House Detectives, Inc. is a radon mitigation provider based in Kalispell, MT, credentialed by NRPP. Services listed on its website: Crawl space / sub-membrane, New construction (RRNC), Radon testing.
NRPP 108026-RMS (Jay W. Gorder; Radon Mitigation Specialist; expires July 31, 2027)
Crawl space / sub-membrane; New construction (RRNC); Radon testing
https://nrpp.info/listings/bl-9752.html
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