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Quantum Built

Sydney home builds and renovations

Love Where You Live

We build and renovate Sydney homes with care and precision, creating spaces you'll be proud to call your own.

  • Best of Houzz 2021
  • Best of Houzz 2022
  • Best of Houzz 2023
  • Best of Houzz 2024
  • Master Builders Association NSW Excellence in Housing Awards 2025 winner
Client testimonial from Marny, on her Russell Lea renovation

Why Quantum Built

  • Multi-award winning Sydney builders
  • Committed to excellence
  • We take complete pride and care of your project from start to finish
  • Dedicated to quality and transparent pricing with no hidden costs
  • 20+ years of local building experience

Speak to us today and experience our difference.

Builders who run the job, from first meeting to handover.

Quantum Built has built and renovated homes across Sydney since 2010. Our builders are on site daily, with regular site meetings and transparency at every stage.

You get one point of contact, transparent pricing with no hidden costs, and a builder on site who cares how it finishes.

About Quantum Built

Client words

Quality workmanship, clear communication, and builds delivered within budget.

  • Judith Ladd20 January 2026

    We engaged Quantum Built to renovate 3 bathrooms in our 2-storey Victorian Gothic home. The renovations proved challenging, with an old house hiding building secrets that required much remedy. Quantum Bulit managed all the issues our home threw at them and delivered us 3 elegant bathrooms that we now delight in using. The Quantum Built team were responsive and good to deal with. I am happy to recommend them as a quality renovator.

  • David Sams7 July 2026

    I’m pleased to recommend Quantum Built for their outstanding work on our renovation. Beginning with the initial tender process, Quantum were the first vendor to proactively reach out when our DA was published. Subsequently, as we sought three competitive quotes, Quantum came out the most expensive of the three. This was due to their detailed and thoughtful list of inclusions, which meant that we incurred no additional costs as a result on under- or mis-quoting, as the work progressed. Any additional costs were a result of additions we made, or compliance and regulation requirements. Timing was reasonably managed, with weather and some other unforeseen delays being the main reasons the job took longer than hoped. In terms of the service from Quantum staff: Arthur worked patiently and insightfully with us on designing joinery, choosing surfaces and fixtures, and worked through variations creatively and within budget to achieve our desired outcomes. Karam provided excellent onsite management of sub-vendors (most of whom were also very good) and other matters, and kept us up-to-date on progress, delays and variations as needed. Between Karam and Arthur, we had regular discussions and made quick, well-informed decisions that kept works moving. Kelly also provided timely reporting on financial progress and variations. Overall, we trusted Quantum and felt they understood our aspirations and acted in our interests. You can partner with Quantum with assurance and confidence, and I am happy to be a reference.

  • Timothy Salter3 August 2026

    I engaged Quantum Built to assist with the comprehensive renovation of my 3-bedroom apartment in Manly. The project involved a complete revamp of every room in the apartment, along with a change to an open floor kitchen/living area, the installation of new, large panoramic windows overlooking the ocean and new bathroom floorplan configurations. Right from the initial consultation with Jason, through the quotation process and the construction phase (managed on site brilliantly by Karam but also overseen by Jason), Quantum was absolutely professional in their approach, always very responsive and a pleasure to work with. Their work was of a very high standard, and the project was delivered on time and on budget, which was amazing for me. The administration side of things was also very easy and seamless, thanks to Kelly. Once the construction phase was underway, my primary point of contact was Karam, who was the site manager for the project. I can’t thank Karam enough for all his help, not only for the excellent construction work he did himself, but also for the way he coordinated and managed the trades, his constant communication with me, and his excellent, constructive interaction with my architect. Karam really went above and beyond in his efforts on this project, helping me out with any questions I had, making suggestions on different aspects of the work, and ultimately delivering the project on time and to a very high standard. Importantly, too, he did a fantastic job managing the building throughout the project (very important in a strata complex), arranging for the daily cleaning of the impacted common areas and responding to adhoc requests from other residents to minimize disruption to them, for which they were very appreciative. I absolutely recommend Quantum for any renovation/construction project.

  • Lillian Lu19 October 2026

    We engaged Quantum Built 2 years ago to help us build our dream home, and now that the build is complete and we've moved in, we couldn't be happier with the outcome. From the very beginning, the entire process was seamless. The design phase with Marco was thoughtful, collaborative and focused on bringing our vision to life. Throughout the build, the team maintained excellent communication and kept us informed every step of the way. Like any major project, there were a few challenges along the way due to external factors beyond anyone's control. However, Quantum Built consistently demonstrated professionalism, transparency and a commitment to delivering an outstanding result. Their dedication to quality never wavered, and they worked hard to ensure the process remained as smooth and stress-free as possible. A special thank you to Caren and Jason for their professionalism, responsiveness, and follow-through. Their clear and consistent communication kept us up to date with progress at every stage, making what could have been a complex process feel simple and straightforward. The quality of workmanship and attention to detail in our finished home is exceptional, and we are incredibly grateful to the entire Quantum Built team for helping bring our dream home to reality. Thank you, Quantum Built, for making this journey such a rewarding experience. We would highly recommend your team to anyone looking to build their dream home.

  • Rebecca Mann26 February 2025

    I would recommend Quantum Built to anyone who is considering embarking on a new build or renovation. Jason and Karam and the rest of the team at Quantum Built clearly take pride in the work they deliver. They were highly professional and easy to deal with throughout, and the quality of their workmanship and attention to detail were second to none. They were always easy to communicate with, and solutions- driven. Our building is an old 1930s apartment building which comes with a lot of unexpected issues, and they always took these things in their stride with professionalism. They understood exactly the outcome we wanted to achieve, and we are so happy with our new home.

  • Laine Edwards30 November 2024

    From initial consultation, to quote and completion, Jason and the team from Quantum Built were excellent communicators, understood our budget and offered us options for materials, finishes and fittings that made the whole process easy and accessible for us. Professional plans really helped us visualise the final result and throughout the project the team kept us informed, asked our opinions on variations, made recommendations as needed and accommodated our varied colour scheme. We’ve gone from a shabby semi to a beautifully finished home. We highly recommend Quantum Built.

Where we build

  • Inner West
  • Sydney CBD
  • Eastern Suburbs
  • Lower North Shore
  • North Shore
  • Northern Beaches
  • St George
  • Sutherland
  • Recent jobs include Manly, Mosman, Sans Souci, Concord, Forest Lodge, Chatswood and Darling Point. Not sure if we cover your suburb? Ask us.

Free consultation

Let's talk about your build.

Tell us a little about your project and we'll get back to you within 1 business day. Or call now and talk to the team.

1300 388 833
Hours
Monday to Friday, 9am to 5pm
Email
info@quantumbuilt.com.au
Office
Shop 70, 60-82 Princes Hwy, St Peters NSW 2044

We reply within 1 business day. No spam, ever.

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