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Taking Strata Window and Door Installation to a new level
Windowline’s ultimate guide to a stress-free window and door replacement projects
This guide brings together our top insights, tips and practical steps — everything you need to make your replacement project clearer, easier and far less stressful.
Featured projects
We’ve completed over 8,500 window and door replacement jobs.
Here are some of our recent projects.
Celebrating over 36 years in business
Windowline was started by Gary Stevenson in Sydney in 1989. At that time, he realised clients wanted the peace of mind that they were getting window and door solutions that were not only the best quality, but the best value for your money.
Windowline’s focus has always been to provide a service that exceeds our clients’ expectations along with a result you’ll be delighted with for many years to come. It’s a commitment that’s been at the heart of our business for more than 36 years.
The Windowline way
Strata specialists for over 36 years
Choice of products from all suppliers
Outstanding safety record
High quality products and workmanship
Personalised client service
Windowline are the trusted leaders in Window and Door replacement projects.
Over our 36 years in the industry we have successfully completed 8500+ strata building projects, delivering quality solutions and peace of mind for owners and strata managers.
Client testimonials
We partner with many top strata managers. Here is just some of the positive feedback we’ve received from our clients, who are more than happy to talk to you about the quality of our work.
We work with all of Australia’s leading window and door manufacturers
