Through his work restoring heritage buildings, he found a substantial number of significant cracks were due to ageing, or poorly constructed foundations, and or soil movement. He then went on to further specialise in structural underpinning.  The method of concrete structural underpinning he offers, enables him to guarantee permanent crack repair and the structural stability of his restoration works.

Now specialising in structural underpinning exclusively for the past 10 years, Toby and his team from Northern Underpinning have reinstated structural integrity to hundreds of buildings, both commercial and residential across South Australia.