These are prices customers say they actually paid for a finished installation, from reviews on Angi and HomeAdvisor, not "starting at" ads. We publish a metro's number only once it has 5 or more prices from 3 or more contractors. Right now 2 of the 6 metros we have prices for clear that bar.
Paid for a radon system in Iowa, Nebraska, Colorado and Kansas? Share what you paid, anonymously. It's how more metros get a real number.
The EPA doesn't give a dollar figure; it says most homes can be fixed for about the same cost as other common home repairs, depending on the size and design of the home and the methods needed. Source: EPA, How much can a radon mitigation system cost?
The house drives the price more than the radon number. None of the official sources we checked lists the reading itself as a cost factor. They list the home's size, design and foundation, and the system it needs.
A basement, a slab-on-grade house and a crawl space are each handled differently, and some homes have more than one (a basement plus a slab addition, say). Each extra foundation area can mean another suction point or another part of the system.
Source: Iowa radon brochure (University of Iowa / Iowa HHS hotline), Massachusetts Department of Public Health, Fixing Radon in Your HomeOfficial guides list the size of the house, its design and its number of floors among the things that change the price. A bigger footprint is more slab for the system to cover.
Source: EPA, How much can a radon mitigation system cost?, Iowa radon brochure (University of Iowa / Iowa HHS hotline), Massachusetts Department of Public Health, Fixing Radon in Your HomeHow many suction pipes a house needs depends on how easily air moves through the gravel or soil under the slab. Loose gravel lets one pipe reach a wide area; tight soil or clay may need more.
Source: California Department of Public Health, Radon Fix, Iowa radon brochure (University of Iowa / Iowa HHS hotline)Often a single suction point is enough. Each added point means more drilling, piping and labor, which is why two quotes for the same house can differ: one installer may plan for more points.
Source: California Department of Public Health, Radon Fix, Massachusetts Department of Public Health, Fixing Radon in Your HomeExposed dirt in a crawl space is usually covered with a sealed plastic sheet, with the pipe drawing air from under it. A large or hard-to-reach crawl space is more material and labor. Depressurizing the crawl space air itself (not under a sheet) can raise heating and cooling costs.
Source: Minnesota Department of Health, Radon Mitigation Systems, California Department of Public Health, Radon FixThe fan has to sit outside the living space: in an attic, a garage or on the outside of the house, never in or below a room people use. Whether the pipe runs up through the garage and attic or up an outside wall changes how much work the job is, so ask each bidder where it will go.
Source: Minnesota Department of Health, Radon Mitigation Systems, California Department of Public Health, Radon FixIf the house has a sump, it gets a sealed cover, and some systems pull from the drain tile around the foundation instead of a new hole in the floor. Check that the sump cover is in the quote.
Source: Minnesota Department of Health, Radon Mitigation SystemsMost installs need power run to the fan, either an outlet near it or a hard-wired connection. Some places require an electrical permit for that, so ask whether the electrical work and any permit are included.
Source: Minnesota Department of Health, Radon Mitigation SystemsOfficial cost ranges differ by state, which reflects local labor and permit rules as well as housing. Compare our own published metros above with each other, but don't stretch them to other areas: a handful of metros says little about the rest of a state.
Source: Iowa radon brochure (University of Iowa / Iowa HHS hotline), Minnesota Department of Health, Radon Mitigation Systems, Massachusetts Department of Public Health, Fixing Radon in Your Home, Larimer County (CO) Health, RadonYou should retest after the system is running: no sooner than 24 hours after install, and within 30 days. Some installers include that test in the price and some don't, so ask. An independent test is the cleanest check.
Source: Minnesota Department of Health, Radon Mitigation Systems, Massachusetts Department of Public Health, Fixing Radon in Your Home, California Department of Public Health, Radon FixA radon fan runs all the time. Minnesota's health department says a fan's rated wattage is roughly its yearly running cost in dollars at 10¢ per kWh: a 20-watt fan comes to about $19 a year. Scale that up if your electricity costs more. Source: Minnesota Department of Health, radon fan energy costs (PDF)
Ask every installer the same questions so the prices are comparable. Print it and fill in a column per quote.
From RadonScout (radonscout.com/radon-mitigation-cost/). Based on guidance from the Minnesota, California and Massachusetts health departments; sources are listed on the web page.
Every contractor on RadonScout is listed from a state radon credential roster. Start from your state: Iowa, Nebraska, Colorado, Kansas. RadonScout doesn't take payment to list or rank anyone. What each state requires of installers and sellers: radon laws by state.