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

Avatar for In and Out Home Inspections, LLC
In and Out Home Inspections, LLC
4.8(
90
)
Radon Gas - Testing

Serving Westover, MD and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Very professional showed up on time, went through every detail with me sent me a very well detailed report that day. Very happy with the whole experience."
Response time7 hrs
43 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Mid Atlantic
Mid Atlantic
4.9(
18
)
Radon Gas - Testing

Serving Westover, MD and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Chris was WONDERFUL! I just purchased a home and wanted to have a mold inspection done for peace of mind. Chris took time to explain the process and put my fears at ease with his vast knowledge. He reviewed the test results with me prior to closing which gave me the peace of mind I needed to confirm I was making a good purchase and great investment. I highly recommend Mid Atlantic Commercial Residential Real Estate Solutions. VERY PROFESSIONAL AND COURTEOUS!!"
Crawl Space
Crawl Space
Crawl Space
Crawl Space
Recommended by100%of homeowners
Avatar for SWAT Environmental
SWAT Environmental
4.1(
91
)
Radon Gas - Abatement

Serving Westover, MD and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Mark did great work and made the radon abatement system blend well with the house. The office response time was slower than I would have liked, but the price and quality of work was worth the wait. All of the people I interfaced with were extremely helpful and nice. I would highly recommend this company."
Response time1 day
Recommended by90%of homeowners
Avatar for Floodbusters Inc
Floodbusters Inc
4.4(
38
)
Radon Gas - AbatementRadon Gas - Testing

Serving Westover, MD and surrounding areas

In business since 1988

Free estimates

Emergency services offered

"Things went well. We had a poor sales experience due to a previous salesperson that did not fully disclose the situation I would experience, however Floodbusters did make the situation right and warrantied the product to ensure that my experience moving forward was the best it could be given the complexity of my basement situation. They continue to work with me and believe me if you have any situation like I do in regards to Iron Ore and the devastation it delivers to your waterproofing system, this crew through my experience is the team now to hire."
Finished Base Board System
Additional Photos
Additional Photos
Additional Photos
Recommended by81%of homeowners
District Home Inspectors, LLC.
New to Angi
Radon Gas - Testing

Serving Westover, MD and surrounding areas

In business since 2017

Free estimates

Credit card accepted

Welcome to District Home Inspectors. We are the premier professional Inspection company in Maryland. We offer the highest quality and most attentive customer service. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Whether your project involves minor evaluations or complete inspections, we are glad to be your number one choice. Please call us today to schedule your appointment!

Response time40 mins
Sussex Environmental Health Consultants, LLC
5.0(
1
)
Radon Gas - Testing

Serving Westover, MD and surrounding areas

In business since 1998

Credit card accepted

Sussex Environmental Health Consultants, LLC, is an environmental, safety and health consulting firm located in Lewes, Delaware that serves the mid-Atlantic region. Sussex Environmental Health Consultants, LLC, has extensive experience in helping clients to maintain environmental and safety compliance. Sussex Environmental Health Consultants, LLC, is committed to providing the most reliable and professional environmental health consulting possible. Issues regarding health, liability all demand objective counsel based on sound scientific principles and ethical consulting practices. Our services are tailored to meet your specific needs, in addition to providing a timely and cost-effective product.

Response time7 hrs
Recommended by100%of homeowners
F .Y .T. Group, Inc.
0.0(
1
)
Radon Gas - AbatementRadon Gas - Testing

Serving Westover, MD and surrounding areas

In business since 2002

Francis has over 10 years of experience in providing service for both residential and commercial clients. He has a specialized education in his field to ensure your safety with high quality, professional analysis. Since Francis personally monitors each project, you can count on a thorough and meticulous job, with the highest quality available. Customer satisfaction is guaranteed, and you may expect competitive pricing without compromising on quality or safety. Give Francis a call today. He proudly serves the D.C. Metro area.

Radon Detection and Reduction FAQs, answered by experts

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

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.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

The Westover, 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.