Sydney’s Leaders in Underpinning & House Foundation Repairs

Welcome to A1 Underpinning! We’re underpinning and house foundation specialists you can rely on in Sydney & surrounding areas.
With over 28 years industry experience, we can respond to your foundation repair needs 24 hours a day, 7 days a week.
Common House Foundation Issues
Cracked walls, jamming doors, cracks in Gyprock, gaps beside windows and broken drains are all common house foundation issues that need to be checked and fixed if required.
Most of the issues often require a brick pier replacement, foundation repair or house underpinning solution. While the problems can start out small, left unchecked, damaged or subsiding foundations can lead to future structural issues that can range from the expensive to the irreversible.
If you happen to experience one of the problems mentioned above, feel free to reach out to us.

Why Do You Need Underpinning?

How We Can Help You

For the past 28 years, our team is delighted to have been providing cost-effective, reliable, safe and professional underpinning and house foundation services to homes and businesses in Sydney. We use the latest techniques to deliver house underpinning and foundation repair solutions for even the most complex of projects.
So for all your house foundation, underpinning and structural restoration needs in Sydney, do not hesitate to contact us.
Our Efficient Underpinning Process
Our Services

House Underpinning
Is your Sydney home showing signs of foundation issues? Are you seeing cracks in the walls or doors that won’t close properly? These can be signs of underlying severe troubles with your structure. Or you might be planning to do significant renovations requiring excavating part of your foundation. In either case, underpinning can help stabilise your home’s foundation, prevent further damage and secure your building.

Foundation Repairs
Wondering if your property needs foundation repairs? Signs include, cracks in the walls or floors, doors and windows that stick or won’t open and close properly, gaps between the ceiling and walls, and sagging or uneven floors. If you notice any of these signs, it’s important to have a professional assess the situation. At A1 Underpinning, we can check your house foundations and advise you on the best course of action.

Brick Pier Replacement
There are many reasons why you might need to replace your brick piers. If the piers are cracking or crumbling, they may no longer be able to support the weight of your home. If the piers are settling, they can cause the foundation of your home to become unstable. If you suspect that you may need to replace your brick piers, contact us and we will assess the condition of your piers and recommend the best course of action.

Concrete Crack Repairs
Concrete cracks are inevitable and can happen for a variety of reasons. Whether it’s due to settling, tree roots, freezing temperatures, or simply wear and tear, cracks in your concrete can create serious problems if left unaddressed. Not only can they be unsightly, but they can also lead to water infiltration, which can cause further damage to your foundation, walls or slab. Call for a quote.

Jammed Door Repairs
If your door becomes stuck or jammed, it can be a sign of underlying issues with your structure. Not being able to open or close your doors or windows can make it difficult to get in or out of your home and can pose a serious security risk. In most cases, jammed doors can be a sign of more serious issues with your foundation, especially if your building is old or your building is built on unstable ground.

Wall Crack Repairs
There are a few different scenarios in which you might need to contact a professional for wall crack repairs. If you notice cracks in your walls that seem to be getting larger or more numerous it may be time to call a professional. Wall cracks are very often an indicator that you have foundation problems. If you notice cracks in your walls or ceilings, contact us for a foundation inspection.
Why Choose Us
Our Recent Projects
Underpinning & Foundation Repairs FAQs
We’ve taken the liberty to answer some of the most common yet critical questions pertaining to Sydney underpinning, foundation repairs and structrucal restorations.