With almost 40 years’ experience servicing all areas of NSW – as well as exporting product to Hawaii, Taiwan, Guam and Norfolk Island – Great Lakes Windows has become one of the largest and most successful family-owned businesses in the industry. We have worked with architects and building designers on numerous award-winning projects, and we have a team of committed professionals behind every aspect of our business. From the simplest tasks to the most complex architectural designs, we specialise in manufacturing aluminum window and door units that many of our competitors find too difficult.