Top-rated mold testing and remediation specialists.

Best mold testing and remediation specialists near Sequim, WA

Enter your zip and get matched with up to 5 pros

Need a pro for your mold testing and remediation project in Sequim, WA?

Select your specific project to find the pro for you.

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

Avatar for Mold Inspection Sciences of Seattle
Mold Inspection Sciences of Seattle
4.8(
30
)
Mold & Toxic Material Test

Serving Sequim, WA and surrounding areas

Approved

In business since 2002

Free estimates

Small jobs welcome

"The technicians was professional, thorough, and informative. He did a careful look, photographed potential mold, and collected samples. He advised us on how to prevent mold—which was helpful since we were having our roof replaced. The tests came back in time for any roof work."
Air Pump
PPE
Attic inspection
qPCR Sample
Infrared camera

+3

Response time2 days
Response rate100%
Recommended by92%of homeowners
Avatar for Insulation Pro Inc.
Insulation Pro Inc.
5.0(
19
)
Mold & Toxic Material TestToxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Sequim, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"Insulation Pro was the third company that I hired for inspection mold growth in my house. They were the only one that were able to locate the source and remediate . They provided me pictures evidence of any problem I had to address Thank you for honest quality project"
Attic project
During job progress
During process
Crawl space full service
Before project crawl space

+59

Response time5 hrs
Response rate95%
6 neighbors recently requested a quote
Avatar for KCB ENVIRONMENTAL SERVICES LLC
KCB ENVIRONMENTAL SERVICES LLC
5.0(
5
)
Mold & Toxic Material Test

Serving Sequim, WA and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

With over 20 years of experience in the asbestos industry, KCB Environmental Services LLC provides accredited AHERA building inspections and professional asbestos testing throughout Kitsap, Mason, Pierce, Jefferson, and Clallam Counties in Washington.\nWhether you?re planning a light remodel, a full demolition, or anything in between, we help homeowners and contractors stay safe, compliant, and prepared. We offer everything from single-area or material sampling to complete home and building inspections for asbestos-containing materials.\nAs a family-owned and operated business, we treat every client like our only client. Customer service, honor, and integrity form the foundation of how we work. You?ll get clear explanations, responsive communication, competitive pricing, and results you can count on?so you can move forward with your project confidently and without unnecessary delays.\nWe?re here to make the process straightforward, educational, and stress-free.

17 neighbors recently requested a quote
Protech Environmental Services Inc
4.7(
77
)
Dry-rot, Water or Pest Damage - Major RepairIndoor Air Quality TestingMold & Toxic Material Test+3 more

Serving Sequim, WA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Pro is an important part of their name, and they live it! Protech Environmental is a top notch contractor. We hired them to safely remove vinyl flooring that contained asbestos, after we found them on the WA state Labor & Industries Certified Contractors List. Use this list in combination with Angi before you have any asbestos remediation done. Protech's bid was the lowest bid we received, but that was not the only reason we chose them. Each time we contacted them, they responded within a few hours. We sent Protech and the other bidders questions about their plans for the job, including their workers' vaccination status (they are all vaccinated), how long the work would take, and other things. They responded promptly and completely, and came to the house in advance of the work to make sure they knew exactly what we needed. On the day of the job, they called us several hours before they were to begin, to tell us they had to deal with an equipment problem and would be here about an hour late. They weren't that late, only about 40 minutes. Once they began, they worked efficiently, finishing the work in less time than expected. An important part of asbestos abatement is the clean up at the end of the project, and they did a wonderful job. They did a great job of removing their barriers with only a few spots where their tape took small amounts of paint from the walls. Any staples were removed and the woodwork was not harmed. We are very pleased with Protech's work. We will recommend them to anyone we know and the next time we need a contractor we will look at them first to see if they offer the services we need."
Recommended by96%of homeowners
Avatar for Pacific Water Damage
Pacific Water Damage
4.4(
42
)
Dry-rot, Water or Pest Damage - Major RepairIndoor Air Quality TestingMold & Toxic Material Test+3 more

Serving Sequim, WA and surrounding areas

In business since 1988

Free estimates

Emergency services offered

"It was a good experience. We just walked around the house and looked at the job but I did not use them. They were on time and they called me before they came. They were precise. They actually told me that I do not even really need them. They even said that my mold was not that bad. They were honest with me and they did not try to take my money. Their price was excellent and their responsiveness was good."
Recommended by93%of homeowners
Avatar for All Haven Home Wellness
All Haven Home Wellness
5.0(
1
)
Mold & Toxic Material Test

Serving Sequim, WA and surrounding areas

Small jobs welcome

The best Certified independent mold inspection and testing in Greater Seattle.\n\nCompetitively priced and 100% independent and unbiased. Offering visual inspections, swab testing, air testing, and much more. \n\nClear and transparent results with guided next steps. Say hi today!

Palm Construction and Remodeling Inc.
4.2(
88
)
Dry-rot, Water or Pest Damage - Major RepairIndoor Air Quality TestingMold & Toxic Material Test+3 more

Serving Sequim, WA and surrounding areas

In business since 2020

Free estimates

Offers commercial services

"Palm Construction recently re-roofed my house and did quick and high quality job at very competitive price. They also cleaned working are and it was a true pleasure to work with them. Special thanks to Lee, project manager. He was professional, honest and helpful."
Response time2 days
Recommended by90%of homeowners
Avatar for Affordable Abatement LLC
Affordable Abatement LLC
5.0(
3
)
Toxicity and Mold - Removal

Serving Sequim, WA and surrounding areas

In business since 2025

Free estimates

Small jobs welcome

"We discovered asbestos in our attic during a recent renovation. Uriel and his partner, Elder, were recommended to us by the company we hired to clean out the attic. Uriel walked us through the steps involved, and Elder exceeded every expectation set. Elder and crew worked quietly and efficiently, completing the job ahead of schedule. They sealed off the attic and adjacent room to contain the material and left the affected areas in immaculate condition at the completion of the project. I cannot say enough good things about them and happily recommend them to anyone needing asbestos abatement services."
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Sequim, WA and surrounding areas

In business since 1971

Credit card accepted

"The technician did an excellent job. It did take a while to get the repair finished, but that was due to Bertazzoni delivering the parts. I have had multiple problems with this particular appliance. My range now works better than it did when new, but I have a feeling that even if I have continuing problems with it, American Home Shield will just repair rather than replace due to the cost of the range. By the way, I'm not exactly sure of the date of the repair."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Showing 1-10 of 21
Mold Testing and Remediation FAQs, answered by experts

You normally won’t see any dust or mold actively floating out of your vent, but you might notice your vent looks dirty. Mold will cling to the sides and collect almost like black soot. Dust will look, well, dusty, but there will usually be a heavy buildup so expect thick gray layers on the bottom and sometimes the sides of the vent. If you suspect you have mold in your vents, call a professional immediately.

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.

In most cases, it's not worth the risk of buying a home with mold. You should carefully weigh the pros and cons before making a decision—and there are far more drawbacks than benefits. For one, buying a house with mold opens you up to health risks since mold can cause respiratory and allergic reactions. If the mold is widespread throughout the home, the cost to completely remove it, make necessary repairs, and prevent it from returning is often not worth the cost savings of buying a mold-infested home for a bargain.

In most cases, it is safe to return home after mold remediation is complete. You should follow your mold remediation technician’s recommendations, but most pros request that homeowners wait one day after the process is complete to move back in.

After returning home, be sure to carefully inspect the exposed areas for any remaining signs of mold spores. Contact the mold remediation company if you detect any lingering mold.

In some cases, yes, insulating an unheated garage can lead to mold and mildew. The issue with insulating a garage is that the interior will warm up and cool down more slowly than the exterior air, which can cause condensation inside the space. Where there is moisture, there is likely to be mold and mildew over time. Installing a vapor barrier can help avoid moisture and mildew problems in an insulated garage.

The Sequim, WA 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.