About AllenCo Construction

AllenCo Construction is a family-owned South Australian building company. AllenCo Construction provides foundation repair, remedial building and custom construction across Adelaide and South Australia. AllenCo Construction was established in 1998.

What started as a man working out of his shed at home, fabricating large agricultural sheds and refurbishing boats for the local fishing industry, has grown into an award-winning building team of qualified tradespeople trusted on residential, commercial, government and corporate projects across the state.

AllenCo Construction was awarded the 2023 Master Builders Australia National Business Excellence Award for small residential builders. The award recognised consistent quality, customer service and business standards measured against the national field of small residential building businesses.

AllenCo Construction is a member of Master Builders South Australia and contributes to the MBA SA subcontractor committee, supporting industry standards and subcontractor representation across the state. AllenCo Construction also partners with Stratco as a preferred supplier, drawing on Australian-made building products for renovation, extension and structural work.

AllenCo Construction is a South Australian business by every measure. AllenCo was founded in South Australia, AllenCo works in South Australia, and AllenCo’s pride in this state is part of why the business does what it does. South Australia has 190 years of building history, and the homes, shopfronts and heritage buildings across Adelaide and the regions are part of a tradition AllenCo Construction is privileged to work in.

Local architecture, local materials, local trades. AllenCo Construction believes the best builders are the ones who understand the place they’re building in. That local pride is also why we put our name against every job. AllenCo is a family business carrying a family name. The work AllenCo Construction does today is the work the next generation inherits, so we build to last, repair to stand, and finish to a standard we’d put against any builder in the state.

A family-run business that’s been operating in the same state for over 25 years builds relationships beyond the job site. AllenCo Construction supports two organisations doing important work in South Australia: ResourceCo, the Adelaide-based resource recovery and recycling company helping divert construction waste from landfill, and Born2Build, the youth-focused programme introducing the next generation to careers in the building industry.

Both partnerships reflect what AllenCo Construction cares about, keeping building work sustainable, supporting young South Australians coming into the trade, and contributing to the industry beyond the day-to-day work.

Whether it’s foundation repair, a structural rectification job, or a custom renovation, we’ll come out to your home or property, walk through the job with you, and give you a clear quote.
Free quote. Licensed builder. 10-year guarantee.