Top-rated radon gas testers.

Get matched with top radon gas testers in Westminster, 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 Westminster

Avatar for NextDay Inspect
NextDay Inspect
4.9(
347
)

Serving Westminster, 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 Baltimore Home Specs, LLC
Baltimore Home Specs, LLC
5.0(
4
)

Serving Westminster, MD and surrounding areas

Approved

Warranties offered

Credit card accepted

Customers say: Quick response

Home inspection company that covers the house from top to bottom. Covering from the roof to the basement and / or crawl space. Nothing is left un turned. Also, specialize in radon, mold, and lead testing. Former Level II Thermaligist (infrared scanning). I can do it all. I am also certified through the Baltimore city and county to conduct rental inspection.

6 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for JWH Inspections
JWH Inspections
5.0(
1
)

Serving Westminster, MD and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

Hello my name is Jason William Hornung. Buying a home is a big investment. I want to help you make a well informed decision. I have been in the residential construction field for 17 years, and have an intimate knowledge of the homes in our area having done so much work in them myself. I stay continuously trained studying current information to give the best reports out there. I've seen many things that other inspectors have missed both as a home inspector and a contractor. My inspections meet or exceed the ASHI standards of practice. WWW.Homeinspector.org/standards WWW.JWHInspections.com

Home Inspection
Home Inspection
Home Inspection
Green Certified
Radon Certified

+3

Response time2 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for Inspections by Bob
Inspections by Bob
4.9(
145
)

Serving Westminster, MD and surrounding areas

In business since 2003

Free estimates

Warranties offered

"<p>It is six months post-report.  He missed a lot of serious things.  Serious things that cost me a lot to fix. </p> <p>As one example, he noted on the report that the dishwasher light didn't work.  On day of final walkthrough, Seller had not fixed light.  Called Seller, she said it works, the light is just out and it is too cost prohibitive to fix  (a lie obviously).  First day in the house, I try to run it, it works for 15 minutes before error message appears.  Wrote Bob asking why he didn't tell me that it only worked for 15 minutes ---he said, well I told you the light was out, so I couldn't run a full cycle!  Um, how about saying in the report that the dishwasher DOES NOT OPERATE for more than 15 minutes AND the light is out.  That would have been good to know when negotiating with the Seller.  He said "go back to the Seller."  No, actually, I had a chance to inspect the property, I did, and you messed up.  Sure, the Seller is probably to blame, but come on, I would have to sue her to get my money!  Who has time for that?  That's the point of an inspection.  To avoid that. . . .$900 later. . . .</p> <p>Missed a huge crack in the oven heating element. . . .$900 later. . . .</p> <p>Nothing noted in the report about inadequate insulation.  Guess what? The insulation is inadequate.</p> <p>Missed several windows where the spring was broken.  Only noted a few.  </p> <p>Missed water damage.  Does not use infrared camera.</p> <p>He was never in the construction business before starting this business.  Ironically, he was in IT (see below).</p> <p>He pointed out a lot of things that weren't even an issue:  made a big deal about "exposed footings," hired an engineer to come out --who laughed---since Bob didn't seem to know what a footing is;  Bob said there is no deck flashing, when, yup, clearly there is.</p> <p>No excuse in this day and age not to have a computerized report with pictures in a pdf format.  He writes everything by hand and prints out separate pictures.  It took forever for him to finish the report while we all stood around.  Even the realtor was annoyed.</p> <p>He's a nice guy and he was prompt, I will give him that.  </p> <p>If I had to do it all over again, I would hire a bunch of experts for the same price I paid him.</p> <p>____________</p> <p>Response:</p> <p>Actually, the heating element worked.  The glass surrounding the heating element was cracked, thereby causing food to scorch because too much direct heat escaped, and also thermostat off.  </p> <p>Good to know that you had a piece of equipment you didn't think was useful to use because we didn't ask you to use it.  Since we're the home inspection experts?</p> <p>I have done two prior inspections with different inspectors, as well as sold my own homes.  Everyone else has a computerized report that is completed on-site.  Photos are uploaded digitally and integrated into the report.  The findings are discussed at the site.  Yes, I'm calling B.S.</p> <p>Now we're having issues with the HVAC.  Appears there is something wrong upstairs.  It was super dry in the winter (he does not do checks for Relative Humidity - FYI). Now air gets cold, but high humidity, probably something wrong with the ductwork or poor attic ventilation.  Great.  Another expense I wasn't expecting.  We noticed a musty smell in the home and asked Bob to check it out.  Bob said he smelled nothing.</p> <p>I didn't even mention the mold/mildew.  Which I actually hired him to test for.  Found nothing.  Turns out the swab method used by Bob isn't really all that great or diagnostic.  Terrific.</p> <p>Anyway, Bob, you're a super nice guy.  I hate to give you a negative review.  But that's what Angie's list is all about.  I hope you learn something from this.  Probably 99% of homes don't have major issues, but some do.  We count on you to guide us.  You failed.  And I don't think you even care that you did.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /></p>"
Recommended by96%of homeowners
Avatar for Anvil Radon Services
Anvil Radon Services
5.0(
15
)

Serving Westminster, MD and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Extremely fast, professional & the best price out there. I’ve been having radon mitigation systems installed for 15 years and this was the best company I ever used"
Recommended by100%of homeowners
Avatar for The Home Detective
The Home Detective
4.9(
47
)

Serving Westminster, MD and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"Robert is FANTASTIC!!! The regulations that a typical home inspector must work by are not as thorough as most home buyers would prefer...luckily Robert is not quite typical. He is thorough to a T exploring the home from basement to chimney top. I would hire him for every home I look to buy in my future. Very confident and happy with his work."
Recommended by97%of homeowners
Avatar for G M D Construction INC
G M D Construction INC
4.9(
98
)

Serving Westminster, MD and surrounding areas

In business since 1985

Free estimates

Warranties offered

"Excellent. GMD installed a system that was integrated into existing french drain, updated an existing sump pump, installed a duct fan, and sealed the entire system. They performed a smoke test to ensure air flow. Team took pains to leave behind a clean work area, were friendly, and willing to ask any and all questions. Radon following their test showed a significant drop in detected radon. Would highly recommend them to anyone requiring radon mitigation."
Recommended by98%of homeowners
Mitchell Home Inspections, LLC
5.0(
86
)

Serving Westminster, MD and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"I contacted Mitchell Home Inspections due to a positive referral from a friend. The inspector (Cliff) arrived early and was very knowledgeable and polite. He did a really thorough inspection and the report was well written with many pictures, notes, and findings. One of the most important things he did was to inform me that he observed radon mitigation systems on the surrounding homes. Based on this, I requested that he perform the radon test and we discovered that our home had a very high radon level. If he did not mention that, my family would be putting ourselves at risk for lung cancer (due to radon) without even knowing it. Now we have the mitigation system in place so we can sleep well and safe. THANK YOU CLIFF!!"
Recommended by100%of homeowners
BENNER GEOTECH
5.0(
16
)

Serving Westminster, MD 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
...
Showing 1-10 of 76
FAQs for radon gas testing projects in Westminster, 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 Westminster, MD homeowners’ guide to radon gas testings

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