Replace Old Windows. Keep Your Walls.
Alumina specialises in like-for-like window replacement across Melbourne — swapping tired timber, steel or first-generation aluminium frames for new double-glazed architectural aluminium. Custom-sized to your existing openings, colour-matched to your facade, removal and disposal included.
Why replace old windows
Single-glazed timber and steel windows leak heat, rattle, jam in summer and rot at the sill. New aluminium frames give you a maintenance-free profile, double-glazed thermal performance, smooth operation, modern locking hardware and dramatically lower energy bills. Most clients see a noticeable temperature and noise change from day one.
Our replacement process
Step 1: free site measure and itemised quote. Step 2: custom manufacture of your new aluminium frames (typically 4–6 weeks). Step 3: installation — we remove the old frame, prep the opening, install and seal the new unit, and finish with architraves or reveals to suit your interior. Step 4: disposal of the old frames and a site clean.
Custom sizing & colour matching
Every opening is measured individually — Melbourne's older homes are rarely square. We extrude or trim each frame to fit, and powder-coat to match the colours of your existing aluminium windows and doors so replacements blend seamlessly with the rest of the home — or match your facade, gutters or roof in any Dulux colour.
Frequently asked
How long does window replacement take?
A typical like-for-like window replacement is completed in 1 day per room — remove the old frame, prepare the opening, install the new aluminium unit, seal and finish. A whole-home replacement on a 3-bedroom Melbourne house is usually scheduled across 3 to 5 days.
Will my walls be damaged during replacement?
No. Alumina performs like-for-like replacement that keeps your existing wall opening intact. We protect surrounding plaster, render and bricks; minor make-good of the architrave or reveal is included on every job.
Can you replace timber or steel windows with aluminium?
Yes — this is one of our most common jobs in Melbourne's older Edwardian, Californian bungalow and post-war homes. We custom-size each new aluminium frame to your existing opening and colour-match to your facade.
Do you remove and dispose of the old windows?
Yes. Removal, site clean-up, and responsible disposal of the old frames and glass are included in every window replacement quote. You'll come home to new windows and a tidy site.
Request a free quote
Upload photos and measurements for as many windows or doors as you need — we'll come back with a written quote within 1–2 business days.