Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
How Much Does a Radon Mitigation System Cost? [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:
The most common radon mitigation method is active suction soil depressurization, which costs $805 to $1,326 for your system installation.
Your mitigation method and the size of your home are the primary factors that determine your final radon mitigation system cost.
You should also budget for radon testing at $150 to $700 and permits at $25 to $150 when creating your project budget.
Hiring a local radon remediation professional to install the system keeps the household safe from dangerous cancer causing gas.
In 2026, radon mitigation system installation costs range from $805 to $1,326 nationwide, based on data from 1,184 verified projects by Angi Pros. The average cost for this project is $1,043. Most homeowners also budget $150 to $700 for radon testing and $25 to $150 for permits, with your final cost driven primarily by mitigation method, home size, and location.
How Much Does a Radon Mitigation System Cost by Method?
Radon mitigation system costs typically range from $805 to $1,326, driven primarily by which method you choose—sealing the basement, depressurization, or lower-level pressurization. The two most common depressurization approaches are active suction (soil depressurization) and passive depressurization, each suited to different home configurations and radon levels. Active suction is the more powerful of the two and is generally recommended for higher radon concentrations. Here's what to expect for pricing by radon mitigation method:
| Method | Cost Range in 2026 | Description |
|---|---|---|
| Sealing the Basement | $400–$4,600 | Only half as effective as other methods; you may need repeated resealing |
| Active Suction Soil Depressurization | $1,000–$3,000 | The most popular method; uses PVC pipe to suction gas trapped beneath your basement floor or crawl space, preventing radon from entering through foundation cracks |
| Passive Depressurization | $500–$2,500 | PVC pipes run beneath the foundation or crawl space and up the exterior walls; uses the difference in air pressure between the radon and the ambient air to push out the radon; not efficient for high radon levels |
| Wall-Based Systems | $500–$3,000 | A wall of cinder blocks is placed around the radon-affected room, and an exhaust pipe vents the gas from the space between the blocks |
| Ventilation Systems | $1,300–$2,500 | Two fans remove radon and vent it outside |
| Water Mitigation | $1,200–$5,000 | Carbon absorbs radon and efficiently cleans your water using bubbling or spraying aeration that disperses water molecules, releasing radon that is removed by a fan |
Radon Mitigation System Costs by Location: Where Does It Vary Most?
Where you live affects what you'll pay for radon mitigation, with costs ranging from $700 in lower-cost markets like Kansas City to $2,000 in higher-cost cities like Los Angeles. Beyond general cost of living, prices also shift based on how prevalent radon is in your area, how many local specialists are available, and region-specific EPA regulations. Climate can also play a role, since homes in colder regions may require more complex ventilation solutions. Getting quotes from multiple local pros is the best way to understand what's typical in your market. Here is the average radon mitigation system cost in various U.S. cities:
Kansas City: $700
Denver: $800
Boston: $1,000
Atlanta: $1,100
Chicago: $1,200
New York: $1,400
Albuquerque: $1,500
Los Angeles: $2,000
How Angi Gets Its Cost Data
To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We’ve surveyed thousands of 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.
Radon Mitigation System Cost Factors: What Affects the Price?
Several additional factors shape the final cost of a radon mitigation system beyond the method you choose, including home size, foundation type, and radon testing. Understanding these variables upfront helps you build a realistic budget and avoid surprises. Here's what to expect:
Radon testing: $150–$700
Home size: $500–$1,500 more for larger homes
Permits: $25–$150
Electrician: $50–$100 per hour, if required for wiring, installing a radon fan, or other electrical work
Unfinished basements: $4,600 if you need sealing and a ventilation system
Additional encapsulation: $1,500–$15,000 if needed (for example, in a crawl space without a foundation slab)
Energy costs: $100–$300 per year
Extended warranties: $200–$500
Installing a Radon Mitigation System Yourself vs. Hiring a Pro
Even though a radon mitigation system costs $805 to $1,326 to install professionally, this is never a project to attempt yourself. Radon is an odorless, invisible gas that can cause cancer at high levels of exposure, and improper installation puts your household at serious risk. Radon can seep into your home through the basement when enough of it is present in the ground beneath the foundation. Proper mitigation by a certified pro ensures long-term protection and peace of mind.
Here's why you should always hire a local radon mitigation specialist to install a system for you:
Proper installation requires specialized skills, tools, and knowledge. Pros design a specific system for your home's needs.
An incorrectly installed system can compromise the air quality in your home and create a dangerous environment.
Many real estate transactions expect radon mitigation to be done by certified professionals.
Radon mitigation systems must meet local building codes and EPA guidelines—and pros understand how this works.
Hiring a pro provides post-installation testing and a warranty.
Tips to Save Money When Installing a Radon Mitigation System
The costs of home radon mitigation can add up quickly. Here are a few tips to help you save without cutting corners on this important project.
Use a home testing kit ($15 to $60 on average) to see if you have enough radon to warrant professional testing and mitigation
DIY sealing of cracks and gaps in an unfinished basement before mitigation might save $100 to $500 in professional labor and materials. Note that sealing alone won't eliminate radon.
Get three or more quotes from radon testing companies near you to ensure you get a competitive price, which often falls around $1,043.
See if companies offer referral programs or discounted rates (such as 5% to 10% off the total installation cost) for new customers.
Talk to your tax professional about the possible tax benefits of paying for the system using a health savings account or flexible spending account (HSA/FSA).
Find out if you qualify for tax advantages or home repair grants in your local area. These incentives might cover $500 to $1,500 of your system.
Next Steps
You should always hire a pro to install a radon mitigation system, as incorrectly installed systems can compromise air quality and create a dangerous environment.
There are different types of radon mitigation systems, but they all function in a similar way—sucking the radon out of your house and dispersing it outside.
A radon mitigation system might cost anywhere from $400 to $1,800, and a pro can give you a personalized quote.
Frequently Asked Questions
Radon detection and reduction services reviews from real Angi homeowners in Columbus, OH
Last update on May 05, 2026
- Gerilyn L.
One of my old tall evergreen trees was suddenly leaning toward the busy street in front of my house. I submitted a request for an emergency tree inspection, and Alejandro, owner of Cajete Tree Service, contacted me immediately and arrived to look at it just 20 minutes later. We agreed the...
Cajete Tree Service LLC - Jeff B.
Great company! Price was competitive, technician showed up on time and completed the job (exterior electric Radon fan replacement) quickly. Would hire them again.
MaGen Property Inspections and Radon Mitigation - Raymonda D.
1 tree was cut down and 5 others including a large willow tree were trimmed. The Grant Tree Service men were professional and cleaned up afterwards. The cost of the 6 trees were affordable. I am very happy with the results. I would hire them again.
Grants Tree Service - Alexis P.
I had FabClean 614 clean my apartment, and she did an outstanding job. She was so professional and efficient. My apartment looks absolutely spotless every surface, every corner, all cleaned to perfection. Definitely highly recommend FabClean 614 if you're looking for top-notch cleaning...
Fab Clean 614 - Melissa L.
It went so well! They were prompt and efficient! They were patient with last minute changes and the work was worth the money
Security Doors and Shutters - Chance R.
D1 Roofing delivers outstanding service from beginning to end, backed by a strong warranty and expert teams. I highly recommend them for their excellence in meeting and surpassing expectations with unmatched communication. Choosing D1 Roofing was flawless decision
Division 1 Roofing LLC - Kathy Y.
Seth was very professional, prompt in responding to queries about the work required , gave sincere advice as to what would be best for tree trimming and did the job timely.
- Regina H.
I conferred with 2 other contractors before Armstrong Electric. Nick and his crew showed me that the project was not as convoluted as the other contractors made it appear to be. They completed the entire project on time. They were professional, friendly and cleaned up after at completion. I...
ARMSTRONG ELECTRIC, LLC - David B.
The technician was very professional and friendly. He answered all my questions and was very thorough. He left the fireplace area very clean . He inspected from the roof and advised me as to other work that might need to be done. There was no pressure there. I was very satisfied with the...
Supreme brick & chimney - Jean B.
I had Ace Fireplace Services install custom chimney caps for my home, and the results are stunning. They fit like a glove and have added a touch of sophistication to my chimney. I can't recommend their services enough.
Ace Fireplace Services
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