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Best mold testing and remediation specialists near Durham, CA

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

Avatar for Environmental Science Services
Environmental Science Services
4.5(
42
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Durham, 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 C. Wright & Wright Enterprises, Inc.
C. Wright & Wright Enterprises, Inc.
3.7(
37
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Durham, CA and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"This company was great. I highly recommend them. They got Bats out of our business and they are Western Bat Specialists! The crew was top-notch and the office was awesome to deal with. I have to say A+ service."
 Guano in Attic
 bat
 Bats roosting in attic
 Moms with babies
Warehouse - safe & humane removal

+49

Response time1 day
40 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Walker's Home and Commercial Inspections
Walker's Home and Commercial Inspections
4.7(
6
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Durham, CA and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"I hired Walker's Home & Commercial Inspections because I was putting my older home on the market and wanted to know what repairs, if any, needed to be completed before selling. Mr. Walker pointed out several deficiencies. There was earth/wood contact below the kitchen window and some wiring that was done incorrectly. These items were corrected and the home is on the market. Thanks to the thorough inspection, a buyer will know the home was inspected and repairs done."
Inspecting
At an inspection
Response time7 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for SELECT ENVIRONMENTAL
SELECT ENVIRONMENTAL
4.3(
16
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Durham, CA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"While replacing our floors should have been an easy task, we were beyond bummed to learn that our old linoleum contained asbestos. Begrudgingly, I started calling around to get quotes on abatement and called Select Environmental on the recommendation of a friend of mine. Despite the fact that asbestos removal wasn't in my budget, I simply could not be more pleased to have found Blake and his team. From the outset, they were fast, timely, upfront, honest, and their pricing was fair. When an appointment was made for 8AM, my doorbell would ring at 7:59AM. His workers were efficient, meticulous, and courteous. By the end of our project, I almost longed to discover more asbestos so that I could use Blake and his team again. All kidding aside, I highly recommend Select Environmental and will use them again should the need arise."
Recommended by85%of homeowners
Avatar for SILVA'S PAINTING & CONSTRUCTION
SILVA'S PAINTING & CONSTRUCTION
5.0(
11
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Durham, CA and surrounding areas

In business since 2022

Free estimates

Small jobs welcome

"We called Silva’s Painting & Construction yesterday to reinforce two shelves that were sagging. They came and fixed them right away. Then we asked if they could construct additional shelves for our custom storage cabinets in our garage. They took measurements and a sample and constructed them in a very short amount of time. Silva’s and sons, Giovanni and Alex along with their amazing father, Sergio, have been wonderful in helping us with our move to another neighborhood and all the adjustments needed. Highly recommend and endorse this business."
exterior siding job
outdoor deck
outdoor deck
exterior siding project
Response time7 hrs
Response rate100%
Avatar for 911 Restoration of Redding - Unlicensed Contractor
911 Restoration of Redding - Unlicensed Contractor
5.0(
1
)
Mold & Toxic Material TestToxicity and Mold - Removal

Serving Durham, CA and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Very hardworking, punctual and polite. Isaac is clearly very knowledgeable in his field. He genuinely cares about getting the job done correctly and efficiently. Price was fair. I would definitely call him again and recommend his services to others. Top notch!"
Recommended by100%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Durham, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Excellent Service from planning through Execution and installation to final fine tuning. The folks communicated well and explained every detail of the step. Got permit and inspection done. It was seamless. Thanks. R."
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+32

Recommended by100%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Several factors affect the color of mold, including humidity levels, age of the mold, and amount of light it receives. A patch of mold that starts out green may darken and turn black as it ages. A species of mold may be green if growing in one environment, but be black in another environment. Color usually isn't a reliable way to determine mold species or risk.

Humidity, moisture, and a lack of ventilation can all cause mold to grow on surfaces in and around your home.

Exterior paint contains a higher level of VOCs, which can be dangerous if you’re exposed to it for a long period of time. The good news is that paint’s toxicity reduces significantly once fully dried and cured. Do not keep open exterior paint cans in your home, basement, or garage, exposing your household to harmful chemicals over time.

If you notice increased energy bills, poor airflow, or frequent HVAC system issues, a professional assessment is advisable. Technicians can identify duct leaks or inefficiencies that require updating or maintenance.

Yes, air duct cleaning can remove mold from the interior lines of HVAC systems. Professional air duct cleaning companies use tools and methods like brushes, cleaners, and vacuums to remove mold from air ducts. For successful mold remediation, it is essential to hire a reputable and experienced air duct cleaning service. Keeping your air ducts clean can also help prevent the conditions that allow mold to grow and thrive in your ductwork.

The Durham, 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.