Resurfacing or replacing a garage floor
The first thing I check is whether your old floor is solid underneath, and I'll tell you straight what I find. Surface wear, pitting and stains on a slab that hasn't moved usually point to resurfacing. Wide cracks, sections that have sunk or tipped, or a floor that rocks under your foot mean the base has let go, and a new top won't fix that. That's when it's time to tear out and pour new.

