What is the best way to repair concrete?
Find the cause first, then fix it at the right depth. We sound the slab for hollow spots, saw-cut the damaged area to clean vertical edges rather than feathering a patch thin, and fill it with repair material. Hairline cracks on a level, sound slab need crack sealing, not replacement.
Can you put a thin layer of concrete over concrete?
Yes, that is an "overlay", a new top layer bonded to the old slab, and it works only over a structurally sound slab. Active cracks underneath "telegraph" back up through it, so we check the slab before we recommend one. Most of the price of resurfacing is the surface preparation, not the overlay material.
How much does it cost to have concrete repair?
In Wisconsin, crack repair typically runs about $15 per linear foot, and replacing a 100 sq ft section typically runs about $1,836. Your price is set by the area and depth of the damage, and grouping repairs into one visit lowers the cost of each. Our guide to concrete cost covers what else moves the price.
What is the best material to patch concrete?
The one that matches the damage. A hairline crack gets a crack sealer, and a broken joint on a shop or warehouse floor is rebuilt with a high-strength material, then filled with a semi-rigid joint filler. If salt, rust or a moving base did the damage, we deal with that first so the new material has something sound to hold to.