Replacing a worn-out radon fan costs about $250 to $350, parts and labor included, according to Pennsylvania’s Department of Environmental Protection (PA DEP, 2026). EPA says replacement prices vary with labor and materials, and suggests getting estimates from qualified mitigators before work begins (EPA, Consumer’s Guide to Radon Reduction).
The costs at a glance
| What | Typical cost | Source |
|---|---|---|
| Replace a radon fan (parts and labor) | $250 to $350 | PA DEP |
| Add a fan to a passive system in a newer home | About $500 | Colorado CDPHE |
| Install a full mitigation system | $500 to $3,000, depending on the state and house | State programs, below |
| Run the fan for a year | About $95 to $145 | Our calculation, below |
What a full system costs
If you don’t have a system yet, the fan is one part of a full installation. State radon programs report these typical ranges:
| State program | Typical system cost |
|---|---|
| Pennsylvania DEP | $500 to $2,000, averaging $1,000 (PA DEP) |
| Wisconsin DHS | $1,000 to $2,000 (WI DHS) |
| Michigan EGLE | $800 to $2,500 (EGLE) |
| Minnesota MDH | $1,500 to $3,000 (MDH) |
| Colorado CDPHE | $1,300 to $3,000 (CDPHE) |
The price depends on the home’s design, size, foundation and construction materials, the local climate, and how much work goes into hiding the pipe (National Radon Program Services, Kansas State University). A pipe run up the outside wall works well but is more visible; routing it through an interior closet looks better and can add to the cost. For more, see radon mitigation cost.
What a radon fan costs to run
Radon fans typically use less than 90 watts, about the same as a 60- to 90-watt light bulb left on all the time (Kansas State University). Running 24 hours a day, that is:
| Fan power | Energy per year | Cost per year at 18.16¢/kWh |
|---|---|---|
| 60 watts | About 530 kWh | About $95 |
| 90 watts | About 790 kWh | About $145 |
The 18.16¢ per kWh rate is the US average residential electricity price in August 2026 (EIA). Your cost depends on your fan and your local rate: multiply the fan’s wattage by 8.76 to get kWh per year, then multiply by your rate. The system also draws some heated or cooled air out of the house, which adds a smaller amount to heating and cooling bills; good sealing keeps that down (Kansas State University).
Ways to keep costs down
- Check the warranty. Fan warranties typically run five years (Kansas State University), and EPA notes that an extended warranty or service plan can be added to an installation contract (EPA, Consumer’s Guide). Look at your paperwork before paying for a fan.
- Get more than one estimate, as EPA recommends for any radon work.
- Ask about financial help. Some states run assistance programs: Colorado has the Low-Income Radon Mitigation Assistance program (CDPHE), and Minnesota says assistance may be available depending on income and location (MDH).
Before deciding the fan has failed, see the signs a radon fan needs replacing.