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TRUSTED BY ROCKVILLE, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon17
    Verified radon detection and reduction services reviews

Verified Reviews for Radon Detection And Reduction pros in Rockville, MD

*The Angi rating for Radon Detection And Reduction companies in Rockville, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Rockville, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on April 12, 2024

Top-Rated Radon detection and reduction specialists in Rockville - Updated Nov 2026

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

Serving Rockville, MD and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Radon Abatement services is a reliable dependable superb company. I have had an excellent experience from start to finish. Scheduling was easy and expeditious, service was professionally and very well done. Most importantly, Radon is gone with its in-house level reduced to almost its outside level. John Swett was very helpful and kindly answered all my emails and quickly addressed every concern I had. This project could not have been done better."
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1 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Radon Abatement Services, LLC
Radon Abatement Services, LLC
4.6(
135
)
Radon Gas - Abatement

Serving Rockville, MD and surrounding areas

Approved

In business since 1997

Free estimates

Customers say: Quick response

"I'm completely satisfied with the work that John's team did. They were extremely professional and knowledgeable. The workmanship is superb. Best of all, the system works as promised and reduced the radon concentration based on subsequent tests. I could not recommend them more highly."
12 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Target Radon
Target Radon
4.6(
172
)
Radon Gas - Abatement

Serving Rockville, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Had Target Radon out to fix an old system that failed. Talked to Steve on the phone and learned a lot about my options, then Andy and Jason came and did the work quickly and well. Price was entirely reasonable. No complaints!"
Exterior
Exterior
Interior
Radon Mitigation Systems Exterior
Radon Mitigation Systems Exterior

+2

Response time4 hrs
16 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for NextDay Inspect
NextDay Inspect
4.9(
519
)
Radon Gas - Testing

Serving Rockville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"We needed to get a radon test. The process was very easy to get scheduled. They were very professional. We will definitely use them again for any other inspections."
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%
3 neighbors recently requested a quote
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Avatar for NextDay Inspect®
NextDay Inspect®
4.9(
689
)
Radon Gas - Testing

Serving Rockville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"I had a Radon Test performed. Customer Service was great! Sonya was great! She was always on time and I received the report in a timely manner."
Radon Testing by NextDay Inspect®
Appliance Testing
Building Inspection
Thumbtack Top Pro 2019
Certified Master Inspector

+378

Response time3 hrs
Response rate98%
22 neighbors recently requested a quote
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Fidelity Home Inspections of Maryland
4.8(
59
)
Radon Gas - Testing

Serving Rockville, MD and surrounding areas

Approved

In business since 1990

Free estimates

Customers say: Quick response

"I scheduled the radon testing with Bill. He was very thorough and accommodating. Bill agreed to meet my real estate agent at the property to set up the testing equipment. As promised, the test results were provided in a report format and after 48 hrs. Great service."
Certified Fireplace & Chimney Inspector
Certified Experienced Contractor
Certified Deck Inspector
Certified Home Energy Inspector
Certified Moisture Intrusion Inspector

+4

Response time1 day
Recommended by98%of homeowners
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Avatar for ANALYTIC HOME INSPECTIONS LLC
ANALYTIC HOME INSPECTIONS LLC
4.9(
16
)
Radon Gas - Testing

Serving Rockville, MD and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

"Yes, but I have lost the papers and the results of the completion of the anti-termite work which I need for a VA refi"
En Route
En Route
En Route
En Route
En Route

+14

44 neighbors recently requested a quote
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Avatar for Nooks & Crannies Property Inspection, LLC
Nooks & Crannies Property Inspection, LLC
4.9(
5
)
Radon Gas - Testing

Serving Rockville, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Ryan was right on time both for the dropoff and pickup for doing a Radon test of my basement. He's a great communicator and is very personable! He was able to give me a fair assessment of the test results this time, how they related to the results I had gotten at closing of my home, giving me all the info necessary to feel comfortable on my plan of action. I would highly recommend him!"
Residential Radon Inspection
Response time3 hrs
Recommended by100%of homeowners
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Avatar for D & H Demolition, LLC
D & H Demolition, LLC
5.0(
11
)
Radon Gas - Testing

Serving Rockville, 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
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Radon Detection and Reduction FAQs, answered by experts

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The Rockville, 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.

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