Sliding doors & double glazing
Double glazing and aluminium sliding doors in Melbourne
Warmer in winter, quieter all year.
Two panes with a sealed gap between them slow the heat and noise that single glass lets straight through, and cut the condensation on the inside pane. We fit new aluminium doors and windows, or put double-glazed glass into frames that are still sound.
- New aluminium sliding and stacking doors, sash and double-hung windows
- Retrofit double glazing for sound timber or aluminium frames
- Every quote names the glass for each opening: thickness, gap and coating
Get a double glazing quoteOr send photos on WhatsApp (opens WhatsApp)
Cost
What double glazing costs in Melbourne
The price depends on the number and size of openings, the glass, and whether the frames are sound enough to keep. These are typical Melbourne figures; we measure on site and quote it in writing for the exact price.
Typical Melbourne range
- Retrofit into an existing frame, per opening
- $600–$1,800
- New double-glazed window, installed
- $2,300–$3,500
Retrofit suits sound frames that can take the thicker glass. Guide figures, not a quote.
Options
Your options for warmer, quieter rooms
Most homes mix two or three of these: new doors where the old ones have failed, new glass where the frames are still good.
How we work
Measured on site. Quoted in writing. Priced before we start.
- Tell us about the openings. How many windows and doors, the frame type, and what bothers you: cold, noise or condensation. A form or a WhatsApp message with a few photos.
- We measure on site. We measure every opening and check whether the frames can take double glazing or need replacing.
- You get it in writing. The quote names the glass for each opening, with the price fixed before work starts.
- Made to measure, then fitted. The glass and frames are made to your measurements, then installed and sealed, and the site is left clean.
“The team from Glassy Slide responded quickly to my request to supply and fit 2 new double glazed widows. The job was completed promptly and to a high…”
Questions
Sliding doors & double glazing: common questions
How much does double glazing cost in Melbourne?
Retrofitting double-glazed glass into existing frames costs from about $600 for a casement window to $1,800 for a sliding door, per opening. A new double-glazed window, supplied and installed, is about $2,300 to $3,500. The real figure depends on the number and size of openings, the glass and whether the frames are sound enough to keep. We measure on site and give you a written quote before any work starts.
Is retrofit double glazing cheaper than new windows?
Usually, yes. Fitting a double-glazed unit into an existing frame costs less than a full new window, but it only suits frames deep and sound enough to carry the heavier glass. We check that on site before recommending it.
Does double glazing work with aluminium frames?
Yes. Modern aluminium windows are made for double-glazed units. A thermally broken frame performs best; standard aluminium still benefits from the glass, but the frame itself conducts more heat.
How long does installation take?
Most homes take one to three days on site once the glass is made, depending on the number of windows and access. Glass is made to measure, so allow a few weeks from sign-off to installation.
Is there a rebate for double glazing in Victoria?
The Victorian Energy Upgrades program offers discounts on approved window upgrades through accredited providers. Eligibility and amounts change, so check the current rules on the Victorian Government's energy website before you rely on it in your budget.
Do you fit uPVC windows?
No, we fit aluminium windows and doors. uPVC frames hold heat better than standard aluminium, so they are a fair choice for windows. Aluminium is stronger and slimmer, which suits wide sliding and stacking doors, and a thermally broken aluminium frame closes much of the gap.