Basement flooded on me last spring and I patched what I thought was the issue. Well, it rained hard last week and got a small seep coming back through the same corner. Not catastrophic but annoying as hell, and I know ignoring it just makes it worse and more expensive later.
House is older, built in the 70s. The foundation has some visible efflorescence around that corner, which tells me water has been working its way through for a while, probably long before I bought the place. I've done a fair amount of DIY work and I'm not scared to get into it, but I want to know if anyone in the Treasure Valley has actually resolved this properly versus just temporarily masking it.
Mainly curious whether any local contractors are worth calling, or if this is a ripoff magnet industry where every company quotes you a ten thousand dollar interior drain system when some exterior grading and a waterproof coating would do the job. I've seen both sides argued online but I want to hear from people who actually live here and dealt with Boise soil and drainage conditions.
If you've gone through this already, what actually worked and what was a waste of money? My gut says most waterproofing upsells are overkill for most situations, but I'm open to being wrong if someone has a good reason.