Radon Mitigation Fairfax › Crawl spaces and radon-resistant new construction
Crawl spaces and radon-resistant new construction in Fairfax, VA
Sub-membrane systems and passive-to-active upgrades.
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What it does
Homes with crawl spaces get a sub-membrane system: a heavy plastic barrier sealed over the soil with a suction pipe and fan beneath it. Newer Fairfax homes built with passive radon-resistant features (a stubbed pipe in the attic or garage) can usually be activated by adding a fan, the least expensive fix of all. Both are quoted the same way, FREE, with the contractor's written guarantee.
What is included
- Sub-membrane crawl-space systems
- Activating passive new-construction pipes
- Sealing and encapsulation options
- Combined radon and moisture solutions
Why Fairfax businesses add this
Radon is the second-leading cause of lung cancer after smoking, according to the EPA and the U.S. Surgeon General, and it has no smell or color. About one in every fifteen U.S. homes has elevated levels; in Zone 1 counties like Fairfax County the share is higher. Most Fairfax homeowners find out during a home sale, with a closing date a few weeks away and no idea which contractor to trust or what the job should cost.
What it costs
| 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 |
Get FREE quotes from certified Fairfax contractors
Tell us about your home. We send your request to up to three certified, independent contractors within one business day. No cost to you, no obligation.
Other services
Sub-slab depressurization, the standard fix for basements and slabs.
Radon testingCertified short-term and continuous-monitor tests for home sales and peace of mind.
Radon in home salesBuyers, sellers and agents: a mitigation quote in 24 hours, installed before closing.
Serving Fairfax and Vienna, Oakton, Burke, Annandale, Chantilly. Service areas →