The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
5 Questions to Ask About Radon Gas Abatement
Prepare yourself for mitigation so you can breathe easy
Get quotes from radon detection and reduction specialists near you
No obligation · 100% free
Get quotes from radon detection and reduction specialists near you
No obligation · 100% free
Need Help With a Project? Connect With a Pro
Questions about radon mitigation systems help you get ready for a consultation and understand what details your home and radon levels require.
Your home’s size and layout directly affect the radon mitigation system you need, and oversized buildings require multiple systems to cover the space.
Completing a radon test gives you results needed to choose the right active or passive mitigation system for your radon levels.
Hiring a local radon remediation professional takes the guesswork out of system sizing, foundation compatibility, and installation, keeping your home safe from this invisible health risk.
Get quotes from up to 3 pros!
Enter a zip below and get matched to top-rated pros near you.
Radon gas is a colorless, odorless, radioactive gas that forms naturally from the decay of uranium in soil, rock, and water. It can seep into homes through cracks in floors, walls, and foundations. Long-term radon exposure increases the risk of lung cancer. If you suspect you have a radon issue, contact a radon remediation pro near you to install a radon mitigation system. Here are some common radon mitigation questions to prepare for your initial conversation.
1. Is this an emergency? When do you need the work done?
When you contact a radon mitigation professional, they’ll first ask if you need emergency services. Emergency fixes will be more expensive, requiring your pro to reorganize their schedule to accommodate you. That said, protecting yourself and your family is well worth expediting the work. If it’s not an emergency, your pro will ask when you’d like to have the system installed, and they may make a recommendation for a timeline based on your radon test results.
2. How large is your home?
The size of your space significantly affects how a radon mitigation system works. Radon mitigation systems need to be sized to suit your home, and you may need multiple systems if you have an oversized building. A radon mitigation pro may also ask about the layout of your home and the number of stories, as this will help them get a better idea of the size and type of system you need.
3. What type of foundation do you have?
There are a few different types of radon mitigation systems, and the options available to you will depend largely on the type of foundation you have. Systems for basements and crawl spaces are usually the most affordable because the underside of your home is easy to access, and there are often options for venting the lowest level if you don’t use it as living space.
4. Have you had a radon test done?
Your expert will ask if you’ve had a radon test completed and will confirm the results because it will inform what type of system is best for your home. High radon levels will require an active mitigation system—usually a sub-slab system—to provide the best results, while a more affordable passive mitigation system may be suitable for slightly elevated radon levels. Your pro will also consider your budget when determining what type of system is ideal.
5. What type of heating and cooling system do you have?
Some heating and cooling systems that recirculate air—like forced hot air systems and central AC systems—can increase radon exposure in your living area, even if you have an unfinished basement or crawl space separating you from the source of the radon. In these cases, your pro will usually recommend a more expensive, active mitigation system to ensure the safety of you and your family.
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 - 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 - Hannah T.
Storms Mobile Welding was great to work with. They were prompt, professional and did an overall excellent job on the project. I highly recommend.
The 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.
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.
•Find out the average cost of radon fan replacement, key price factors, and ways to save. Get expert tips to budget for your radon mitigation system.
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
How does a radon mitigation system work? Learn more about how it pulls air and radon from the soil and expels it before it can enter your house.