Top-rated mold testing and remediation specialists.

Best mold testing and remediation specialists near Colma, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your mold testing and remediation project in Colma, CA?

Select your specific project to find the pro for you.

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 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

"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 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 hired McCormick Home Builders to remodel our living room, and we are beyond pleased with the result. The team was professional, worked efficiently, and Aris design ideas made a huge difference. The room feels so much brighter and more spacious. This was the best decision we made for our home, and we were already planning our next remodel with them."
.
.
.
.
.

+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

"We hired Ovation Restoration for a major home remodel, including adding a bathroom to the main floor, renovating three bathrooms, and installing a picture window in the family room. From start to finish, Ovation exceeded expectations with a clear, well-thought-out proposal, reasonable costs, and exceptional quality. The team, led by Juan and Chad, was professional, meticulous, and detail-oriented. Jessica ensured flawless material selection, ordering, and delivery with superb planning. Rick, the owner, provided excellent communication, accessibility, accountability, and flexibility, which made the process stress-free. The results were stunning and beyond our expectations. We’ve already recommended Ovation to friends—one has even signed a contract! We highly recommend Rick and the Ovation team for any remodeling project."
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
...
Showing 1-10 of 104
Mold Testing and Remediation FAQs, answered by experts

While the resistance of lime to mold is a hotly contested topic of debate, it is true that because it allows porous materials to breathe, it avoids trapping moisture close to the structure of a building. This breathability makes it less susceptible to mold than paint because it gathers less moisture.

Mold on window sills is common, especially in damp or poorly ventilated areas. Windows are prone to condensation, which creates the moisture mold needs to grow. Dust, dirt, and other debris on the sills can further feed mold spores. While it’s not unusual, it should be addressed quickly to prevent further growth and potential health risks.

Several factors contribute to the persistent growth of mold in vents, with excess moisture being the most common culprit. Consistent mold formation in vents indicates an ongoing moisture problem within the HVAC system or its surroundings, likely caused by condensation on cool surfaces in areas with high humidity. Moisture accumulation can also result from leaks in ductwork, inadequate ventilation, or insufficient insulation, creating an environment favorable for mold growth. Regular inspections, addressing potential sources of moisture, maintaining proper ventilation, and routine HVAC maintenance can help prevent the recurrence of mold in vents. If the issue persists, seek professional assistance to identify and rectify the underlying problems.

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.

Mold in a furnace is frequently found on evaporator coils, filters, or within the ductwork. The mold appears in dark, fuzzy patches in either black, green, or white. You may also notice a musty odor. Green or white mold can be cleaned with DIY methods, but if you see black mold, call a professional. Black mold is toxic and harmful to your health.

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.