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Find Mold & toxic material testers in Reston

Avatar for MoldGone LLC
MoldGone LLC
4.9(
812
)

Serving Reston, VA 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
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Response time1 day
16 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for EnviroPure
EnviroPure
4.6(
22
)

Serving Reston, VA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"After the visual inspection, the technician told me there was definitely mold in the HVAC system and recommended we do the remediation. The cost: $1500. I decided on going ahead with the testing first just to be sure we had mold before spending that much money. The test was simple enough. The results came back a week later and it turns out we did not need the remediation they were recommending. I do not think the company was just trying to take my money, and the tech was not pushy in any way. I would just recommend doing the test and getting the lab results to tell you whether you need remediation or not (unless of course, the mold is so obvious it is reaching out to you from the walls). Otherwise, pay the $250 to get a more accurate assessment before paying for possibly unnecessary work."
Demo Free Mold Removal
Demo Free Mold Removal
Demo Free Mold Removal
Demo Free Mold Removal
Advanced Pathogen Removal

+14

Response time12 hrs
2 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
216
)

Serving Reston, VA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"This is the second time I am using Val and his company. Thanks to Val we were able to identify a semi-hidden mold issue in our home from a long-term, slow leak. He was very professional and thorough. I was thankful for the easy-to-read report/test results we received. I would highly recommend Val for your mold testing needs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+50

Response time1 day
2 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Mold Test Company VA
Mold Test Company VA
4.3(
101
)

Serving Reston, VA and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"The master teach was highly informative in explaining the science of the terms. I had previously hired another company and was left confused. I therefore paid more to have a second test by the Mold Test Company, and it was a very wise decision. If you think you may have mold in your home are apartment, I highly recommend that you contact Mold Test Company"
Technician
PVC Pipe
Shoes
Shoes
Shoes

+77

Response time1 day
136 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Mold Test Company MD-DC
Mold Test Company MD-DC
4.4(
27
)

Serving Reston, VA 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
166 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for NextDay Inspect
NextDay Inspect
4.9(
335
)

Serving Reston, VA 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 Reston, VA 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 Green Home Solutions of Northern Virginia
Green Home Solutions of Northern Virginia
4.7(
35
)

Serving Reston, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Offers commercial services

"We reached out to Green Home Solutions after discovering a dark mold like substance in one of our air vents. Roy called me within minutes of my Angie's List reach out and set up a complimentary inspection for the very next day. Roy inspected the 'mold' and quickly determined that our problem was a case of bad dust rather than mold. Roy could have charged us a ton of money offering his mold remediation services. Instead, he offered sound advice and education in how we should clean up the dust and keep our home mold free. Roy went above and beyond in sharing his expertise with us during the complimentary house visit. Roy did not pressure us into purchasing any services. We are so grateful to have reached out to Green Home Solutions and to have discussed our mold concerns with Roy. We would highly recommend this company to anyone."
Small water intrusion  in Basement window
Got Mold?
Don't touch this
Work Fleet
Work Fleet

+17

Response time1 day
26 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Water & Mold Remediators
Water & Mold Remediators
4.8(
10
)

Serving Reston, VA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"We were in the process of purchasing a home and we needed a pro inspect the house and see if there was any evidence of mold damage. Carlos and his college came check to house and they were very professional, checked the moisture level around the house and the basement, and also visually inspected behind the walls through the ducts and gave us their professional feedback."
Storm Approaching
Water damage / Outside black water
Water damage / Outside black water
Water damage / Outside black water
Water damage / Outside black water

+50

Response time1 day
Recommended by100%of homeowners
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FAQs for mold & toxic material test projects in Reston, VA

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 Reston, VA homeowners’ guide to mold & toxic material tests

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