Radon Mitigation System Installation in Iowa City
The standard fix for elevated radon. A sealed PVC pipe pulls radon gas from beneath your foundation slab and vents it safely above the roofline.
The most common — and most effective — radon mitigation method is active sub-slab depressurization (ASD). We install a sealed PVC pipe that runs from beneath your concrete slab up through the home and out above the roofline, with an inline radon fan creating constant negative pressure under the foundation. That negative pressure pulls radon gas out before it can enter your living space.
A typical Iowa City home install takes 4–8 hours. We start by sealing any visible foundation cracks and openings (this is critical — without sealing, the system has to work much harder). Then we core a 4-inch hole through the slab, run the suction pipe, install the fan in an unconditioned space (attic or exterior), and tie everything into the existing radon test point.
After installation, we leave a continuous radon monitor running for 48 hours. If your post-install levels aren't below the EPA action level of 4.0 pCi/L — and we aim for under 2.0 — we adjust the system at no charge.
Typical cost in Iowa City: $1,200–$2,800 depending on foundation type, fan placement, and whether the home has a sump pit. Real estate transactions get priority scheduling.