Radon Mitigation Systems

How mitigation works

The standard approach is called sub-slab depressurization. A pipe is run through the floor slab (or from a sump or crawl space) to a small, quiet fan, which pulls radon gas from the soil under your home and exhausts it above the roofline, where it disperses harmlessly outdoors. The fan runs continuously, keeping the pressure under your home lower than the pressure inside it — so radon is drawn out instead of seeping in.

It's a simple system with no chemicals and nothing to refill. Once it's in, it just runs.

What installation looks like

• Most installs take a day. A typical home with a basement or slab foundation is usually done in a single visit. Larger or more complex homes can take longer.
• One pipe, one fan. The visible parts are a pipe — usually run up the outside of the house or tucked inside a garage or closet — and a small fan mounted outside, above the roofline where possible.
• Sealing the gaps. As part of the job, we seal the main cracks and openings where radon enters, so the fan doesn't have to fight leaks.
• A retest to confirm. After the system has run, we test again. The retest is the proof the system is doing its job — we don't consider the job done without it.

What a system does — and doesn't — change

A mitigation system changes your radon level, not your home. It doesn't affect your heating or cooling, doesn't require remodeling, and the fan uses about as much electricity as a light bulb left on. You'll hear a faint hum near the fan outside; inside, most people don't notice it at all.

The fan runs all the time, and it's the one part that eventually wears out — fans typically last years, and when one does fail, it's a small replacement job, not a new system. We recommend retesting every few years to make sure the system is still performing.

What it costs

Cost depends on your home's foundation type, size, and where the pipe and fan need to go. A straightforward slab or basement home costs less than a home with a crawl space, an addition, or a complicated layout. We quote after seeing the home, so the number you get is for your actual house — not a guess. Quotes are free.

Already have a system?

If your home already has a mitigation system, it still pays to test — a fan can fail quietly, and levels can creep back up without anyone noticing. If your system isn't running or your levels are still high, we can inspect it, repair it, or replace the fan. Tell us what you have in the form below.

Serving the Salt Lake Valley

We install mitigation systems in Salt Lake City, Sandy, Draper, Holladay, Murray, South Jordan, West Valley City, Taylorsville, Midvale, Cottonwood Heights, West Jordan, Riverton, Herriman, Bluffdale, Millcreek, Park City, Tooele, and Ogden.