Double glazed windows

Give your home a modern look with total window replacement. Our high-performance aluminium solutions improve insulation, security, and curb appeal. Designed to last with minimal maintenance.

Energy efficient

Reduce heat loss and lower energy bills with aluminium frame advanced double glazing.

Modernise your home

Upgrade your home with aluminium frames that are low maintenance and built for durability.

Find the perfect fit for your home

We offer a range of window replacement options to suit your style, budget, and performance needs. Whether you are modernising an older home or upgrading for better insulation, we have the right solution for you.

Existing to new aluminium frames

Upgrade your old single pane aluminium windows with modern double glazing that offers better insulation, durability, and a refreshed look.

Timber to aluminium frames

Replace old timber frames with high-performance aluminium for a low-maintenance, weather-resistant solution that won’t warp, rot, or require repainting.

Testimonials

Customer testimonials

“Fabulous in every way! We got quite a few quotes for new windows/doors and the products & quotes varied greatly. In the end we went with Ultimate Design because they offered a top quality product, they were very professional and presented us with a very appealing quote saving us thousands of $$$$.”
Shelley H.