If your test came back at 4 pCi/L or higher, the EPA recommends fixing the problem. The good news is that high radon is one of the more fixable home issues. A certified mitigation professional can install a system that cuts radon levels substantially, usually in a day or two.
The most common method is called sub slab depressurization. A pipe is run through the foundation floor into the soil or gravel beneath it. A fan pulls radon from under the home and vents it above the roofline, where it disperses in outdoor air before it can enter your living space. Cracks and openings in the foundation are sealed to help the system work.
Cost varies by home. The main factors are the foundation type (basement, slab or crawl space), how easily air moves in the soil under the home, the routing of the pipe, and whether the home has more than one foundation area. Request quotes so you can compare the scope of work, not only the price. For typical price ranges, see our radon testing and mitigation cost guide.
Kansas requires radon mitigation work to be performed by a professional certified through the Kansas Department of Health and Environment. Ask for proof of current certification, and ask whether the quote includes a post installation test.
Found high radon during a sale? Read radon when buying or selling a home. Haven't tested yet? Start with radon testing in Lawrence. Local guides: Eudora and Baldwin City.
Free quote · Takes about 30 seconds · KDHE certified pros only