Spokane Radon Mitigation

Spokane Radon Mitigation offers radon mitigation and radon testing in Spokane, Washington. The business started in 2025. Its team has 3 people, and Mike Kowalski (Owner) is the contact. Its clients are homeowners as well as people buying or selling a house.

Radon is measured with a continuous monitor that runs for 48 hours or longer. The monitor is set up by a technician. It stands on the lowest floor of the house that people live on. It logs one reading per hour. The measurement is taken under closed-house conditions. The complete report is handed over on pickup day. Long-term tests are also available; they give the average level over the seasons.

Every mitigation system is planned around the type of foundation. Sub-slab suction is the method for basements and slabs. Crawl spaces are closed off with a sealed membrane. Split-level houses get a system with more than one zone. Pipe runs are laid out with Spokane snow and frost in mind. Newer houses that already have a passive radon pipe can have a fan added to it. Fans of existing systems are repaired or replaced.

The price covers the Washington L&I electrical permit. A follow-up radon test after the installation is part of the price as well. Before any work begins, the customer gets a written quote with a fixed price. After a call, a price usually follows on the same day.

For home sales, the monitors used are tamper-resistant. Results for a sale come within 48 hours. When the level is high, a written mitigation quote follows within 24 hours.

Typical jobs: radon mitigation system, crawl space radon system, radon fan replacement and radon test for home sales.

The service radius is about 40 miles around downtown Spokane. Towns served in Washington: Spokane, Spokane Valley, Liberty Lake, Cheney, Airway Heights, Medical Lake, Deer Park, Mead, Colbert, Chattaroy, Nine Mile Falls and Newport. Towns served in Idaho: Coeur d’Alene, Post Falls, Hayden and Rathdrum. Counties covered: Spokane County and Pend Oreille County.

Hours: Monday to Friday, 8am to 8pm; closed Saturday and Sunday.