I recently checked out my crawlspace after a couple of days of on-and-off rain, and while I noticed some surface water pooling around my house, the crawlspace itself didn't have any standing water. The soil there was slightly moist near the foundation but dry towards the center. I'm thinking about regrading my lawn to direct water away from the foundation or maybe even installing a perimeter French drain.
A contractor suggested I should put in a sump pump and an interior drain system, citing potential moisture issues. But another contractor disagreed, saying that since the soil is mostly dry, a sump pump might be unnecessary and recommended some drainage mats instead. I'm seeking opinions on whether I truly need a sump pump in this situation.
2 Answers
I'm curious why you'd want to seal your crawlspace off completely. If you do, you need to also introduce conditioned air from your HVAC system. Did the contractors talk to you about that? A dehumidifier might help you avoid mold issues, though. It's smart you're looking into this. I had to deal with mold in my old house too and it wasn’t fun. Just be sure to watch the air circulation!
In my area, we recently encapsulated our crawlspace, and it turns out having a sump pump is actually a requirement by code. Our house is built into a slope, and honestly, I didn’t think standing water would be a concern either, but codes can be tough. I found that having a dehumidifier made a bigger difference for us, especially with all the humidity in the air here.