TheoAgelis Constructions

We are the premier earthworks & concrete construction company in
SA through consistent quality of product & service.

The measure of all others.

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Why Use Us?

We know how important it is to you that we start and finish the job when we say we will. Tradesmen have created a bad reputation for saying what they think you want to hear and then not following through on it. Follow through is an area that we thrive in.

Co-ordination & Fast Turnarounds

Our scheduling system is second to none, and our customers will tell you the same! We constantly receive compliments on the way we schedule our jobs. We create a schedule at the start of each job and stick to it. For large builders we give daily updates on our progress. Smaller builders can have an upfront schedule of their job with updates if things change. We coordinate with all the relevant parties throughout the whole process including customers, builders, plumbers, electricians, site toilet suppliers, steel suppliers, pest treatment providers & council.

The speed we do the job once we receive all info from the builder is another strength of ours. We have a 20 day turnaround time from quote acceptance to concrete slab pour, including an allowance of 5 days for the builder to give final construction details. There aren’t many companies that can compete with that!

We also directly employ many of our workforce, so we don’t have to rely on (sometimes unreliable) contractors unlike most construction companies. This allows us to book in the dates that suit you and stick to them.

Value for Money

We offer very competitive prices on all of our services. We can assure you that we offer the best value for money service in SA. We have all the specialised machinery and equipment that’s needed to produce an excellent quality product with top notch service. We make sure our employees are fully trained and maintain the very high standard of quality we expect.


With almost 35 years experience in the industry, there’s no doubt that we know how to get the job done right. Over this time you can only begin to imagine the different challenges we’ve come across in our work. You can learn all the theory in the world, but we all know that experience is the best teacher!

Safe & Reliable

We have the know-how and the equipment to ensure that we do the job safely & efficiently. All our staff and contractors have the appropriate WHS training, white cards and equipment. Theo Agelis Constructions is fully licensed & insured giving you the peace of mind that comes with it.