Radon mitigation systems for Utah County homes
Most homes use a system called active soil depressurization. A pipe runs from under the slab or crawlspace to a fan that vents radon above the roof, keeping it from building up inside. A follow-up test confirms the level dropped.
System types
- Sub-slab depressurization: for basements and slab-on-grade homes, the most common setup.
- Crawlspace membrane with suction: a sealed plastic sheet over the crawlspace soil with a pipe under it.
- Sealing cracks and openings: helps, but is usually done along with a fan system, not instead of one.
What a good install includes
- A pre-install inspection of the foundation.
- Pipe routed to vent above the roofline, away from windows.
- A pressure gauge (manometer) so you can see the fan is working.
- A follow-up radon test after the system runs.
- A written warranty on the fan and the work.
Questions to ask
- Are you certified, and are you listed with Utah DEQ?
- Where will the pipe and fan go, inside or outside the house?
- What level do you guarantee after installation?
- Is the follow-up test included?
- What is the fan warranty?
See typical costs or the area we cover.
Common questions
How much can a system lower radon?
Utah DEQ says most homes can be brought to 2 pCi/L or below. Your result depends on the home and soil.
Will the fan be noisy?
Fans make a low hum. Mounting outside or in the attic keeps noise away from living space.
Does it cost much to run?
The fan runs all the time and uses a modest amount of electricity. Ask the installer for the fan's rating.
Do I need to retest later?
Yes. Utah DEQ suggests retesting every two to five years if your level is below 4, and after remodels or if you start using a lower level.
Can I sell a home with a mitigation system?
Yes. A working system with a recent test result is something buyers can see and check.
Last updated November 12, 2026