Home Renovations Adelaide - Custom Renovation Builders

Custom home renovations built to last, from a licensed builder with 25+ years across South Australia.

0429 999 478

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Licensed Builder

Fully Insured

25+ Years Experience

10-Year Guarantee

25 +

years building across SA

10 +

years guarantee on all our work

2023

MBA National Excellence Award

AllenCo Construction

Adelaide's Custom Home Renovation Builders

AllenCo Construction is a custom home renovation builder working across Adelaide and South Australia. We renovate, extend and transform existing homes for owners who want quality workmanship and a finish built to last, not a rushed job from a volume builder.

As a family-owned business operating since 1998, our reputation is on the line for every renovation we take on.

0429 999 478

About Us

Our Services

Our Home Renovation Services

Whole-Home Renovations

Complete home renovations that transform tired, dated houses into modern homes, from a single licensed builder managing the whole project.

Kitchen Renovations

Custom kitchen renovations designed around how you live, built with quality materials and finished to last.

Bathroom Renovations

Bathroom renovations that balance function and finish, from full rebuilds to refreshed layouts.

Home Additions

Extra living space added to your existing home, built to match and flow with the original house. Learn about our extensions and additions.

AllenCo Construction

Custom Renovations, Built Your Way

A great renovation starts with understanding how you want to live. AllenCo Construction specialises in custom home renovations, creating spaces using rustic, salvaged and recycled materials where available, alongside new products from brands you know and trust.

We work across a range of architectural styles, including European, Old World, Industrial, Minimalist, Traditional and Modern. We combine that range with a genuine understanding of each client’s style to turn an existing house into the home you actually want.

We’re not a volume builder. We’re a custom builder, we take the time to get the detail right, and our work stands the test of time.

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0429 999 478

Why Choose Us

Why Choose AllenCo Construction

Custom Builder

We don't do quick fixes or cookie-cutter renovations. Every home we renovate is built to last and finished to a standard we'd put our name to.

Award-Winning Builder

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

Fully Insured Licensed Builder

All renovation work carried out under our builder's licence with $10M public liability cover, and backed by our 10-year guarantee.

Family-Owned Since 1998

A South Australian family business with over 25 years of renovations behind us. The people who quote your job are the people who do the work.

What Our Customers Say

    
 
 
       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.

Our Process

How It Works

Every renovation we take on follows the same 4 steps, so you know exactly what to expect from start to finish.

0429 999 478

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1. Free Consultation

We visit your home, talk through your ideas, your style and your budget, and get a clear picture of what you want to achieve.

2. Design & Quote

We develop the design with you and provide a clear, fixed quote for the renovation, so there are no surprises down the track.

3. The Build

Our licensed team carries out the renovation, managing the whole project and keeping you updated at every stage.

4. Handover

We walk through the finished renovation with you and don't call it done until you're completely happy with the result.

AllenCo Construction

Renovations of Every Type

AllenCo Construction renovates homes of every type across Adelaide and South Australia, from period character homes to modern builds. We work with the home you’ve got, whether that means restoring an older home with respect for its original detail or reworking a newer home to match the way you live today.

Heritage and character homes are renovated carefully, preserving the features worth keeping while bringing the rest up to a modern standard. Larger whole-home renovations transform tired, dated houses into homes built for how families actually live. Whatever the style, every renovation is backed by our 10-year guarantee, because quality workmanship should last as long as the home it’s in.

Contact Us

0429 999 478

Let Us Restore It

Get Your Renovation Started

Join South Australian homeowners who’ve transformed their homes with AllenCo Construction.
Free quote. Licensed builder. Custom workmanship.

Start Your Project

0429 999 478

Get a Free Renovation Quote

*Thinking about renovating? Let’s talk through what you want to achieve. We come to you, walk through your home, discuss your ideas and budget, and give you a clear, accurate quote.