lighting
Antique white custom cabinets

+133

Response time10 hrs
Response rate96%
1 neighbors recently requested a quote
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Mold Testing and Remediation FAQs, answered by experts

While the air inside your home should have some moisture—the ideal humidity level is between 30% and 50%—too much moisture can lead to issues. Some ways to tell if there’s too much moisture in your home include condensation inside your windows, mildew growth in the bathroom or mold on surfaces, peeling paint, or an uptick in allergy symptoms.

Certainly, DIY mold tests are not perfect when trying to determine whether you have a mold problem. They could give you a false positive reading, or they may fail to detect mold that’s behind a wall, especially if the infestation is still small. Ultimately, you should seek a mold inspection if the DIY test gives you a positive result, just to be certain. And if the test is inconclusive, it’s probably worth seeking an inspection from a pro.

The best way to measure moisture levels in drywall is with a moisture meter. Moisture meters feature small probes that you insert into drywall (similar to pushing a pin into the wall). Ideally, you'll take moisture readings at several locations on the wall to get a general idea of the moisture level.

Mold thrives in wet and humid conditions, and the bathroom can often be an ideal place for it to grow. If you are worried about mold, it's a good idea to hire a local mold inspector to inspect your bathroom. 

How you handle the mold depends on the extent of the issue. If it's on the caulk or other surface, a deep cleaning with mold-killing products such as vinegar or bleach may be sufficient. For a large infestation, you'll most likely need professional mold remediation.

A professional indoor air quality inspection takes anywhere from one to three hours, depending on the size of your home and the number of necessary samples. After the test, the specialist will discuss the findings, but you won’t get a full written report for 2 to 10 days, though you can ask your pro to expedite the process, if needed. 

The Colma, CA homeowners’ guide to mold testing and remediation services

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