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Find Mold & toxic material testers in Sammamish

Avatar for PNW Mold Control, LLC
PNW Mold Control, LLC
4.9(
57
)

Serving Sammamish, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Credit card accepted

"Auston educated us on mold and mold removal. The information he gave was appreciated. He arrived on time and performed the mold remediation. Air samples were taken before and after the mold removal process. When the air sample tests came back from the lab, he went over the results with us. We are pleased with the results and the customer service."
The Problem
Containment with Negative Air Pressure
Fog Treatment
Post Treatment Testing
Remediation Complete

+6

Response time5 hrs
Response rate94%
7 neighbors recently requested a quote
Avatar for Mold Test Company WA
Mold Test Company WA
4.3(
66
)

Serving Sammamish, 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
91 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Mold Inspection Sciences of Seattle
Mold Inspection Sciences of Seattle
4.8(
27
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2002

Free estimates

Small jobs welcome

"We have a leak in our house, and could not determine where it was coming from (windows or siding). Mr. Jose came and did a through inspection. He determined that one of the bedroom windows was leaking. We also discovered that my rigorous attempts to prevent further damage (mold) have been somewhat successful."
Air Pump
PPE
Attic inspection
qPCR Sample
Infrared camera

+3

Response time2 days
1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for The Home Private Investigator/Home P.I., LLC
The Home Private Investigator/Home P.I., LLC
4.8(
56
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2005

Emergency services offered

Credit card accepted

"Virgil was right on with the mold issues I was dealing with. He is very knowledgeable and answered all my questions. He explained everything in language I could understand. He wasn't in a hurry. He recommend a fantastic company to do rhe mold meditation. I highly recommend Virgil (the owner)."
OUR WORK
OUR WORK
OUR WORK
Response time3 hrs
Recommended by94%of homeowners
Avatar for TOTALLYSAFE AIR LLC
TOTALLYSAFE AIR LLC
4.9(
135
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Very nice duo came - price is very reasonable. The quote was to test two areas of the house but they gave me a third test (for my unfinished basement) greatly discounted. I won’t have test results for a week so we will see."
Fire & Smoke Challenges
Fire & Smoke Challenges
Fire & Smoke Challenges
Fire & Smoke Challenges
Fire & Smoke Challenges

+41

Response time6 hrs
Recommended by98%of homeowners
Avatar for Mold Dog Company
Mold Dog Company
5.0(
3
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2020

Small jobs welcome

Credit card accepted

"I have lathe and plaster walls so having the option to have a dog come and smell was the best for us. Corinna and her dog Catalina were very professional (I have 2dogs of my own which we put outside). Catalina and Corinna are very professional pair I would highly recommend them to check for mold if your in need of this type of service. We do have mold and will be dealing with that issue. Mold is an issue in western Washington. I have been sneezing multiple times in a row when I sneeze for a few years and found out that is a mold related issue. "
Response time1 day
Response rate89%
5 neighbors recently requested a quote
Avatar for Insulation Pro Inc.
Insulation Pro Inc.
5.0(
19
)

Serving Sammamish, 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 rate91%
5 neighbors recently requested a quote
Avatar for Edgeline Restoration
Edgeline Restoration
4.9(
12
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Overall a wonderful experience. I got to experience the customer service portion and they were professional and friendly. They did some exterior mold/clean up work and we had an upstairs shower leak into the lower bathroom which turned into mold and ruined sheet rock. Colby was able make it look new. Would hire again. Good pricing too"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+23

Response time1 day
Recommended by100%of homeowners
Avatar for HomeGuard Environmental
HomeGuard Environmental
5.0(
3
)

Serving Sammamish, WA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

Our Services Include: 🍃Asbestos Testing 🍃 Asbestos Abatement 🍃 Mold Remediation 🍃 Lead Testing 🍃Lead Remediation\n\nAt HomeGuard the safety of you and our employees is our top priority, we pride ourselves on completing your abatement, mold, or lead project in both a timely and cost-effective manner. All our abatements are completed with a certified Contractor Supervisor on site, ensuring that all state and federal regulations are followed.\n\nWe pride ourselves on doing things the right way. We want you to feel comfortable throughout your entire project. Work practices include working inside an air-tight, sealed area (containment) built by us. We operate under negative pressure conditions to eliminate dust contamination along with wet methods for minimizing asbestos exposure. We use the most up to date equipment and practices to get your job done as safe, quick, and cost-effective as possible.\n\nBefore departure of our asbestos abatements, air clearance testing will be conducted to ensure all asbestos containing material has been thoroughly cleaned and removed from the project site. We work hard to get you and your family back to normal as quickly as possible.

Asbestos Removal Project
Asbestos Removal Project
Additional Photos
Additional Photos
Additional Photos

+1

Response time1 day
1 neighbors recently requested a quote
Recommended by66%of homeowners
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FAQs for mold & toxic material test projects in Sammamish, WA

Some companies offer a no‑cost phone or video consultation that screens for red flags. If the discussion points to a real issue, the pro will recommend a paid on‑site inspection. The complimentary call clarifies whether you need full testing, but it isn’t a substitute for samples, lab work, or a written report. Always confirm what the free service covers before you schedule.

A standard inspection, which includes basic air and surface samples, takes an average of two hours. If the pro needs to probe hidden spaces, such as wall cavities or ductwork, plan on up to six hours. Extra time allows the inspector to reach tight areas, collect additional samples, and document findings. Lab analysis is a separate process and often adds several business days to the overall timeframe before you receive the full report.

Mold thrives where moisture lingers and air flow is poor. Common hotspots include bathroom walls, kitchen backsplashes, window sills, HVAC vents, fireplaces, crawl spaces, and enclosed attics. Check these areas regularly—especially after leaks or high‑humidity weather—to catch growth early and avoid costly repairs.

Unchecked mold can knock 20% to 37% off a home’s market value because buyers worry about hidden damage and health risks. Even after remediation, visible staining or a history of major moisture issues can still lower offers and prolong the time on the market. Addressing mold quickly protects both your property’s structural integrity and its resale appeal.

The Sammamish, WA homeowners’ guide to mold & toxic material tests

From average costs to expert advice, get all the answers you need to get your job done.