I’m always torn between patching and starting over when stuff like that happens.
Honestly, I lean toward fixing the low spot unless there’s a structural issue. Full re-pour feels like overkill for drainage problems, especially if the rest of the slab is solid. Ever try self-leveling compound? It’s not perfect, but sometimes it’s enough.
I get where you're coming from—patching is usually my go-to unless the slab’s really compromised. Self-leveling compound can work, but there’s a limit to what it can handle, especially if the low spot’s deep or covering a big area. Ever checked for underlying soil movement? Sometimes drainage issues are just a symptom of something shifting underneath, not just surface-level stuff. If you’re seeing new cracks or weird settling, that’s when I’d start thinking about more drastic fixes. Otherwise, patch and move on. No need to overcomplicate it.
“Ever checked for underlying soil movement? Sometimes drainage issues are just a symptom of something shifting underneath, not just surface-level stuff.”
Hadn’t really thought about the soil shifting until I noticed a hairline crack running off from one of the patched spots last year. At first, I figured it was just the patch settling, but then I remembered my neighbor dealing with a whole section of his garage floor sinking after a wet spring. He ended up having to dig around and backfill under the slab, which sounded like a nightmare for both his wallet and weekends.
I’m all for patch-and-go too, but sometimes I wonder if I’m just putting a Band-Aid on what could be a bigger problem down the line. Have you ever had to deal with actually lifting or underpinning part of a slab because of shifting soil? Or is that kind of fix usually overkill unless things get really out of hand? I’m trying to avoid spending big, but also don’t want to redo everything in a couple years...
Title: My Adventure With DIY Concrete Foundations
I get where you’re coming from—patching feels like the easy fix, but sometimes it’s just kicking the can down the road. I had a client’s sunroom where we kept chasing cracks, only to realize the soil underneath was basically marshmallow after a few rainy seasons. Ended up having to bring in a pro for slabjacking, which wasn’t cheap, but honestly, it saved the room (and probably the resale value). I wouldn’t say underpinning is overkill if you’re seeing new cracks or uneven settling. Sometimes, the “big” fix is actually the most cost-effective in the long run, even if it stings up front.
I get the logic behind going straight to slabjacking or underpinning, but I’d push back a bit on jumping to the “big” fix every time. Sometimes, those cracks are more about surface shrinkage or minor seasonal movement than a true foundation failure. Before spending thousands, I’d suggest a step-by-step approach: monitor the cracks for a few months, check drainage and grading, and maybe even do a soil test. Not every uneven floor needs heavy machinery rolling in—sometimes it’s just a matter of redirecting water or patching up minor issues. Just my two cents from seeing folks overcorrect and regret it later.