Spokane Radon Mitigation helps homeowners, buyers and sellers in Spokane County, Newport and Kootenai County in North Idaho find out whether radon is a problem in their home and fix it when it is. We work within about 40 miles of downtown Spokane. Radon testing: a technician places a continuous radon monitor in the lowest living level. It records radon every hour for at least 48 hours under closed-house conditions, and you get the full report the day we pick it up. Long-term tests show the average across the seasons. Radon mitigation: we design each system for your foundation, with sub-slab suction for basements and slabs, a sealed membrane for crawl spaces and multi-zone systems for split-levels, and we route the pipe for Spokane snow and frost. We also add a fan to the passive radon pipe of a newer home and replace or repair fans on existing systems. The Washington L&I electrical permit and a post-mitigation test are included in the price. Buying or selling: tamper-resistant monitors, results in 48 hours and a written mitigation quote within 24 hours if the number is high. You get a fixed written quote before any work starts. Call Monday to Friday, 8am to 8pm; we call back with a price, usually the same day.