Phone: 0411 487 203 | Cambridge Gardens, NSW
Sydney's Leading Experts In Underpinning & Foundation Repairs
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.

Phone: 1300 393 526 | Unit A, 26 Cassola PlacePenrith NSW 2750, Penrith, NSW
When you entrust us to carefully undertake your project, we understand the importance this holds for you and your family. Whether you're growing your investment portfolio, or building for precious family members, Dwelcom has the complete balance to suit.
At Dwelcom, we recognise that excellence is deliberate. We believe that enduring quality cannot be achieved without purpose, determination, and hard work.
A family company with deep roots in the Western Suburbs of Sydney, Dwelcom is backed by decades of shared construction knowledge. Specialising in Secondary Dwellings ensures a seamless outcome for all of our Granny Flat projects. Through every step of the way, our close-knit staff are keen to treat each of our clients with the same consideration we'd expect for our own families.
From management to site staff, consultants to administration - our team are well-equipped to plan, prepare, and construct the exact building that you'll be proud to call 'home' - a gift from our family to yours.
