Is it worth leveling an old patio or should I replace it?

If the concrete is structurally sound with no widespread deterioration or full-depth cracking, leveling is almost always worth it. Replacement involves demolition, disposal, forming, pouring, and a week of curing time at 3 to 5 times the cost. Leveling restores function and drainage in hours. If the surface is worn but structurally intact, leveling plus resurfacing is often the best combined approach.