AllenCo Construction's Services

Foundation repair, remedial building and custom construction across Adelaide and South Australia.

25 +

years building across SA

10 +

years guarantee on all our work

2023

MBA National Excellence Award

AllenCo Construction

A Family-Owned Adelaide Builder Since 1998

AllenCo Construction provides foundation repair, remedial building and custom construction services across Adelaide and South Australia.

From underpinning and structural crack repair through to whole-home renovations and second-storey extensions, every service we offer is delivered by the same licensed family-run team. As a South Australian building company operating since 1998, our reputation is on the line for every job we take on.

0429 999 478

About Us

Our Services

Underpinning

Reinforced concrete bored piers and structural foundation repair for homes affected by reactive clay soil and foundation movement.

Remedial Building

Crack stitching, mortar repointing, masonry reinforcement and rendering for homes with structural damage left behind by foundation movement.

Wall Crack Repair

Structural crack repair, cracked brick wall repair and leaning brick wall repair for homes across South Australia.

Home Renovations

Custom home renovations, from whole-home transformations through to kitchen and bathroom renovations and home additions.

House Extensions

Single-storey and second-storey extensions designed around your home and built to match the original house.

Commercial Underpinning

Foundation repair and structural underpinning for commercial properties, with full SWMS documentation and $10M public liability cover.

See What Our Customers Are Saying

    
 
 
       Posted on Google  
   
   Tim Leeuwenburg 
 
 
 
 Trustindex verifies that the original source of the review is Google. The team at AllenCo have helped us out with underpinning on a couple of places and have been excellent and knowledgeable
  
 
      Posted on Google  
   
   Romeo Vella 
 
 
 
 Trustindex verifies that the original source of the review is Google. AllenCO have just completed an underpinning job at my property and I have been impressed from start to finish with their attitude, workmanship and professionalism. I would highly recommend them to anyone faced with undertaking this work.
  
 
      Posted on Google  
   
   Angus Hards 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a fantastic experience with Allenco. I own St Canice Catholic Church in Snowtown, which I purchased two years ago, and unfortunately the building required significant underpinning due to major cracks opening up in the brickwork.
From start to finish, the team at Allenco were professional, knowledgeable, and extremely thorough. Underpinning a historic building is no small task, but they approached the job with care, precision, and clear communication throughout the entire process. Their workmanship and attention to detail gave me real confidence that the structure is now secure for the long term.
I truly appreciate the quality of their work and would highly recommend Allenco to anyone needing structural or underpinning services. A very professional outfit and well deserving of 5 stars.
  
 
      Posted on Google  
   
   Jo Lush 
 
 
 
 Trustindex verifies that the original source of the review is Google. Cody was very thorough and careful to explain everything during his initial visit to quote for underpinning at our house. When his workmen arrived to begin on the first day I was impressed that they all took time to introduce themselves to me and answer any questions. The team varied across the time of the works, but they always kept us updated on what was happening. They were neat and tidy and made sure everything was tidy and safe at the end of the day. They consulted with us and took care with our gardens and lawns. Cam, Liam, Kyle, Mark, Jersey, Leo and the others were a delight to have doing the work and I would highly recommend them.
  
 
      Posted on Google  
   
   Sue Watson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Cody gave us valuable, honest advice. He went over and above to help. Would highly recommend.
  
 
      Posted on Google  
   
   Farron Studt 
 
 
 
 Trustindex verifies that the original source of the review is Google. Appreciate all the work from Cody and the guys, very easy to deal with, kept things tidy and got the job done with no fuss.

Why Choose AllenCo in Adelaide?

Why Choose AllenCo Construction

Award-Winning Builder

Winner of the 2023 Master Builders Australia National Business Excellence Award for small residential builders.

Licensed Builder, Fully Insured

All building work carried out under our builder's licence with $10M public liability cover.

25+ Years Building Across SA

A South Australian family business operating since 1998. The people who quote your job are the people who do the work.

10-Year Guarantee

We come to you, inspect properly, and give you a real quote based on what we actually see.

Let Us Restore It

Get Your Project Started

Whether you need foundation repair, a custom renovation or a commercial structural repair, we’ll come out, walk through the job with you, and give you a clear quote.

Get Your Free Quote

0429 999 478

Get Your Free Quote!