Radon Mitigation in Lyman, SC
Lyman nearly doubled in a decade, but its roots are in the Pacific Mills mill village. Whether your house dates to the 1920s or the 2020s, radon is a question only a test can answer.
Get a Free Quote Call (727) 300-6656Lyman radon: what the county numbers say
Lyman is in western Spartanburg County, which the EPA places in radon Zone 2. That is a moderate rating, not a clean bill of health. The EPA recommends testing every home in every zone.
Spartanburg County test results from the state radon program back that up. Across 1,136 initial tests the average was 2.6 pCi/L, already in the 2 to 4 range where the EPA suggests considering a fix. The highest reading was 41.0 pCi/L, roughly ten times the 4 pCi/L action level.
The EPA estimates radon is the leading cause of lung cancer among people who have never smoked. It has no smell or color, so a test is the only way to find it.
Mill-village houses and a building boom
Pacific Mills built the town's mill village, with roughly 375 homes by 1927. Many of those houses are still lived in. Homes from that era usually sit on piers or crawl spaces, with bare soil beneath the floor. That open ground is exactly where radon enters.
Then came growth. Lyman's population rose 90.3% from 2010 to 2020, and new subdivisions filled in around the older core. About 91.7% of homes here are owner-occupied, so most residents are making long-term decisions about the house they live in.
New homes in Spartanburg County are not required to include radon-control construction. That is only required in Greenville County.
Radon work we do in Lyman
We match the system to the foundation instead of selling one kit for everything.
- Crawl space radon mitigation for mill-era and other crawl homes, typically $1,500–$3,500.
- Sub-slab depressurization for newer slab homes, typically $900–$2,500.
- Radon testing from about $150 for a short-term professional test.
- New-construction radon planning and activating radon-ready pipes.
Homes with both a crawl space and a slab section often need a combination system, typically $2,200–$3,800. Every quote is written and clear, and every install is followed by a radon test.
Free radon quote for your Lyman home
Old mill house or new build, tell us what you've got. We'll get back to you, usually the same day.
Lyman radon FAQ
Are the old Pacific Mills homes in Lyman more likely to have radon?
Age alone doesn't decide it, but many mill-era homes sit on crawl spaces with exposed soil, which gives radon an easy path in. Spartanburg County tests averaged 2.6 pCi/L with readings as high as 41.0. A short-term test tells you your actual level before you spend anything on a system.
Can you mitigate a Lyman crawl space home without a full encapsulation?
Usually, yes. A sub-membrane system seals heavy plastic over the crawl space floor and uses a fan to pull radon from underneath, typically $1,500 to $3,500. Full encapsulation is optional and costs more, from $1,500 to $15,000 depending on size and condition.
Do I need to be home during a radon install in Lyman?
Someone should be there at the start so we can confirm the pipe route and fan location with you, and at the end to see the finished system. Most installs take a few hours. A follow-up test afterward confirms that levels came down.
Close to Lyman
Neighboring towns along the I-85 and US-29 corridor.
Know your number. Fix it if it's high.
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