Underpinning is the process of strengthening the foundations of a building, generally by extending the footings downwards. This is an integral and extremely important part of basement conversions.
Our highly skilled team of structural engineers and on-site workers have years of experience of basement underpinning. Therefore you can be safe in the knowledge that your 4Site excavation will be completed in line with all necessary and appropriate regulations. We will ensure that your basement conversion is not only safe, but it will withstand the test of time.