local radon contractor 4
https://wiki-canyon.win/index.php/How_a_Sump_Pit_Radon_Seal_Protects_Your_Home_from_Invisible_Threats
Had a radon test done last month and the levels came back high. The local radon contractor came out to assess the situation and gave a straightforward quote for a mitigation system. They installed a sub-slab depressurization setup with a quiet fan and sealed the sump pit. The system runs constantly now and my follow-up test showed levels dropped to safe. Relieved to have this handled by someone who knows the area's soil and house foundations.