September 24, 2020 at 9:15 am
#988537
DCan
Participant
Our company has used Advanced Radon Technologies out of Spokane. In the past, Dave has come over to the Puget Sound area for maintenance and installation of mitigation fans for vapor intrusion issues (explained on his website). He has many years experience. I’d give him a call to discuss your concerns. http://advancedradontech.net/