WE RAISE SUNKEN CRACKED CONCRETE Seattle Foundation Repairs Concrete Lifting and Slab Jacking works with a wide variety of manufacturers of both man made and natural products. So, no matter what your project requires, Seattle Foundation Repairs Concrete Lifting and Slab Jacking have both the products, as well as the experience, to install it right the first time. We meet or exceed all manufacturer installation specifications, and implement our own higher standards of excellence.