Crawl space encapsulation seals a crawl space off from the ground under it. If your home has a crawl space, we advise full encapsulation, and through Rock Hard Concrete & Construction we also take care of the mold and humidity.
There's no charge for the in-home assessment or the written quote.
A sealed sheet over the soil
How CARST (opens in a new tab) describes radon control where there's no concrete floor
8 years
Rock Hard Concrete & Construction, IICRC-certified, handles the mold
Free assessment and quote
Written, by email, good for 30 days
A liner on its own seals the soil off. A radon system adds a pipe and fan to pull radon from under it, and only a test shows whether your level came down.
CARST, the radon professionals' association, says that where there's no concrete floor, a plastic membrane can seal the house off from the soil, as part of a radon system called sub-membrane depressurization. Health Canada (opens in a new tab) says certified specialists adjust a radon system for your home, "whether you have a foundation slab, crawl space, or sump pit."
Health Canada (opens in a new tab) says sealing can help lower radon levels, but its effectiveness will be limited.
If you don't have a long-term result yet, test first. Health Canada (opens in a new tab) says to fix it if your long-term result is above 200 Bq/m³.
Crawl spaces are tight, and they take a lot of work. A lot of contractors would rather not take them on. We like them.
A crawl space is also one of the things that moves the price of a radon job, along with access, how far the pipe runs to where it vents, and the age of the sump pump.
Yes. Full encapsulation includes the radon pipe and fan, drawing radon from under the liner. That's called sub-membrane depressurization. It's part of the job, not a separate radon system.
Our radon professional is C-NRPP certified for residential radon measurement and residential mitigation.
Some houses have both a crawl space and a basement floor. Those get a dual suction system, drawing radon from under the basement slab and from under the crawl space liner together.
Through Rock Hard Concrete & Construction, we also take care of the mold and humidity. Rock Hard has run for 8 years, is IICRC-certified, and specializes in basement flooding and mold.
We always quote after a visit. There's no charge for the in-home assessment or the written quote. We email the quote, and it's good for 30 days.
We offer payment plans.
A long-term test tells you your radon level. Radon testing covers your options.
We come and look at your crawl space. There's no charge for the visit.
It's good for 30 days. Ask us about payment plans.
Tell us about your crawl space, and your radon result if you have one. We answer every call and form message ourselves, within 24 hours.
Or call 519-991-8180
Monday to Friday, 9am to 5pm. Saturday by appointment.