Foundation Repair & Remedial Building Specialists in Adelaide
Fixing cracked walls, sinking foundations, and subsiding homes across South Australia.
Licensed Builder
Fully Insured
25+ Years Experience
10-Year Guarantee
A Complete Solution for Your Footing Repairs
When a foundation moves, the cracks are only the surface of the problem. Most builders handle either the underpinning or the wall repairs, allenCO can handle both.
AllenCO Construction provides remedial building and underpinning across Adelaide and South Australia. We diagnose the cause, strengthen the footing, and complete the wall crack repairs ourselves. We are South Australia’s premier repairer of soil-related building movement.
Foundation Repair Services
Underpinning
Remedial Building and Rectification
Wall Crack Repair
Site specific solutions, Not Guesswork
Footing repair isn’t a place for shortcuts or trialling the latest techniques. The methods we use have been tried and tested locally for decades. Every job we quote incorporates a proper investigation into your footing movement before we break ground.
We use steel-reinforced concrete piers founded deep into stable ground. If conditions allow we are capable of lifting your home back to where it ought to be to close cracks and voids opened by years of soil related building movement. Our work is performed by in house suitably qualified tradespeople and is supervised by our team of licensed builders from first inspection to final coat of paint. No guesswork. Just work that holds up.
Why AllenCo Construction
Underpinning and remedial building shouldn’t be a juggling act between contractors. Here’s what sets us apart, and why homeowners across South Australia trust us to take the whole job on, from the first crack inspection through to the final coat of paint.
One Licensed Builder
In-House Solution
Proper Diagnosis
10-Year Guarantee
What Our Customers Say
How It Works
Every structural repair job we take on follows the same four steps, so you know exactly what to expect and what comes next.
1. Free Quote
2. Excavation
3. Underpin Installation
4. Rectification
Footing Repairs That Actually Last
Engineered to Last
Proper Diagnosis
In-House Remedial Works
10-Year Guarantee
AllenCo Construction, Adelaide's Choice
Locally Owned and Operated
Licensed Builder
Award-Winning Builder
Free On-Site Quotes
Our Other Building Services
Family-Owned South Australian Builder Since 1998
AllenCo Construction is a South Australian family-owned building company specialising in foundation repairs and remedial building services. We’ve been building, underpinning and repairing homes across the state for over 25 years, and we put our name against every job we perform.
We’re locally owned and operated, Master Builders SA members, and proud holders of the 2023 Master Builders Australia National Business Excellence Award. Most importantly, our customers tell us the same thing time and time again: we treat your house like our own.
Get a Free On-Site Quote
Cracks getting wider? Doors sticking? Floor dipping in the middle of the room? Don’t guess at the cause, get a proper diagnosis. We’ll come to you, inspect your home or property, arrange the necessary drainage and engineering reports, and give you a clear, accurate quote.