The basis of a good residential building is a good foundation. The soil everywhere is different and the volume of work has significant differences, therefore, each foundation is practically unique. Work must begin with the study of the soil at the construction site. The selection of soils is carried out using pits, as a result, they find out the depth of freezing, what type of soil and, of course, the groundwater level. As a rule, the foundation device costs up to 20% of the estimate of the house.
