Foundation and slab work covers the concrete that everything else in a building sits on: footings, poured or block foundation walls, monolithic and floating slabs, garage and shop floors, and structural slabs for additions. In Charlotte's mix of clay-heavy soil and older neighborhoods with mature tree roots, this category also includes a fair amount of repair work: crack injection, slab jacking or leveling, and underpinning for houses that have settled unevenly. We've cataloged 36 contractors in the Charlotte area who handle this kind of work, ranging from small crews focused on residential slabs to larger outfits that pour commercial foundations.
What to look for before you hire
Soil testing and proper site prep matter more than the pour itself. Ask how a contractor handles grading, compaction, and drainage before concrete goes down, since most cracking and settling problems trace back to what happened (or didn't happen) underneath the slab. Confirm they pull permits and schedule inspections where required, check that rebar or wire mesh sizing matches the load the slab needs to carry, and get a clear answer on cure time and control joint spacing. A contractor who can explain their vapor barrier and reinforcement choices in plain terms is usually one who's done this enough times to have opinions.
How we score contractors here
Our rankings weigh licensing and insurance, how a company handles site prep and reinforcement, responsiveness to quotes, and patterns in customer feedback around warranty follow-through. Full detail on the process is on our methodology page. For the current ranked list of Charlotte's top foundation and slab contractors, see our best concrete contractors guide.