Top-rated mold testing and remediation specialists.

Get matched with top mold testing and remediation specialists in Willits, CA

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

Verified Reviews for Mold Testing And Remediation pros in Willits, CA

*The Angi rating for Mold Testing And Remediation companies in Willits, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Mold Testing And Remediation needs.

*The HomeAdvisor rating for Mold Testing And Remediation companies in Willits, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Mold Testing And Remediation needs.

Last update on March 31, 2026

Find Mold testing and remediation specialists in Willits

Avatar for Moisture & Restoration Consultants, LLC
Moisture & Restoration Consultants, LLC
4.8(
59
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Willits, 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
9 neighbors recently requested a quote
Recommended by85%of homeowners
Request Quote
Avatar for Hindsight Environmental
Hindsight Environmental
5.0(
7
)
Mold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Willits, CA and surrounding areas

Approved

Small jobs welcome

Credit card accepted

Offers commercial services

"Professional and more than complete in their work and reporting. We could not have been more satisfied."
Residential Mold Sampling
Residential Mold Sampling
Residential Mold Sampling
Residential Mold Sampling
Residential Mold Sampling

+3

10 neighbors recently requested a quote
Request Quote
Avatar for Mold Test Company NO CA
Mold Test Company NO CA
3.8(
119
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Willits, CA and surrounding areas

Approved

In business since 2018

Emergency services offered

Small jobs welcome

"Every step of the way was punctual, professional and well explained. I would recommend Mold Test Company to anyone."
Drywall
Drywall
Drywall
Insulation
Insulation

+71

Response time1 day
242 neighbors recently requested a quote
Recommended by81%of homeowners
Request 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 Willits, CA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Very satisfied how quickly they came out and got the test results that evening."
interior
IAQ
Clandestine Laboratory Investigation
Wipe Testing for Asbestos
Water Intrusion Mold Testing

+3

Response time8 hrs
6 neighbors recently requested a quote
Recommended by97%of homeowners
Request Quote
Avatar for Redwood Restoration, Inc.
Redwood Restoration, Inc.
4.9(
17
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Willits, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Redwood was great. They were prompt, listened to my concerns and left the project site immaculate. Patrick was great"
Before
During
During
During
After

+11

Response time1 day
14 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for North State Pure Maintenance
North State Pure Maintenance
5.0(
6
)
Mold & Toxic Material TestToxicity and Mold - RemovalIndoor Air Quality Testing+2 more

Serving Willits, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I highly recommend North State Pure Maintenance! Ron and his daughter were thorough with cleaning the mold. They were kind and attentive to my questions. Iâ m very happy with the job they did for me."
Response time11 hrs
Response rate88%
27 neighbors recently requested a quote
Request Quote
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 Willits, 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
Request Quote
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Willits, CA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Overall, they did a good job. They are friendly and very helpful. we had a little mess to clean up after, but to be fair, I didn't complain -- if i had they would have come back. Preferably they would have come back to check on their own."
Cool Roof Install
Energy Upgrade
HVAC Air Duct
Home Energy Audit
Energy Upgrade Contractors

+6

Recommended by98%of homeowners
Request Quote
Avatar for Repair & Remodel Experts
Repair & Remodel Experts
4.5(
15
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Willits, CA and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"Darnell from R & r experts took care of everything from start to finish. I did not have to very about the details. His people did an excellent job. Very good quality."
Almond Valley
St Cloud
St Cloud
West Lancaster
Castaic

+1

Recommended by100%of homeowners
Request Quote
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Willits, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We recently had Mega Power Electric Inc install a solar system and panels. The President and provided excellent communication all the way through the process. He even met with us after installation to explain the almost incomprehensible PG&E bill. Although not the least expensive bid, his was competitive and I felt he was as interested in educating me about solar and the various types of panels and inverter systems as he was in selling a system. He demonstrated how the array of panels would meet our energy needs and as opposed to some of the other companies, wasn't selling us more than we needed. We are very satisfied with our solar system and I highly recommended Mega Power Electric Inc."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+32

Recommended by100%of homeowners
Request Quote
Showing 1-10 of 17
Mold Testing and Remediation questions, answered by experts

Mold loves moisture, so prolonged high humidity levels or standing water can trigger mold growth. Mold also needs a food source to grow on, such as wood, fabric or another material. However, it's moisture that's most important for mold growth, which is why you want to keep humidity levels low.

Mold can greatly impact your home's appraisal and lower your selling price if your home's on the market. Home appraisers take mold into account when figuring out a property's overall value. Mold will lower your home's price because it poses a health risk to household members and can compromise the structural integrity of the house. Mold will require remediation, which in extreme cases can be costly, so that is factored into your home's appraisal as well.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast—ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.

Window sill mold can be harmful, but the severity depends on the type. Common household molds like Cladosporium or Aspergillus can trigger allergies, respiratory issues, or worsen asthma symptoms. However, black mold (Stachybotrys) can produce mycotoxins that can harm your health. Even less toxic molds should be addressed promptly to prevent health risks and property damage.

Toxic mold doesn't have a specific color; instead, toxicity depends on the type of mold and the mycotoxins it produces. Stachybotrys chartarum (also known as black mold) is notorious for its potential toxicity. However, not all molds appearing black are Stachybotrys chartarum. Mold species that appear in various colors, such as green, gray, brown, or black, can also produce mycotoxins. Therefore, it's essential to focus on identifying the type of mold through professional testing rather than relying solely on color to determine its toxicity.

The Willits, 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.

See all articles