Radon Testing and Mitigation in Loveland, CO
Founded in 1877 along the Colorado Central Railroad where the Big Thompson River leaves the foothills, Loveland is the second most populous city in Larimer County, with 76,344 residents recorded in the 2020 census. That long history shows up in the housing: a compact historic downtown dating to the town’s earliest years, established neighborhoods like Mariana Butte, and a large band of newer master-planned growth on the east side at Centerra, including Kinston and Van de Water. Whatever era your home comes from, all of it sits in the same radon picture, because Larimer County is mapped as EPA Radon Zone 1.
Why radon matters for Loveland homes
Zone 1 is the EPA’s highest-potential category, meaning the predicted average indoor screening level across the area is greater than 4.0 pCi/L. You can see Larimer’s placement on the EPA map of radon zones. Across Colorado as a whole, CDPHE reports about half of homes have elevated radon. That is a statewide figure, not a Loveland-specific one, and radon does not follow neighborhood lines or the age of a house. A 1900s home near Fourth Street and a brand-new build in Centerra can both test high or low. The only way to know a specific address is to test it.
Radon is the second leading cause of lung cancer in the United States after smoking, and the leading cause among people who have never smoked, according to CDPHE. Because you cannot see or smell it, a high test result is the trigger that turns an invisible risk into a fixable one. Loveland’s terrain, rising from the river bottoms near downtown up toward Mariana Butte and the foothills, means soil and rock vary block by block, which is one more reason a neighbor’s result cannot stand in for yours.
The EPA advises fixing a home at 4.0 pCi/L or higher and suggests you weigh action between 2.0 and 4.0 pCi/L, per its action level guidance. A short-term test is inexpensive and often the first step, and a Colorado-licensed measurement professional can place a longer test or confirm a borderline reading.
Testing and mitigation are licensed work in Colorado
Since July 1, 2022, Colorado has required a state license to perform radon measurement or mitigation for pay. The rule comes from House Bill 21-1195, and licenses are issued by DORA, the Division of Professions and Occupations. There are two license types, one for measurement and one for mitigation.
NoCo Radon Pros is a free referral service. The brand is not a contractor and does not hold a Colorado radon license. The measurement and any mitigation are done by an independent, Colorado-licensed radon professional working the Loveland area. Before any work starts, you can confirm a license yourself on the DORA license lookup. To understand how a free service stays free, see how we make money.
The Centerra new-construction angle
Loveland’s eastern growth means a lot of recent housing at Centerra, Kinston, and Van de Water. Many newer Colorado subdivisions include a passive radon rough-in during construction, but a passive pipe is not the same as a home proven to be below the action level. Often the system needs a fan activated to actually pull radon out, and activating a builder’s passive rough-in typically runs about $500 to $800. A short post-installation test is what confirms the level dropped. Newer buyers should treat testing as a step, not an assumption. Read radon test results explained to see how to read your number.
What mitigation costs and who pays
For most homes a standard sub-slab system runs $1,000 to $2,500, with about $1,500 common. Crawl spaces, which show up in some older Loveland properties, generally cost more depending on size and condition. Budget against those numbers. Separately, the CDPHE Low Income Radon Mitigation Assistance program may be offered to households that qualify, and Larimer County points residents to it. Amounts and eligibility change, so CDPHE’s page is the current one. Our radon mitigation cost guide breaks down the full range. Actual pricing always comes from the licensed professional who sees the home.
Buying, selling, or renting in Loveland
If you are in a transaction, radon has a legal side too. Colorado’s disclosure law affects both home sales and residential leases. You can start with the Colorado radon law guide, or if you are a landlord or tenant, the landlord radon obligations guide. To begin, browse our services or radon testing, and when you are ready, get a free radon quote for the property.