Drainage Under Concrete Slab. Should this happen your slab can actually erode a bit over time. It may bend down like a frown at free edges or at joints putting the top in tension. A concrete slab may bend concave up like a smile if the subgrade has a soft spot in the middle putting the bottom in tension.
Trenchless drain repair under your slab costs about a 150 per linear foot and takes about two days to do as opposed to two weeks for excavation for drain repair under the slab. Many drainage issues stem from improper grading techniques during a home or building s construction.
Concrete is porous and will therefore absorb water after a heavy rain.
So now i have water along garage sides year round. Neave knows how to drain water away from your house. But the problems may not end there. As distressing as this news might initially be however it s no longer the end of the world thanks to advances in composite resin technology which occurred as we waved goodbye to the 20th century.