Have you noticed that your foundation is cracking or sinking? This could be due to the soil on which the structure was built. In Cambridge and Greater Boston, a wide variety of soils can be found, some more reliable than others. S+H Construction knows what measures must be taken when faced with unstable building soil. While it is possible to fashion a waterproof fieldstone foundation in a difficult area, they encourage potential property buyers to look below the surface before closing the deal.