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Find Mold & toxic material testers in Gaithersburg

Avatar for MoldGone LLC
MoldGone LLC
4.9(
964
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"Jay was great. Went through our garage, solved our issue, didn't try to upsell us, just a very thorough professional estimate and analysis of a mold-related smell issue."
Additional Photos
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+8

Response time1 day
16 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Rudd's Indoor Environment
Rudd's Indoor Environment
4.9(
50
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Danny exceeded all of our expectations on tests he performed. Very professional on the way he conducted his tests and he answered all of our questions whether in person or on the telephone. Highly recommended."
Mold testing
Water stain
closet ceiling
Fruiting body of mold
Mold on HVAC vent

+6

Response time7 hrs
10 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
217
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Timely, efficient, response. Identified a minor mold issue and applied appropriate treatment. Poor quality filters on equipment left a film of fine dust everywhere near a vent. Recommend upgrading vacuum filters to finer screen."
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+50

Response time1 day
2 neighbors recently requested a quote
Recommended by93%of homeowners
Wilbur Hull Nano Cleaning Solutions, LLC
4.9(
14
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"I found out about Wilbur Hull Nano Cleaning solutions on Angie's list thankfully. We originally contacted him regarding a mold issue. He was very straightforward and honest about the issue and how others would approach it (since we were getting a few quotes). I would highly recommend them to anyone who needed mold removal/treatment. Wilbur came in a few thousand dollars cheaper than competition and his team sprayed the whole house!"
Additional Photos
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+4

Response time12 hrs
10 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Mold Test Company MD-DC
Mold Test Company MD-DC
4.4(
27
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2015

Emergency services offered

Small jobs welcome

"This company performed a very thorough mold analysis. They opened my eyes to the dangers of the various types of mold growing in my house and provided possible solutions to remediate it."
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+70

Response time1 day
165 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for NextDay Inspect
NextDay Inspect
4.9(
335
)

Serving Gaithersburg, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"Excellent Water/Well Testing Service from NextDay Inspect – Highly Recommend! I recently had a water/well test done by NextDay Inspect, and I couldn’t be more satisfied with the entire process. From scheduling the appointment to receiving the results, everything was seamless and professional. Sonya, the inspector who came out, was amazing. She was punctual, thorough, and took the time to explain the entire testing process. She made sure I understood what was being tested and why, which gave me confidence in the results. The whole experience was smooth and stress-free, and I really appreciated how well everything was organized. The results were delivered quickly, and NextDay followed up to make sure I had all the information I needed. I can confidently say that NextDay Inspect provides top-tier service, and I highly recommend them for anyone needing water/well testing."
Inspections with Matthew
Inspections with Larry
Inspections with Dimitri
Inspections with Rhonda
Cracks in the Foundation- Here we find moderate cracks in the foundation, with evidence that they've been repaired before.

+744

Response time8 hrs
Response rate99%
7 neighbors recently requested a quote
Avatar for Mid-Atlantic Mold and Restoration
Mid-Atlantic Mold and Restoration
5.0(
13
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"When this company came to inspect my home- where I thought there was a problem, I was immediately informed that I did not have a mold problem. He literally wiped what I thought was mold away with his hand, and told me use some Lysol to take care my bathroom cabinet. I am thankful for his honesty and the fact that I didn't have to spend any money for his services. If I ever develop mold in my home, my first choice would be mid-atlantic mold and restoration! The Gentleman that came out to inspect was very kind and knowledgeable!"
Recommended by100%of homeowners
Avatar for Chesapeake Restoration and Cleaning, Inc.
Chesapeake Restoration and Cleaning, Inc.
4.8(
221
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"We hired Peake Restoration for mold test and remediation. They were very professional, easy to reach, and very helpful in both detecting the problems with the property and fixing them. We also found the pricing very reasonable, will hire them again in the future. Thank you!"
Interior Mold Testing
Response time3 hrs
Response rate94%
15 neighbors recently requested a quote
Avatar for Green Home Solutions
Green Home Solutions
4.7(
22
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2020

Warranties offered

Credit card accepted

"They explained what the process would be when they came in and did exactly as they said. Our mold shows all signs of being gone. Great Job Greenhome Solutions"
Mold Didn't Kill The Deal
Inspection: Why It Matters
Mold Didn't Kill The Deal
From attic spaces to crawl spaces, we are thorough
Mold Didn't Kill The Deal

+21

Response time2 hrs
5 neighbors recently requested a quote
Recommended by81%of homeowners
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FAQs for mold & toxic material test projects in Gaithersburg, MD

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 Gaithersburg, MD homeowners’ guide to mold & toxic material tests

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