Top-rated radon gas testers.

Get matched with top radon gas testers in Charlotte Hall, MD

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Charlotte Hall

Avatar for NextDay Inspect
NextDay Inspect
4.9(
340
)

Serving Charlotte Hall, 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%
6 neighbors recently requested a quote
Avatar for ANALYTIC HOME INSPECTIONS LLC
ANALYTIC HOME INSPECTIONS LLC
5.0(
3
)

Serving Charlotte Hall, MD and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

En Route
En Route
En Route
En Route
En Route

+14

21 neighbors recently requested a quote
Avatar for Boston Environmental & Contracting, Inc
Boston Environmental & Contracting, Inc
4.4(
7
)

Serving Charlotte Hall, MD 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
Avatar for Radon Experts of VA LLC
Radon Experts of VA LLC
5.0(
49
)

Serving Charlotte Hall, MD 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 Charlotte Hall, MD 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 Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
4.8(
347
)

Serving Charlotte Hall, MD and surrounding areas

In business since 1995

Free estimates

Warranties offered

"<p>it was superb! they easiest, hassle free Radon test in town, with extremely proficient people -- very knowledgeable and very people-friendly! they took their time to explain things on the phone to me before I committed. the test came back within 10 days or so -- via email. which is very convenient. it was very clear as it is, but I like talking through it and get advice. they were instantly available to discuss. they gave me future tips to keep on top of all things Radon related. </p> <p>I have to say that all this comes to be after 3 months of many back and forths with 3 other companies -- none of the other companies could be bothered to schedule a time, and those who did, never showed up.. many times over. I don't know why I was so patient with them and I wish had discovered Environmental Testing & Research Laboratories much sooner.</p> <p>Really highly recommend them!</p> <br />"
Recommended by93%of homeowners
Home Inspections
5.0(
7
)

Serving Charlotte Hall, MD and surrounding areas

Free estimates

Warranties offered

"Ms. Thalman was very professional and thorough in her inspection. The inspection was scheduled for 9:00 a.m. and she arrived as scheduled. She briefed the homeowner (seller) on what she would be doing during the inspection. She began outside pointing out various items and taking digital photos. She explained each defect as she identified it and gave suggestions on repair methods. She also made numerous suggestions as to routine maintenance on the home and the systems in the home. Once inside the house we started in the attic space. She described how the heating and air conditioning unit in the attic worked and how the system was separated into zones. She showed me how the bathroom exhaust fans were routed out through the soffit and that this was allowed by county building code. In the remainder of the house she discussed in detail each item of concern and the potential consequences of not correcting the deficiency. In the unfinished basement, she showed me the things she liked about the mechanical systems, gave me recommendations on having the systems serviced, and positive elements regarding the construction of the structure. This home will be the fifth home I have purchased and Ms. Thalman's knowledge, experience, and professionalism were by far the best I've experienced with any other home inspector. I will likely call her back to perform future inspections and testing as I need those services. I highly recommend Homes by Cynthia for anyone in Southern Maryland. <br />"
Recommended by100%of homeowners
Avatar for House Inspection Associates
House Inspection Associates
4.8(
29
)

Serving Charlotte Hall, MD and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Jiri went above and beyond a typical home inspection.  <br /> Our home was under contract before we bought it but the buyers withdrew the contract. The house had a clean report from the previous inspectors.  <br /> We bought in Jiri for our inspection and we were surprised at the level of detail Jiri provided in the report. <br /> The report was 60 pages long with very detailed pictures and descriptions of the problems. The report covered everything from holes in the roof that could let water in all the way down to aesthetic details and poor craftsmanship. <br /> We are even got signed up with a service that monitors all of our appliance models and provides us a regular report on any recalls or defects.  <br /> As a result of the inspection, we had the sellers resolve several major issues like potential leak areas, incorrectly installed insulation, recessed lighting that was not designed to be used in an insulated ceiling, etc.  <br /> Just before closing, we brought Jiri back in for a re-inspection. We found that most of the repairs that we requested were complete. With the follow up report, we were able to get an additional credit from the sellers to fix the other items that were not complete.  <br /> There were several inspection companies we could have chosen. Clearly the previous buyers chose the wrong one. We paid a little bit more for Jiri's services over some of them but Jiri came highly recommended and the price was well worth it. <br />"
Recommended by89%of homeowners
Avatar for 4U Inspection Services
4U Inspection Services
4.8(
36
)

Serving Charlotte Hall, MD and surrounding areas

In business since 2010

Free estimates

Warranties offered

"We needed a home inspection within 7 days. The receptionist was able to quickly schedule an appointment for us within 2 days of first contact. We had a couple questions about what the inspection covered. While the receptionist did not know the answers to our questions, she was able to quickly get the answers from the inspectors at the company and respond to us within the time she quoted (within a couple hours). Dominique performed a general home inspection as part of the inspection contingency on the purchase of our potential new home. She was extremely professional, courteous, and a pleasure to work with. As first time buyers, we had many questions. Not only did Dominique fully answer our questions, she provided additional information that was instructive and helpful. She was patient with us and spent the necessary amount of time to perform a full and thorough inspection despite our many questions. She was able to easily explain and prioritize the immediate concerns for the property, which was one of the main purposes of the home inspection. She performed her due diligence in completing a thorough inspection. For example during the inspection, there appeared to be a non-functional pipe extruding from the foundation. When asked about the pipe, she thoroughly investigated the surrounding areas which required her to make multiple trips between the interior and exterior of the home. Based on her knowledge and experience, she was able to determine that the piping was from the previous HVAC system that was no longer being used. She provided possible solutions to address the exposed non-capped pipe. The inspection report was provided to us on the same day as the general inspection. The report was thorough and complete with annotated pictures and descriptions that fully explained the condition of the home. We would fully recommend Dominique and 4U Home Inspections, and would not hesitate to use her and the company for our next home inspection."
Recommended by94%of homeowners
...
Showing 1-10 of 52
FAQs for radon gas testing projects in Charlotte Hall, MD

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 Charlotte Hall, MD homeowners’ guide to radon gas testings

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