Qualified & Licensed Builders in Thornleigh, Sydney


Olsen Construction, the skilled home builders, is a renowned company in Thornleigh for their efficient and excellent work. We are custom home building and design experts.

Our customers choose us to provide superb home extensions and additions. Our time-tested results ensure customer satisfaction every time. In addition to excellent customer service, we offer the highest quality workmanship. With over 30 years of experience, we are specialists in providing excellent renovation designs and outcomes.


Our experienced team always works to support our customers throughout the project. Thanks to our professional’s excellent problem-solving skills who continue to provide excellent results even under complexities.


To advise you on the action plan, our representative will visit your home and discuss the likely cost of the proposed action plan. Our builders will monitor the project and continue to provide the tailored services to meet your specific needs. We work on your home refurbishment according to your needs.

With an enhanced aesthetic appeal for your home, we provide economical services. We are familiar with standard construction methods and techniques. Our artisan will help you to improve your entire living space, extend it or rebuild it. 

Connect with us in Thornleigh to add your kitchen to the living room or the patio renovation or to renovate your fine home. For professional building services, please call us at (02) 9482 1000. For more information, contact us, the perfect builders, and ask for a free quote from our experts.