This is where a Pad, or a pit is dug under the existing footing which can be any where up to 2 metres long, 1 metre wide and 2 metres deep. This is normally dug by machine or by hand if there is not enough room for a machine. The pad is dug further under the existing footing to the width of that footing.




Once the required depth is reached, as per the engineers report, concrete is poured leaving a void between the new concrete footing and the old footing. This void is where a jack is placed for jacking to bring the walls of the building as close to original level as possible. Once the building is jacked to as close as original level the void is packed with dry pack grout and the pit is backfilled.