While constructing or renovating buildings and structures, the foundation needs to be strong enough to hold the structure solidly. Underpinning is the actual process of... moreWhile constructing or renovating buildings and structures, the foundation needs to be strong enough to hold the structure solidly. Underpinning is the actual process of strengthening these foundations resulting in better stability and durability to these structures. Visit to our website for details on Underpinning Sydney