Who We Are

We’re underpinning and foundation repair experts servicing the residential and commercial sectors in Sydney & surrounding areas.
Back in the early 1990s, four companies led the field in Sydney for foundation repair and house underpinning solutions. A1 Underpinning was born 28 years ago, when these companies joined forces to be better positioned to deliver exceptional foundation and construction solutions to their clients.
The A1 Underpinning reputation has been founded on a commitment to deliver quality workmanship, reliable service and competitive prices to all of their clients. With innovative approaches, modern equipment and decades of combined experience, the A1 Underpinning team is able to create a solution for almost every foundation repair need.


What We Do

We handle all facets of underpinning, foundation repairs, structural restorations for Sydney homes and businesses. Our specialisations are but not limited to:
How We’re Different

We adhere to OH&S legislation and Australian safety standards. All work is carried out with an absolute commitment to maintaining sites that are safe places for employees, contractors and visitors to carry out business.
Emergencies or urgent projects do not always happen during business hours, however the A1 Underpinning team is available 24 hours a day, 7 days a week to respond to all urgent situations.
For an obligation quote on house underpinning, foundation repair and all our services, feel free to contact Mark today.
