The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
How to Install a Radon Mitigation System
Protect your health, get that radon out of your house
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
SKILL LEVEL
Expert
COMPLETION TIME
8 hours
COST
$500–$1,000
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What you'll need:
TOOLS
- Drill
- 12-inch long masonry bit
- Rotary hammer
- Hammer
- Shop vacuum
SUPPLIES
- Safety goggles
- Gloves
- N-95/KN-95 face mask
- Bucket(s)
- 3-inch PVC pipe
Your home's radon test results came back, and they're not good. Don't panic. A radon mitigation system will whisk away the gas, keeping your family safe. While it's a good idea to go pro with this project, here's how to install a radon mitigation system so you know what to expect.
Prepping to Install a Radon Mitigation System
If your radon test results revealed levels above 4 picocuries per liter, you definitely need some form of mitigation system in your home to reduce radon levels, and protect your household from an increased risk of lung cancer. You may also want to install a radon mitigation system if the gas levels are elevated, above 2 picocuries per liter, to be on the safe side.
Keep in mind that many states require a license to install a radon mitigation system. For your safety and to keep your home up to code, it's usually best to hire a professional to do the job, rather than take it on yourself.
Find the Foundation's Footing and Cut a Hole
Photo: Alex Potemkin / iStock / Getty Images Plus / Getty ImagesFirst, you need to find the foundation's footing, as you don't want to hit it when you cut the hole. Use a 12-inch masonry bit on a power drill and drill a hole in the basement floor, near the wall. If you hit the footing, drill again, a few inches away. Wear goggles and a face mask, because this is a dusty job.
Next, drill a hole in the basement floor. You can use the rotary hammer or drill with the masonry bit, making a circle of holes. Once you've made the circle, whack the cement with a hammer and it should fall away.
Dig a Pit
Use the shop vacuum to suction away cement dust, then use the auger to dig a pit under the basement floor. The type of material beneath the surface determines how much you need to remove.
If there's gravel under your home, you'll have to remove about 5 gallons to make the pit. If there's soil, expect to remove about 15 gallons. Pile the soil or gravel into buckets when removing it.
Run the Pipe
Photo: Lex20 / iStock / Getty Images Plus / Getty ImagesPlace the 3-inch PVC pipe into the hole, then run the pipe up through your home. You may run the pipe all the way up to the attic, or cut a hole in the rim joist to have the pipe exit the house right above the basement.
Use a 4 1/2-inch hole saw to cut an opening large enough for the PVC pipe. Attach pieces of pipe together using the pipe sealant. Use cement and a trowel to secure the pipe in any holes.
Install a Fan and Manometer
Attach the piping to the fan, usually on the outside of the house. Also, connect a manometer to the pipe. This will let you know if the system is still working or if it's time to replace the fan.
Test the System
Conduct an at-home radon test to verify that the system is working and is pulling radon out of the house. If the radon results come back high, you may need a stronger mitigation fan or an additional suction pit.
DIY vs. Hiring a Pro
While it's important to understand how a radon mitigation system works, this is usually a project best left to a professional radon mitigation company. Installing a radon mitigation system requires knowledge of several trades, including plumbing and electricity.
Some states require you to hire a licensed expert if radon reduction is needed, so it's best to err on the side of caution and hire someone who knows what they're doing from the start.
The cost of a radon mitigation system isn't much different if you hire a pro or DIY. Since your health is at stake, and your state may require a professional anyway, you might as well go pro.
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 - 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
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