The 5 best construction companies in Adelaide for your new home, renovation, or big build
Before your dream home, renovation, or high-rise building becomes a reality, it takes time, planning, and investment. Even when that’s all in place, one big question remains: Who’s going to build it?
As much as it’s appealing to just hire relatives or friends with a background in carpentry so the money stays close to home, that approach doesn’t always work out. They could back out halfway through—or worse, take advantage of your trust and misuse the budget.
These best construction companies in Adelaide will make sure that doesn’t happen. Trusted, skilled, and experienced, they’re committed to partnering with you throughout your new home, renovation, or commercial build.
| How much does hiring a construction company cost in Adelaide? In Adelaide, hiring a construction company costs between $1,860 and $3,800 per square meter for new home builds. Renovations and large-scale developments have different pricing structures, with builder hourly rates ranging from $85 to $150. Other factors influencing the cost include the type of materials used (brick, timber, etc.) and complexities like unique designs or custom features. There’s also construction project management, which is 3% to 5% of the total cost, if they’re managing the entire build. |
1. GSC Building Consulting & Construction
Address: Level 8, CBD 30 Curie St
Phone: +61 414 690 594
Business hours:
- Monday-Friday, 6:00 AM to 6:00 PM
- Saturday, 8:00 AM to 4:00 PM
As its name suggests, GSC is all about building, consulting, and construction. That means, alongside their quality workmanship in custom homes, renovations, office extensions, and more, they can also take care of project management—if you want them to.
Clients who’ve entrusted all the work to GSC either wouldn’t hesitate to use them again or have felt proud of their decision to choose the company. They found the team honest, reliable, and communicative, which helped the build flow smoothly and deliver great results.
On top of that, they have a fixed-rate pricing discussed during the initial consultation. One thing that doesn’t sit well with some customers is the additional costs that pop up later—usually for materials not included in the original estimate.
It helps that they provide detailed reports at every stage, so clients are still always in the know. This level of transparency carries over to their building inspection services, giving families and individuals the clarity they need before committing to a new home.
Honest, reliable, and excellent project management skills
“I highly recommend George from GSC Consulting and Construction. George, is honest, genuine and reliable & I would use them again in a heartbeat. We randomly found GSC through a google search when looking to convert an existing Stratco style outdoor shed into a granny flat with a living space (including kitchen), bedroom, bathroom and toilet. This project required full plans/drawings and Development Approval as well as project management of relevant contractors throughout the build process. George’s customer service and approachability was outstanding and through this as well as his excellent project management skills he was able successfully and seamlessly deliver each stage to a very high quality on time and within budget.”
- Andrew Queisser, Google Review
Communication was second to none — so happy with the results
“George was exceptional from the moment I made contact for my bathroom renovation, right through to handover. He always kept me in the loop with the entire process. Selections at beaumonts were fantastic, with such a wide range of tiles, tapware, basins and baths – and Sathish helped to perfect these selections with George’s practical input. George’s communication was second to none, and he was always honest which I really appreciated. I’m so happy with the results from the transformation. I would highly recommend George and his team.”
- Candice McCue, Google Review
2. Allenco Construction
Address: 72/76 Edmund Ave
Phone: +61 429 999 478
Business hours: Monday-Saturday, 7:00 AM to 5:00 PM
Allenco’s specialty lies in renovations, custom homes, and extensions. Their skilled carpenters, engineers, electricians, earthmovers, and laborers have delivered these services for over 25 years—not only in Adelaide, but all over South Australia.
It’s worth noting that they use recycled materials like reclaimed timber and innovative products such as garden beds and sheds from trusted brands like Stratco. With that, clients always end up loving the finished product that’s built with care, on time, and by an easygoing team.
It’s things like these that got them shortlisted at the prestigious Master Builders Association National Business Excellence Awards in 2023. Not to mention the stone homes and commercial spaces they’ve restored, thanks to their underpinning and foundation repair expertise.
Despite all the positives, their customer service and online quote system could use improvement. One caller felt dismissed by a rude operator and never received a follow-up, while another reported waiting weeks for a reply after submitting a request form on the website.
On-time end product and staff were great to get along with
“I was able to work together with them in designing a palace fit for a king. It first started off with retrofit of kitchen, bathroom and walls, with recommendations they made they made a fantastic studio apartment which I am proud of. They were able to adapt to accommodate with customers’ requirements and deliver on the end product on time. The staff were great to get along with. Electrician, Builder, apprentice and employees were all easy going. What ever your needs are, these are the guys to rely on.”
- Mark Lokan, Google Review
Excellent underpinning experience and accommodating tradespeople
“Thank you so much to Cody, Mark and the team for underpinning my home in Evandale. The whole experience was excellent from the initial consultations, the job itself (a very complex exercise), the courteous and accommodating tradespeople, the communication with myself and the engineers to the final product. To top it off, everything was cleaned up and the gardens restored. I am very grateful and would be delighted to recommend Allenco Construction.”
- Eileen, Google Review
3. Dornford Building Group
Address: Christie Downs SA 5165
Phone: +61 8 7084 4545
Business hours:
- Monday-Friday, 8:00 AM to 5:00 PM
- Saturday, 8:00 AM to 12:00 PM
With 400+ completed projects, 60+ repeat clients, and 50+ years of building experience, Dornford has really proven itself as a trustworthy construction group. Many of those builds were dream homes, major renovations, and house extensions that made clients happy.
Everything starts with the concept phase to discuss ideas and cost estimates, followed by detailed design, which includes project models and all the required building documentation. Only when that’s settled will construction begin, with regular updates through to completion.
What customers appreciate most in this process is how the team was quick to answer questions and flexible with changes. However, a few homeowners did mention a missing built-in shelf in the shower niche or extra power outlets in the living room not making it to the final layout.
On the bright side, those who lived onsite during the build vouch for their tidy and respectful approach. Being a member of the Association of Professional Builders (APB), it’s no surprise they uphold these kinds of standards.
Brilliant renovations and helpful throughout
“Dornford recently completed renovations for us and have done a brilliant job and we’re very happy with it. Dornford were extremely helpful throughout the whole process, from concept to completion, answering lots of questions from us and guiding us along the way. Will be choosing Dornford again if we choose to do more renovations or other building projects in the future.”
- Billy Rogers, Google Review
Exceptional communication and turned our house into a home
“Could not have asked for a smoother process in our recent home extension. Jake, Rocky and the team were all professional to work with and all understanding that we were living in the house during the extension. The communication was exceptional, receiving weekly emails with what to expect in the coming week. We would highly recommend Dornfords for any home renovation. Dornfords have turned our house into a home.”
- Kellie Hower, Google Review
4. TRIIIA Builders
Address: Box, 228/259 Kensington Rd
Phone: +61 8 8482 2900
Business hours: Monday-Saturday, 8:00 AM to 5:00 PM
TRIIIA Builders weren’t kidding when they called themselves perfectionists—from their architects to their hand-picked subcontractors. As client reviews reveal, their homes were built with great attention to detail, outstanding workmanship, and zero need for rework.
They’ve also been hitting their goal of making the building process an enjoyable time, with people owing the stress-free journey to the team’s approachable and attentive nature. Add to that the open communication given, whether it’s listening to ideas or providing updates.
Moreover, they’re flexible—tailoring plans to fit tight schedules or budgets. But certain projects like custom homes still went over budget or missed timelines, especially during July to August, when winter and rain tend to slow down construction.
What makes it better are TRIIIA’s ready-made home designs—ideal for those starting from scratch. There’s the Victorian-inspired Kensington, the solid stone contemporary Bentley, and the three-bedroom single storey Solitaire, among others.
Listened to my ideas, outstanding workmanship, and completed on time
“I had such a great experience working with Simon from Triiia. From the initial consultation to the final walk-through, they were professional, attentive, and knowledgeable. They listened to my ideas and concerns and worked with me every step of the way to ensure that the final result exceeded my expectations. The quality of their workmanship was outstanding, and they completed the project on time and within my budget. I am thrilled with the finished product and would highly recommend this builder to anyone looking to bring their dream home to life.”
- Michael Doyle, Google Review
Maintained open lines throughout our custom build
“Simon and the TRIIIA team truly stood out throughout our custom build, guiding us from the initial meeting to the design phase, with Simon as our point of contact and site supervisor until handover. Maintaining open lines of communication, Simon was easily accessible via email or text throughout the duration of the build. In the future, we’d gladly build with TRIIIA once again for any upcoming projects.”
- Johnny Le, Google Review
5. Synergy Construct
Address: Level 8/115 King William St
Phone: +61 1300 735 500
Business hours: Monday-Friday, 9:00 AM to 5:00 PM
If you’ve passed by Adelaide’s Little National Hotel, Victoria Tower, or Norwood Mixed Development, then you’ve already seen Synergy Construct’s work in action. Commercial high-rise projects are what they do best—from cost planning to designing and construction.
Mind you, those structures range from $40 million to $410 million. So while they’re more than capable of handling standard home rebuilds or renovations, their focus on large-scale builds—and premium pricing—are drawbacks for anyone after something more affordable.
But for those taking on big builds, it’s important to highlight that Synergy’s tower developments are well-regarded for their bold, striking designs. Many also commend the fast-moving crew and reliable contractors—all backed by a solid, experienced team.
Let’s not forget that Synergy’s work has made a huge impact on Adelaide’s commercial construction scene. That means they haven’t just delivered iconic buildings—they’ve helped shape the city skyline.
Impressive, striking, and quality tower developments
“They construct impressive, imposing, and striking tower developments which catch the eye, and with quality. A professional company who take care with their construction.”
- Luke Watson, Google Review
Quick workers and the building was made with ease
“Building was amazing. Workers were quick and the building was made with ease. I will always choose Synergy constructions.”
- Aum Karmata, Google Review