Radon Mitigation Fairfax › Pricing
Radon Mitigation Pricing in Fairfax, VA
What radon mitigation costs in Fairfax: typical installed price ranges from certified contractors. Matching is FREE for homeowners.
| Service | Typical cost | Notes |
|---|---|---|
| Standard sub-slab system, single suction point | $800 – $1,500 | most basements and slab homes |
| Larger or multi-point system, interior routing, high-level readings | $1,500 – $2,500 | finished basements, additions, levels above 20 pCi/L |
| Crawl-space sub-membrane system | $1,500 – $3,000 | depends on crawl-space size |
| Activating a passive new-construction system (fan added) | $300 – $700 | if the builder stubbed a pipe |
| Certified short-term test | $150 – $300 | 48–96 hours; often waived with a mitigation contract |
| Post-mitigation test | often included | ask for it in the quote |
Good to know
- Ranges reflect the EPA's Consumer's Guide to Radon Reduction and current contractor quotes in the DC, Maryland and Virginia region; your quote depends on foundation type, finished space and the fan needed.
- Matching is FREE for homeowners. We are paid by participating contractors, never by you, and the contractor's price is the same either way.
- Fans use about as much electricity as a 60-watt bulb (roughly $5–$10 a month).
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