Can a fireplace make radon levels in my house worse?

Flooding opens new paths for soil gas

Radon comes up through cracks and gaps in the foundation, and floodwater is very good at making new ones — heaving slabs, separating joints, and washing out the seal around plumbing and gas penetrations. Canton's mill-town homes along the Pigeon River took that kind of damage, so a house that tested fine years ago can read differently after a flood. If you rebuilt or repaired down low, put a fresh test kit in before you trust the old number.

Valley fog and dampness that rust Canton dampers early hint at the same moisture moving through the ground below the house.

Inspect the gas side while you're at it

Water-damaged fireplaces and gas appliances need more than a wipe-down — connections, valves, and controls that sat in floodwater have to be checked by someone licensed before they carry fuel again. A sealed [direct-vent gas unit](/services/gas-fireplace-installation) is also the kinder choice over a damaged slab, since it draws combustion air from outside instead of pulling it up through the ground. An open wood firebox does the pulling; a sealed insert stops it.

One licensed company, the right scope

We pull the Haywood County permit, pressure-test the line, and meet the inspector — and after a flood that paper trail protects your insurance and your resale. Radon mitigation, the sub-slab suction system, is a separate specialty we don't install, but we'll handle the fireplace's part and coordinate the timing. Test first; then fix the mitigation and the hearth as one job. We're 20 minutes west of the Asheville showroom. Call (828) 545-0525.