How Much Does Radon Mitigation Cost in Denver?

CDPHE says a mitigation system in Colorado usually costs about $1,000 to $2,000 unless difficult design problems are encountered [1]. Quotes vary with your foundation type, the number of suction points, where the pipe can be routed, and electrical work for the fan. The only reliable number for your home is a written quote after an inspection.
What drives the price
- Basement, crawl space, slab, or a combination
- Sub-slab soil and fill (how easily suction spreads)
- Interior vs. exterior pipe routing, and finished basements
- Fan placement and electrical needs
- Crawl-space membrane size
Help for income-qualified homeowners
CDPHE runs a Low-Income Radon Mitigation Assistance program for qualifying Colorado homeowners [2].
Will insurance pay for radon mitigation?
Standard homeowner's policies generally don't cover radon mitigation; it's usually treated as home maintenance or a pre-existing condition. Check your own policy, and ask your insurer directly. In a home sale, the cost is often negotiated between buyer and seller instead (see buying or selling) [3].
How long does a radon mitigation system last?
The pipes and seals are passive and can last as long as the house; the fan is the part that wears out and eventually needs replacement. Check the fan manufacturer's warranty and expected service life. Because a system can lose effectiveness, CDPHE recommends retesting every two years [2], and EPA recommends watching the system's gauge or alarm [4].
Common questions
How much does radon mitigation cost in Colorado?
CDPHE says a system usually costs about $1,000 to $2,000 unless difficult design problems are encountered.
Will insurance pay for radon mitigation?
Usually not under standard homeowner policies; check your policy and ask your insurer.
What is the average lifespan of a radon mitigation system?
The piping lasts for decades; the fan is the wear item and eventually needs replacing. Retest every two years.