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Find Radon gas testers in Dale City

Avatar for NextDay Inspect
NextDay Inspect
4.9(
343
)

Serving Dale City, 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%
6 neighbors recently requested a quote
Avatar for Homeworx Services, Inc.
Homeworx Services, Inc.
4.7(
12
)

Serving Dale City, VA and surrounding areas

Approved

In business since 2006

Credit card accepted

Customers say: Quick response

Homeworx Services, Inc, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Inspection Pictures
Inspection pictures
Deck beam
Tub Drain
Chimney

+12

Response time4 hrs
Response rate92%
Recommended by100%of homeowners
Avatar for Adam Contracting
Adam Contracting
4.8(
137
)

Serving Dale City, VA and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Everything went great. Justin and his team were very responsive to my needs. Were able to send an electrician out first thing the next morning. Electrician, Santos, was supposed to arrive at 7:00 and he was 10 minutes early so I was very happy. He quickly fixed our problem and handled a few other issues I was having since the minimum price for them to come out was 2 hours' worth of work. Santos was very nice and explained everything in detail. I will definitely use them again!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+32

4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for SERVPRO of Springfield/Mt Vernon
SERVPRO of Springfield/Mt Vernon
4.6(
8
)

Serving Dale City, VA and surrounding areas

Approved

In business since 2009

Emergency services offered

Warranties offered

As a trusted leader in the restoration industry, SERVPRO of Springfield / Mt. Vernon is a locally owned and operated business that is determined to provide a fast response and 24-hour service to disasters of all types and sizes. All our technicians are highly trained, equipped with an extensive variety of advanced tools, and have an abundance of experience to deal with various disasters and to manage your restoration and construction needs. We posses a class A General Contractors license for VA. No job is to big or to small for us. We are a full service restoration - re-construction company. We specialize in emergency restoration, asbestos abatement and construction services. From a simple painting job, flooring installation to full kitchen and bathrooms remodeling, we do it all.

Drywall repair - after
Kitchen remodeling
Water damage project aft er being dried out
Drywall repair - before
Kitchen remodeling

+37

Response time1 day
4 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Boston Environmental & Contracting, Inc
Boston Environmental & Contracting, Inc
4.4(
7
)

Serving Dale City, VA and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"We received an asbestos inspection/test for our old plaster walls and ceiling areas. The turn around times were fantastic - inspector was in our area and able to fit us in the same day I called. Sample results and accompanying lab report were emailed within 36 hours. All samples were analyzed by a local lab accredited under the NIST NVLAP Asbestos Fiber Analysis Lab Accreditation Program, so I felt comfortable trusting the results. The inspector seemed very knowledgeable and helped walk us through any areas that could be of concern. Thankfully all samples were negative, but the modest inspection and sampling fees were well worth the piece of mind during our remodel. In short, I highly recommend this company for asbestos testing/inspections."
4 neighbors recently requested a quote
Recommended by85%of homeowners
Radon Installation Contractors LLC
5.0(
56
)

Serving Dale City, VA and surrounding areas

In business since 2009

Free estimates

Warranties offered

"Ric did an excellent job. He definitely knows the in's and out's of Radon remediation and is a careful craftsman who pays attention to the details. I did recommend him to a friend and she was also very happy with his work. My Radon level in the living space had a 3 month average of 3 PiC/L with peaks as high as 5, and after remediation it fell to a seven day average of .27 which is roughly the outside Radon level."
Recommended by98%of homeowners
Avatar for Radon Experts of VA LLC
Radon Experts of VA LLC
5.0(
49
)

Serving Dale City, VA and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"I called Rodolfo on a Friday because my radon mitigation system (installed by a different company) was in need of repair. He was able to come by the next day, on Saturday morning, and quickly identified the problem and was able to fix it."
Recommended by100%of homeowners
Avatar for The Home Detective
The Home Detective
4.9(
47
)

Serving Dale City, VA and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"Mr. Goldberg performed a radon test for me and did find that I had some moderate radon levels in my home. He's very efficient with what he does. He referred me to a guy named John Sweat to help me deal with the problem. I spoke with the guy and gave me a proposal but I have not heard from him in about a week and a half."
Recommended by97%of homeowners
Avatar for Accurate Home & Termite Inspections
Accurate Home & Termite Inspections
4.9(
183
)

Serving Dale City, VA and surrounding areas

In business since 2015

Free estimates

Warranties offered

"It went very well. Paul the inspector was highly professional and very pleasant to work with. He took his time to thoroughly go through the house and answer any questions or concerns that we had. He went well above and beyond to make sure we were satisfied with the whole process. We would highly recommend Paul and Accurate home inspections for your home inspections because they really take it seriously and know that this is a lifetime investment. On a last note the gas was not turned on the day of inspection but the company came back two days later to make sure the whole process is done without no fuss this is what i call real professionals. Thank you Paul and Fred. A highly satisfied Customer."
Recommended by97%of homeowners
BENNER GEOTECH
5.0(
16
)

Serving Dale City, VA and surrounding areas

In business since 1998

Free estimates

Warranties offered

"We got their information from our friend. When we were making an appointment, Mike gave us his professional advice based on the house details. They arrived on time and Mike's team is extremely professional and friendly. They did a wonderful job for us. We are really impressed and pleased with their work. Will highly recommend anyone who wants to do radon mitigation."
Recommended by93%of homeowners
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FAQs for radon gas testing projects in Dale City, VA

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Dale City, VA homeowners’ guide to radon gas testings

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