A radon mitigation system in Colorado typically costs $800-$2,500, with many straightforward installations near $1,400. The final price depends on the home’s foundation, number of suction points, pipe routing, electrical access, and local labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Active radon system | $800 | $1,400 | $2,500 | Typical single-family home |
| Complex installation | $2,500 | $3,400 | $4,500 | Multiple levels, difficult access, or extra suction points |
| Post-installation test | $100 | $175 | $300 | Independent test or professional measurement |
| Fan replacement | $150 | $275 | $450 | Installed replacement, depending on fan and access |
What Colorado homeowners pay for a standard system
A standard active soil depressurization installation generally falls between $800 and $2,500. This assumes a single-family home with an accessible basement or slab, one suction point, exterior PVC venting, a continuously operating fan, and ordinary electrical access. A practical statewide planning figure is about $1,400, though Denver-area and mountain-area quotes can differ.
Pricing may be higher when the installer must add suction points, route pipe through finished rooms, work around a complex foundation, or install a system in a crawlspace. Smaller homes are not automatically cheaper: foundation layout and access can matter more than total square footage. For an uncomplicated home, budget about $1,000-$1,800 before testing or unusual repairs.
Assumptions: One system, standard materials, normal access, and no major foundation or electrical repairs.
How fan, piping, and labor appear in Colorado quotes
Most estimates combine materials, installation labor, and system setup. A written quote should identify the suction point, fan location, pipe route, electrical connection, and whether post-installation testing is included. The following ranges are approximate components, not fixed add-ons; contractor pricing may package them together.
| Quote component | Typical range | Pricing basis | What changes it |
|---|---|---|---|
| PVC pipe and fittings | $100-$350 | Materials per system | Pipe length and number of bends |
| Radon fan | $150-$400 | Fan unit | Capacity, noise rating, and placement |
| Labor and setup | $450-$1,300 | Usually 5-10 hours | Foundation type and access |
| Electrical work | $100-$500 | Per connection or circuit | Distance to power and code needs |
| Permits or disposal | $0-$250 | Local fees or job charges | City requirements and removed materials |
Labor often prices out around $75-$150 per hour when shown separately. Ask whether the quote includes the fan, electrical work, sealing, system labeling, and a clear follow-up test plan.
Why foundation size and suction points change the price
Foundation design is a major cost driver. A straightforward basement or slab may need one suction point, while a home with separated foundation areas or additions may require two or more. Each added suction point can add roughly $300-$800, depending on drilling, pipe runs, and whether separate fans are necessary.
Home size is relevant but not a simple per-square-foot formula. A 1,500-square-foot basement with an open layout may be easier to treat than a 1,000-square-foot home divided into isolated slabs. Crawlspaces may require a sealed membrane over exposed soil, commonly adding $1-$3 per square foot for material and installation, with difficult access pushing the total higher.
Long pipe routes also raise labor and material costs. Runs over 30-40 feet, concealed routing through finished spaces, or venting above the roofline can add several hundred dollars. Ask the installer to explain why each extra suction point or pipe route is needed for the measured radon level and foundation layout.
What Denver, mountain, and rural locations do to quotes
Colorado pricing varies with contractor availability, travel distance, and access. Denver and other Front Range cities often have more competing providers, while mountain communities may face longer travel, limited scheduling, and higher labor or delivery charges. Rural homes can also incur a trip fee when a contractor must travel a substantial distance.
As a budgeting estimate, mountain or remote projects may run about 10%-25% above a comparable Front Range installation. A difficult-access property or long-distance service call can exceed that range. Local permit charges, if applicable, are set by the jurisdiction rather than by a statewide price schedule.
Compare at least two written quotes that describe the same system scope, not just the bottom-line price. A lower bid may exclude electrical work or post-installation measurement, while a higher quote may include those items.
When crawlspaces or finished basements need extra work
Standard installations often take 5-10 hours, typically completed by one or two technicians. A crawlspace requiring a continuous vapor barrier, extensive sealing, and a suction connection can take a full day or longer. Finished basements may also require additional time to conceal piping or avoid built-in storage and mechanical equipment.
Common extras include electrical upgrades at $100-$500, patching or cosmetic work at $100-$600, and crawlspace membrane installation priced by area. If the existing foundation has multiple isolated zones, a second suction point or system can add $300-$1,000 or more. Have the installer list optional work separately so the base mitigation price remains clear.
How to verify performance and budget for fan upkeep
After installation, a radon test checks whether the system has reduced indoor levels. A professional follow-up test commonly costs $100-$300; some contractors include it, while others recommend an independent measurement. Short-term tests can provide an initial check, but test method and timing affect interpretation.
Fans generally run continuously and may last about 5-10 years, depending on conditions and product. Installed replacement commonly costs $150-$450. Electricity may add roughly $50-$150 per year, depending on the fan’s wattage and local utility rates. A visible pressure indicator can help show whether the system is operating, but it does not replace periodic radon testing.
Confirm who performs the post-installation test and whether the price includes a written result. A warranty may cover the fan or workmanship for a defined period, but coverage differs by provider.
Which permit and testing charges belong in the estimate
Permit rules vary by Colorado city and county, and not every jurisdiction treats radon work the same way. Fees may be absent or around $50-$250 when a permit or related inspection applies. Electrical changes can trigger separate requirements, so the estimate should state who checks local rules and pays any fee.
Testing before mitigation is also a separate budget item when a homeowner does not already have a reliable result. Professional testing often runs $100-$300, while a qualified do-it-yourself test may cost less. The mitigation quote should not imply that installation alone proves a home meets a target level.
Request the test method, permit responsibility, and any inspection charge in writing before work begins. This helps prevent a low initial quote from growing after scheduling.
How to reduce the system price without weakening coverage
Provide existing radon test results, foundation plans, and photos of the basement or crawlspace when requesting estimates. This can help contractors identify the likely scope before a visit. Compare bids with the same assumptions for suction points, pipe route, electrical work, testing, and warranty.
Keep pipe runs short where practical, but do not accept a route that conflicts with safe vent placement or manufacturer instructions. If cosmetic concealment is optional, compare exposed exterior piping with more complex interior routing. Avoid paying for extra fans or upgrades without a clear reason tied to the home’s layout or measured performance.
The most reliable savings come from controlling optional work and comparing complete scopes, not choosing the smallest fan or skipping verification.