Sydney Extensions and Design

See what local homeowners are saying

• DLDerek L5 Mar 2026

  David, Paul, Peter and the team helped to realise our dream of converting a single storey old dwelling into a nice looking double storey home. The project came with choices, decisions, variations and...

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  David, Paul, Peter and the team helped to realise our dream of converting a single storey old dwelling into a nice looking double storey home. The project came with choices, decisions, variations and also impacts from Covid. We were supported by the team to always feel control; to have options. If you are after genuineness and expertise then I would highly recommend David, Paul, Peter and team from Sydney Extensions.

• ACAstrid C4 Mar 2026

  I cannot recommend Sydney Extensions and Designs highly enough! They recently completed work on or home in Lane Cove and the results are absolutely stunning. We reviewed all the available builders bef...

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  I cannot recommend Sydney Extensions and Designs highly enough! They recently completed work on or home in Lane Cove and the results are absolutely stunning. We reviewed all the available builders before making a final decision, and choosing them was the best choice we could have made. From start to finish, the entire process was handled with the utmost professionalism and attention to detail. A massive thank you to David and Paul, who were both tremendously helpful and kind throughout the renovation. We did change our mind on a couple of things midway through the process which isn’t ideal but they were very accommodating and understanding. Their expertise and approachable nature made what can often be a stressful experience feel incredibly smooth and well managed. If you are looking for a building company that combines high-quality craftsmanship with exceptional customer service, look no further.

• JCJason C21 May 2025

  We recently completed our home extension with Sydney Extensions, and we couldn’t be happier with the experience and the result. After consulting with a few other builders, it was David’s professional...

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  We recently completed our home extension with Sydney Extensions, and we couldn’t be happier with the experience and the result. After consulting with a few other builders, it was David’s professional and honest explanation of what was achievable in our home that gave us the confidence to go ahead with them. From day one, the pricing was very transparent and reasonable—no hidden costs. The entire process was smooth and stress-free. Paul was incredibly professional and knowledgeable, always keeping us informed and on track. A special thank you to Peter, the building supervisor, who was absolutely fantastic. He was onsite almost every day, keeping a close eye on the progress. Whenever we had questions or concerns, he would either respond immediately or come straight to the site to help. His dedication gave us real peace of mind throughout the build. We feel so lucky to have found such a reliable and trustworthy company. No one would notice an extension has been done if we do not tell them ! Our home now has two extra bedrooms upstairs and a spacious new dining area—we couldn’t be more thrilled with the outcome. Highly recommend Sydney Extensions to anyone planning a renovation or extension! All the best for your business.

• ASAnna S3 Sept 2024

  We have just completed major renovations and extensions on our home after a very long time before finding Sydney Extensions and Design. Thank you David and all the team for the seamless experience! I...

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  We have just completed major renovations and extensions on our home after a very long time before finding Sydney Extensions and Design. Thank you David and all the team for the seamless experience! I never thought renovating my home could be as straight forward as it was. Your expertise was much appreciated. You listened to my needs and provided great ideas in a professional and really personable way. I loved that you kept me on track as I tend to get carried away. We also found the process of dealing with your various suppliers to be a good one and they were extremely helpful with our selections, in particular Robyn from Madison Tile who went out of her way to help me. I have recommended your team to several of my friends who will be contacting you.

• HShugh S28 May 2024

  Thank you, Peter, David, and the Sydney Extensions team. Your professional, considerate approach and open communication style throughout our renovation was really appreciated. Your skilled tradespeopl...

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  Thank you, Peter, David, and the Sydney Extensions team. Your professional, considerate approach and open communication style throughout our renovation was really appreciated. Your skilled tradespeople were friendly, easy to deal with and worked well with other parties whenever the need arose. We are really pleased with our extension; we would recommend your team to anyone embarking on a renovation of their own. Hugh & Skye

• JDJason D6 June 2022

  My wife and I were looking at adding another story to our home in Castle Hill. We spoke with four building companies before settling with David at Sydney Extensions. I have to admit, I wasn't the easi...

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  My wife and I were looking at adding another story to our home in Castle Hill. We spoke with four building companies before settling with David at Sydney Extensions. I have to admit, I wasn't the easiest client with changes being made more regularly than I should. David was incredibly patient and his years of building and construction experience were clearly evident with top quality work being carried out to the letter. I can highly recommend Sydney Extensions and feel confident everyday that we made the right decision.