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The discerning choice for custom windows and timber doors in Sydney

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Australian craftsmanship that is built to last

Cool Change Doors and Windows is a window and door manufacturer based at Terrey Hills in Sydney’s north. We custom build top quality products from western red cedar and select hardwoods for a paint or clear finish using the finest timber and hardware available.

With over 30 years’ experience in the building industry, our team aims to collaborate with home owners, builders and architects to fulfil their design vision and deliver premium products that exceed expectations.

We are a family-owned company servicing Sydney's Northern Beaches, North Shore, Inner West, Eastern Suburbs and beyond.

Why Choose Timber

Thermal Efficiency

Sydney timber doors and windows provide the most superior thermal qualities of all window and door frames allowing little heat to escape during winter and little heat transference from the outside during summer.

Conversely, aluminium frames are excellent thermal conductors, always cold in winter and hot in summer when exposed to the sun or heat. A BASIX certificate values timber framed doors and windows well over aluminium for thermal properties and also for sustainability.

Western Red Cedar

Western Red Cedar is the timber species of choice for door and window manufacturing due to its excellent inherent properties. Western Red Cedar has natural decay combating agents to provide incredibly long life to the doors and windows. We procure only the best cedar for doors in Sydney.


Further, Western Red Cedar is extremely stable and will resist warping, cupping, swelling and twisting. It also allows great adhesion for gluing and surface finishes. Western Red Cedar is also a carbon positive product and comes with certification as a sustainable resource with first class forest stewardship practice. You can’t get greener than that!

Satisfied Customers

"We had a very tight time schedule to get our doors in but Garth and the team at Cool Change made it happen and we will be forever grateful! Cool Change crafted us high quality, custom made doors that make our house feel light and bright, and at a very competitive price. An awesome family run business, which looks after you every step of the way. Highly recommended!"

Karen H

"Garth and his team at Cool Change provided us with all of our windows and external doors. His knowledge is first class due to his many years as a master builder and the workmanship and detail are second to none. All done with honesty and a friendly manner. We continue to use Cool Change as we progress with the second phase of our renovation and would recommend them to anyone. A great company to deal with during a stressful time."

Danielle R

"Fantastic workmanship and advice. Also came in under budget. Thank you for your honesty. Hard to find these days."

Tony S

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