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Avatar for Radon Abatement Services
Radon Abatement Services
4.9(
257
)
Radon Gas - Abatement

Serving Crownsville, MD and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I used Radon Abetment Services LLC to install a radon system in my basement. John and his team were excellent and I highly recommend them to anybody with this need. John was able via video over phone identify where the system should go. His team was extremely professional and courteous. The installation took a day and the improvement in radon levels was remarkable. We would absolutely use them again."
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1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Radon Abatement Services, LLC
Radon Abatement Services, LLC
4.6(
135
)
Radon Gas - Abatement

Serving Crownsville, MD and surrounding areas

Approved

In business since 1997

Free estimates

Customers say: Quick response

"After my basement test come back with significantly elevated radon, I contacted radon abatement services at the recommendation of a neighbor. A day and a half later, they were on site. While performing the initial walk through, the experienced and thoughtful professionals adapted their plan to utilize my sump pump. This was an effective strategy as it addressed the main source of radon and concealed the system in completely unfinished space. I just received my post mitigation radon results, and the system is working phenomenally. To sum it up, I was blown away by the responsiveness, thoughtfulness, and reasonableness and can't say enough positive things about this company. I don't ever post reviews, but in this circumstance I absolutely had to."
9 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for NextDay Inspect
NextDay Inspect
4.9(
503
)
Radon Gas - Testing

Serving Crownsville, 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.

+738

Response time8 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Vespene Radon Testing
Vespene Radon Testing
5.0(
3
)
Radon Gas - Testing

Serving Crownsville, MD and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Adam was very friendly while still being professional and answered all of my questions about Radon testing. I recommend Vespene Radon Texting to anyone who is concerned about the radon levels in their home."
Radon Test Equipment
1 neighbors recently requested a quote
Avatar for D & H Demolition, LLC
D & H Demolition, LLC
5.0(
11
)
Radon Gas - Testing

Serving Crownsville, MD and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

Leading the industry by providing a comprehensive service to residential & commercial clients in need of selective & structural demolition , hazardous material abatement and disposal , as well as mold remediation services. Call or click for your FREE estimate today!\n

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+9

Response time8 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Atlantic Radon
Atlantic Radon
5.0(
63
)
Radon Gas - AbatementRadon Gas - Testing

Serving Crownsville, MD and surrounding areas

In business since 2017

Free estimates

"Atlantic Radon has done an excellent job to install a radon fan in our new house passive radon system and reduced the radon level in our basement by 75% to the lowest possible rate. Tom is very knowledgable and honest guy to have as a service contractor to insatll any Radon mitigation system at affordable cost in a timely manner."
High Performance Radon Mitigation System
High Performance Radon Mitigation System
High Performance Radon Mitigation System
Installation of exhaust
Response time8 hrs
Response rate88%
Recommended by100%of homeowners
Avatar for Radon Resolvers, LLC
Radon Resolvers, LLC
4.7(
30
)
Radon Gas - Abatement

Serving Crownsville, MD and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"Very friendly, professional crew from the local area. I got the quote from Peter and had the system installed within a week. Very clean and solid installation. Time will tell how effective it is (still need to wait 48 hours to test the radon levels again) but I'm able to hear the fan through the drain (they covered the grate with a one-way drain) at the opposite corner of the house so it's definitely getting good coverage. No issues at all, I'd recommend them to anyone with either high radon levels or those just trying to reduce the radon levels in their living space!"
Response time1 day
Recommended by96%of homeowners
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Radon Detection and Reduction questions, answered by experts

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

Yes, many systems include warranties for performance. Confirm terms with your installer.

The Crownsville, MD homeowners’ guide to radon detection and reduction services

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