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Best mold testing and remediation specialists near Bothell, WA

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TRUSTED BY BOTHELL, WA HOMEOWNERS

  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon25
    Verified mold testing and remediation services reviews

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

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

Serving Bothell, WA and surrounding areas

Approved

In business since 2002

Free estimates

Small jobs welcome

"Very satisfied with the whole process. Gerald did an excellent job. Arrived punctually and observed COVID protocols. Explained clearly what he was going to do and how. Showed us preliminary findings, and obtained our permission to take samples for lab testing. We felt he listened to, and responded to, our concerns. Overall a very professional experience. We’ve now received the written report and feel we got what we wanted: an objective analysis of the problem and information we need to remedy it."
Air Pump
PPE
Attic inspection
qPCR Sample
Infrared camera

+3

Response time2 days
Response rate100%
Recommended by92%of homeowners
Avatar for 5 Microns Inc.
5 Microns Inc.
4.9(
74
)
Indoor Air Quality TestingMold & Toxic Material Test

Serving Bothell, WA and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"Pascale was super detailed and only tests and checks for mold but does not do remediation so there is no conflict of interest in trying to sell additional services. I would highly recommend if you are looking for honest assessment of issues"
Vinyl sheeting asbestos test
Wall asbestos test
Asbestos air test
Mold and moisture testing
Mold air test

+32

Response time3 hrs
Response rate98%
Recommended by100%of homeowners
Avatar for The Home Private Investigator/Home P.I., LLC
The Home Private Investigator/Home P.I., LLC
4.7(
60
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Bothell, WA and surrounding areas

Approved

In business since 2005

Emergency services offered

Credit card accepted

"Virgil went through the whole house with us, advising us of spots which could lead to problems eventually and how to prevent those from happening. He used to be in construction and a home inspector so he knows exactly what to look for. He was extremely courteous throughout and very thorough. He also helped us with next steps and was very focused on saving us money without compromising on total remediation. We would totally recommend owners in similar situations (who suspect there might be a mold issue in their house) give Virgil a call."
OUR WORK
OUR WORK
OUR WORK
Response time3 hrs
Recommended by94%of homeowners
Avatar for A&F Asbestos and Gen Con
A&F Asbestos and Gen Con
5.0(
21
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Bothell, WA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"The service of drywall repair with skim coat and repaint was finished after my asbestos removal project. The team was able to complete the project within 4 days for 1100 sqft ceiling. The team was professional and on time. Initially the project was promised to be completed by 3 days. The team proactively reached out for the situation of weather might delay the progress. We were able to complete with 1 day of delay."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Response time2 days
Response rate100%
1 neighbors recently requested a quote
Avatar for PNW Mold Control, LLC
PNW Mold Control, LLC
4.7(
66
)
Mold & Toxic Material TestMold & Toxic Material Test - For BusinessToxicity and Mold - Removal+1 more

Serving Bothell, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Credit card accepted

"Responsive, quick to schedule and come out. The technician was professional and did a great job. I'm very happy I was able to find a demolition free mold remediation solution and would definitely go with Pure Maintenance again if I ever need mold remediation done again."
The Problem
Containment with Negative Air Pressure
Fog Treatment
Post Treatment Testing
Remediation Complete

+6

Response time5 hrs
Response rate94%
1 neighbors recently requested a quote
Avatar for TOTALLYSAFE AIR LLC
TOTALLYSAFE AIR LLC
4.9(
157
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Bothell, WA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"David became a friend throughout my mold remediation process. He truly cares about the customer and the issues they have with their home. Mold sounds scary and he knows there are many mold companies that use that to scare customers. He confidently accesses and eliminated mold issues. And fast. He tests before and or after and explains results. It is so nice to know that I now have a home that isn't making my family sick. David is worth the time and money. He is very reasonable in comparison to the many other bids I had. Wish I would have found him 10 years ago. If you have or just think you have a mold issue, call David immediately. He is worth your time. I had all mold concerns addressed that were in my attic, crawl and under tub. Peace of mind is what he gave me and my family. PS. I even had another reputable company come out and double check the attic only because they insisted and the hub spent 2 minutes in my attic and said David and his team did an amazing job. My attic looks and smells new. And I had a leak that David and I detected and I was able to get a roofer to take care of it. Thanks David."
Fire & Smoke Challenges
Fire & Smoke Challenges
Fire & Smoke Challenges
Fire & Smoke Challenges
Fire & Smoke Challenges

+41

Response time6 hrs
Response rate88%
1 neighbors recently requested a quote
Avatar for Mold Test Company WA
Mold Test Company WA
3.8(
80
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Bothell, WA and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"Mold testing was thorough but do not let them sell you on their remediation do-it-yourself kit without knowing exactly what you are paying for. The kit is non-refundable and sold by a separate company. They do not tell you that. They transfer you to who you think is another employee to advise about remediation and they are actually transferring you to a completely different company. I was very disappointed when I learned all that. That company does not send out an itemized list of what you paid for unless you ask for it. It has been four days and after spending close to two thousand dollars I have yet to know what I bought."
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+70

Response time2 days
43 neighbors recently requested a quote
Recommended by84%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 Bothell, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"We literally been roasted in our house especially on the second floor with that late heatwave going on . Eric from Insulation Pro took care of our attic. Full insulation replacement. Some mold problems and vents to reconnect . I was skeptic I even tested with the thermostat furnace but it literally did the job. Couldn't be happier."
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 PureAir Mold Testing
PureAir Mold Testing
5.0(
5
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Bothell, WA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of Mold services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! \n

9 neighbors recently requested a quote
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Mold Testing and Remediation FAQs, answered by experts

Pressure-treated wood offers some protection from the elements but doesn’t protect against mold. However, if you spot mold growing on pressure-treated wood, it doesn’t indicate rot or an interior fungal infection—the treatment process ensures that the mold stays on the exterior. Keep the wood dry, but if you spot some mold, remove it immediately and clean the area.

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. 

Efflorescence itself won’t turn into mold, but it can cause moisture problems, which can lead to mold. It’s important to address an efflorescence problem as soon as possible, as mold can pose health risks and even compromise the structure of your home.

According to the Environmental Protection Agency (EPA), hazardous waste is generally classified into four main categories:

1. Characteristic Wastes: These exhibit at least one of four hazardous traits: ignitability (flammable, like gasoline), corrosivity (can rust or decompose materials, like car batteries), reactivity (unstable and can explode, like aerosol cans), or toxicity (harmful when ingested, like lead-based paint).

2. Listed Wastes: These are specific wastes from manufacturing and industrial processes that the EPA has officially designated as hazardous. They include byproducts from processes that use solvents, pesticides, and other chemicals.

3. Universal Wastes: These are commonly generated hazardous items that are subject to streamlined regulations. Examples include batteries, pesticides, mercury-containing equipment (e.g., bulbs), and some lamps.

4. Mixed Wastes: This category includes waste that contains both hazardous and radioactive components, making it subject to regulation by both the EPA and the Nuclear Regulatory Commission.

Common areas include insulation, flooring, ceilings, and siding in older buildings. Professionals identify potential risks.

The Bothell, 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.