The BEST Underpinning Services in Sydney NSW

As a global ground engineering and asset preservation company, we draw on over three decades of experience and knowledge in leading, developing and delivering the most advanced and accurate ground improvement, re-levelling and void-filing solutions across residential, commercial, infrastructure and mining sectors. With an extensive portfolio of completed projects across Australia, New Zealand, Japan and the United Kingdom, we have achieved a global reputation for delivering innovative solutions to some of the most iconic projects worldwide, earning us international recognition as an award-winning group engineering organisation.

With over 20 years of experience, our custom home building company in Sydney is dedicated to creating your dream home. We pride ourselves on our attention to detail and superior craftsmanship. Let our award-winning team help you build the home you've always wanted

As a global ground engineering and asset preservation company, we draw on over three decades of experience and knowledge in leading, developing and delivering the most advanced and accurate ground improvement, re-levelling and void-filing solutions across residential, commercial, infrastructure and mining sectors. With an extensive portfolio of completed projects across Australia, New Zealand, Japan and the United Kingdom, we have achieved a global reputation for delivering innovative solutions to some of the most iconic projects worldwide, earning us international recognition as an award-winning group engineering organisation.

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.