The cost of a radon mitigation system in Baltimore, MD, depends mostly on the type of system being installed. Use this guide to learn about your options.
How Much Does a Radon Mitigation System Cost in Washington, DC? [2026 Data]
Radon detection and reduction costs depend on your project and location. Check with a local pro for your specific job.
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Cost Insights
Active suction soil depressurization—the most common method—ranges from $843 to $2,529 in Washington, D.C.
Meanwhile, passive depressurization costs less overall, and water mitigation is more costly than both.
You should also budget for a radon test, which costs anywhere from $138 to $401 in Washington, D.C.
These systems are vital for your health and safety, so let a local radon mitigation pro handle the work.
The average radon mitigation system cost in Washington, D.C., is $869, but it commonly ranges between $754 and $1,045. The price you pay will depend on a handful of factors, including the mitigation method and the size of your home. Here’s how to estimate your radon mitigation costs based on these variables.
Radon Mitigation Cost Factors
The cost of radon mitigation in Washington, D.C., heavily depends on the following factors.
Cost by Method
The cost of a radon mitigation system depends on the chosen approach, which might be sealing the basement, depressurization, or lower-level pressurization. The depressurization method happens in one of two types: active suction (soil depressurization) or passive depressurization.
Here’s what to expect for pricing by radon mitigation method:
| Method | Cost Range in Washington, D.C. | Description |
|---|---|---|
| Sealing the basement | $337–$3,877 | Half as effective; may require repeated resealing |
| Active suction soil depressurization | $843–$2,529 | Most common method; PVC pipe suctions gas from beneath foundation |
| Passive depressurization | $421–$2,107 | Vents radon through PVC piping using pressure differences; low efficiency at high levels |
| Wall-based systems | $421–$2,529 | Cinder block wall creates vented cavity to exhaust radon |
| Ventilation systems | $1,096–$2,107 | Two fans remove radon and vent it outside |
| Water mitigation | $1,011–$4,215 | Uses carbon and aeration to remove radon from water |
Cost by Home Size
Your home’s size can also affect the price of a radon mitigation system in Washington, D.C. If you have a larger home, your system will need more materials and equipment, which can drive up costs. Plus, bigger systems take longer to install than smaller ones, so your pro’s labor costs will be higher as well.
Cost by Home Age
The age of your home is another cost factor to consider when installing a radon mitigation system. Older houses tend to have more foundation cracks and other potential radon entry points than newer homes, which can be more labor-intensive (and expensive) to fix.
Accessibility can also be challenging in some older properties. If so, your pro might charge more for labor due to the extra time and equipment required for the job.
Radon Mitigation Pro Costs
Before contacting a pro to add a radon mitigation system to your home, here are a few final costs to consider.
Permits
Installing a radon mitigation system involves electrical work, which requires a permit in Washington, D.C. Permit costs depend on the specifics of your system, so you can ask your radon mitigation pro for an estimate based on your project details.
Labor
Radon mitigation system installation is best left to the professionals. When you request a quote from a radon detection and reduction specialist in Washington, D.C., it should include the cost of labor. If it doesn’t, be sure to ask how much your pro charges for their time.
Licensing and Certification
In Washington, D.C., there isn’t a specific license for radon mitigation professionals. However, the District’s Department of Energy and Environment recommends hiring contractors who are certified by the National Radon Proficiency Program (NRPP) or National Radon Safety Board (NRSB).
Additional Pros to Consider Hiring
Depending on the complexity of your radon mitigation system installation, you might need additional services, such as:
Electrical work: If you need new wiring or other electrical work, you can expect to pay between $167 and $515 for an electrician in Washington, D.C.
Foundation repair: On average, foundation repair pros in Washington, D.C., charge between $2,526 and $9,709 per project.
Encapsulation: If you have a crawl space, your contractor might recommend encapsulation, which involves installing vapor barriers along the walls and floor. Encapsulation costs $2 to $10 per square foot, so the larger your crawl space, the more you’ll pay.
Does a Radon Mitigation System Increase Home Value?
According to the Environmental Protection Agency (EPA), radon is the second-leading cause of lung cancer in the U.S. If your Washington, D.C., home has elevated radon levels, a radon mitigation system is an excellent investment to protect your family’s health. On top of that, a well-maintained radon mitigation system can make your home more appealing to potential buyers if you decide to sell, which can increase your property value.
How Angi Gets Its Cost Data
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.
Radon detection and reduction services reviews from real Angi homeowners in Washington, DC
5.0★ avg. • 1 total reviews
- Jon C.
Aran and his team seamlessly performed the testing with limited instructions from property owners but kept us informed throughout the process. Very professional.
Indoor Green Solutions - Chris G.
The on-sight estimate was thorough, accurate, and the job completed well within the time specified. The work looks great too, we're very satisfied!
International Brick & Concrete - Dave H.
Murray was prompt and thorough in assessing the mold situation in the bathrooms and making appropriate observations and recommendations free of charge.
Capitol Mold - David M.
The inspector was well knowledge, gave me a time of arrival and he was already there. Inspector test home with x- ray equipment to show my home was lead free, an wouid be lead free for life
- Sonia W.
They made an appointment and came to provide an estimate for the work the same day, and completed it later that day. They did exactly the weed vine removal I wanted. I highly recommend Perez Landscaping.
Perez services - Channing P.
I was very pleased with the job done by JL Tree Removal Service. They were very professional, reasonable in price, arrived on time, and completed the job in about five hours, including removing the stump and overall clean up. I would definitely recommend them to anyone needing tree removal....
- Betsy K.
We love BuildersXLT, they have remodeled three bathrooms, replaced a tub with a shower, painted, and done a small drainage project for us, so far. Jorge and his crew are very friendly and professional and get the jobs done promptly and well. Jorge has a very professional demeanor and is good...
Builders XLT - Guido L.
We asked Mara and her team to strip and refinish our 100 years old decorated radiators. I have been impressed by the quality of the results. The stripping was performed perfectly, without any damage to the radiators and their precious decoration, revealing all details. I was impressed. ...
ChemStrip - Henry B.
Fast and efficient service. On time and the job was completed without fuss and right the first time. Highly Recommended.
A1 Masonry Contractors - Emily B.
Seconding the review that says Dale did AAA+++ work. He installed a three rail wood fence with wire and three gates around our half acre yard. His workmanship was top notch and our fence looks beautiful. Dale was communicative, accommodating, flexible, and great to work with.
The homeowners guide to radon detection and reduction services
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