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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 Moisture & Restoration Consultants, LLC
Moisture & Restoration Consultants, LLC
4.8(
61
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Colma, CA and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"Dave was super helpful and steered me toward the real solution I needed -- not testing but direct remediation of a leaking window and wall. His experience really helped get the job done and to calm my nerves after I discovered the leak!"
Mold Remediation Project
Master Bathroom
Master Bathroom
Hall Bathroom
Hall Bathroom

+27

Response time4 hrs
10 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Bio 911
Bio 911
4.9(
92
)
Mold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Colma, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Air / Mold testing done Very professional was able to come out the next morning for testing and results available 24-30 hrs later MrKirill Answered many of my questions prior to me even booking an appointment. After testing explain the results and what aftercare would be needed"
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 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

In most cases, cloudy tap water is safe to drink, as the cause is often harmless air bubbles. A simple test is to let a glass of water sit for a few minutes; if the cloudiness dissipates, it was likely just trapped air. However, you cannot be certain of the water's safety without knowing the cause or performing a water test. If the cloudiness is persistent, comes with yellow or brown discoloration, or is accompanied by plumbing issues, it may pose a health risk. In such cases, it is best to call a local plumber to find the cause.

Nearly all homes have at least some airborne mold spores. If you want to determine the concentration of spores in the air, you have a few options. The most effective option is to hire a professional tester who can take air samples of the home. The tester would send the samples to a laboratory to determine the concentration of mold spores. 

Areas of your home may provide an ideal environment for green or black mold. Most molds love moisture and will thrive in wet or damp areas. Some types of mold, such as Stachybotrys chartarum, grow well on materials commonly used in homes, such as gypsum board and wood. Mold may also grow in areas where there are leaks, such as in bathrooms, kitchens, or basements.

The flooring that is the least toxic is solid wood. Natural linoleum, tile, stone, bamboo, and cork flooring also make the list of least-toxic flooring types. These flooring materials are safer and healthier for your home because they are natural materials that aren’t manufactured with chemicals, unlike laminate flooring. While some laminate flooring brands are made with less formaldehyde, many contain high levels of toxic chemicals that can off-gas in your home for months and years after installation.

Choosing natural flooring materials that are easy to clean without chemical cleansers can also help keep your home safer.

Yes, running your air conditioning unit too cold can cause condensation in the air ducts and built up moisture on the air filter, resulting in a breeding ground for mold and mildew. Mold and mildew growth can irritate those with respiratory issues, so it’s best to keep your AC running at a normal temperature.

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.