Paid $450 for a radon mitigation system that did nothing for 3 months

We bought a place in Aurora back in March and the basement radon test came back at 6.8 pCi/L. Hired a local company to install a sub-slab system, they charged $450 and said it would drop below 2.0. Three months later I bought my own digital monitor out of curiosity and it's still reading 5.9. Called them back and they basically shrugged, said 'soil conditions vary' and offered to install a second fan for another $300. Has anyone else dealt with a mitigation system that just didn't work? What did you do besides throwing more money at it?

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parkera222mo ago

honestly I'd question if this is even worth stressing over. 5.9 is above the EPA action level but it's not like you're living in a uranium mine. people freak out over radon numbers like it's the end of the world but the actual risk difference between 2 and 6 is pretty small in the grand scheme of things. plus those cheap digital monitors are notorious for being inaccurate, i'd bet money yours is reading high. before you drop another $300 on a fan i'd borrow a professional test kit or get a charcoal test done for like $20 and see what that says. if it still reads high after that, then yeah maybe get a second opinion, but honestly i think you might just be feeding into the fear factor here.

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