Business owners and property managers in Melbourne face a constant challenge. You need to keep power bills down while keeping shops and offices comfortable for your workers and clients. High power bills, changing weather, and loud traffic noise make window performance very important. Old single-pane glass windows just cannot keep heat out in summer or keep warmth during winter.
Choosing commercial double glazed windows solve these common problems. Beyond making your building look modern, double glazing cuts heating and cooling bills, blocks out street noise, and makes your building more energy efficient. This guide explains double glazed windows cost factors, retrofit choices, power-saving benefits, and what happens during installation.
What Are Commercial Double Glazed Windows?
Double glazed windows use two glass panes with a sealed space between them. This space is filled with dry air or safe gas like argon. This creates an insulating barrier that stops heat from moving between the outside weather and your inside workspace.
Strong commercial aluminium frames are built to hold thick glass, block rain, and handle high winds on tall buildings.
Key Benefits of Double Glazed Windows for Your Business
Upgrading your building glass brings real practical and financial benefits.
1. Big Power Savings and Lower Bills
Heating and air conditioning make up a large part of any company’s power bill. Single-pane glass lets summer heat straight in and lets indoor winter warmth escape fast.
- Better Insulation: The sealed gap in double glazing stops heat movement, so your air conditioners do not need to run as hard.
- Cheaper Power Bills: Using less heating and cooling means smaller power bills every quarter.
- Longer Aircon Life: Less stress on your heating and cooling equipment means fewer repairs and a longer working life.
2. Quiet Workspaces and Less Street Noise
Loud Melbourne roads, trams, building sites, and planes create constant noise. This noise makes it hard for staff to focus and disrupt visiting clients.
- Noise Reduction: Double glazing blocks outside noise by up to 80% compared to standard single glass.
- Mixing Glass Thickness: Using glass panes of different thicknesses (like 6mm glass with 4mm glass) breaks up different sound types to keep offices quiet.
3. Higher Property Value and Happy Tenants
Tenants prefer power-saving buildings that lower daily running costs and help the environment.
- Better Building Value: Higher energy efficiency adds real market value to your commercial property.
- More Comfortable Rooms: Removing cold drafts and hot spots near windows keeps staff and tenants happier for longer.
Commercial Double Glazed Windows Cost Factors
Finding the exact price for new windows depends on a few physical factors. Commercial jobs vary based on building height, ladder or crane needs, frame choices, and glass types.
Typical Prices
On average, good quality commercial double glazed windows in Australia cost between $800 and $1,500 per square metre, including standard aluminium frames and installation.
For tricky jobs that need special glass, high cranes, or extra building work, prices run from $1,800 to $2,200+ per square metre.
| Glazing Choice | Estimated Cost (m²) | Best Use Case |
|---|---|---|
| Standard Commercial Aluminium | $800 – $1,200 | Ground-floor shops, small offices, and standard shopfronts. |
| Thermally Broken Framing | $1,200 – $1,800 | High-performance offices, green building projects. |
| Retrofit Double Glazing | $450 – $850 | Older commercial buildings with good existing frames. |
| Custom High-Performance / Acoustic | $1,500 – $2,200+ | Main roads, luxury offices, medical centres. |
Retrofit Double Glazing for Commercial Buildings
Taking out entire window frames is not always necessary or smart. In many cases, retrofit double glazed windows give you a quick, clean, and affordable option.
How Retrofitting Works
Retrofitting keeps your existing window frames in place. Glaziers take out the old single glass pane and fit a new sealed double-glazed unit into your original frame using custom adaptors.
The Savings
The retrofit double glazing cost is much cheaper than buying all new frames. Because workers do not have to tear down walls, plaster, or outside metal panels, labor time and costs drop fast.
- Little Disruption: Installation is fast, so your daily business work continues as normal.
- Save Money: Saves about 30% to 50% compared to replacing full window frames.
- Keeps Building Look: Ideal for heritage properties in Melbourne where you cannot change the outside look of the building.
What Happens During Installation?
Upgrading commercial glass takes good planning to keep the job safe and your work running smoothly.
1. Site Inspection
Professional glaziers measure your windows, check frame strength, and look at site access.
2. Custom Factory Build
Each double-glazed unit is built to exact measurements, so it seals perfectly.
3. Safety Setup
For tall buildings, installers set up safety gear like lifts, scaffolding, or cranes.
4. Removing Old Glass
Glaziers safely remove the old glass panes and clean out the inside of the frame.
5. Fitting New Glass
New double-glazed units are set in place with strong commercial seals and rubber trims to stop water and air leaks.
6. Final Check
Installers test window movements, clean all glass surfaces, and check every seal before finishing.
Choosing the Right Glass for Your Space
Standard double glazing gives great insulation, but special glass coatings can fix specific problems:
- Low-E Glass: Has an invisible layer that reflects heat. It blocks the hot sun in summer and holds indoor warmth inside during cold winter months.
- Laminated Acoustic Glass: Uses a plastic layer hidden inside the glass to soak up heavy traffic and street noise.
- Toughened Safety Glass: Strong glass that is up to five times harder to break than normal glass, giving ground-floor shops extra protection.
Frequently Asked Questions
What is the average double glazed windows cost for business spaces?
Commercial double glazing usually costs between $800 and $1,500 per square metre with standard frames and fitting included. Final prices depend on building height, glass coatings, frame style, and the overall size of your project.
How much can I save on power bills with commercial double glazing?
Double glazed windows cut heating and cooling energy use by up to 30% to 40%. Because air conditioners do not need to work as hard to keep temperatures steady, business owners save money on power bills every quarter.
What changes the retrofit double glazing cost for a business?
Retrofit costs depend on current frame strength, glass thickness, special coatings like Low-E, site access needs, and window size. Retrofitting saves 30% to 50% over new frames because walls and trims stay untouched.
How long do commercial double glazed windows last?
Quality commercial double glazed windows last 20 to 25+ years when installed by qualified glaziers. Strong aluminium frames and top-grade seals keep units working well without fogging, leaking, or breaking down over time.
Can retrofitting be done on all commercial aluminium window frames?
Most modern aluminium frames can take retrofit double glazing using custom adaptors. But if old frames are bent, rusty, or leaking water, full frame replacement is best to ensure safety and proper insulation.
Will double glazing stop loud noise from city streets?
Yes, double glazing cuts outside noise by up to 80% compared to single glass. Using glass panes with different thicknesses breaks up sound waves, giving workers and clients a much quieter space to work.
Can installation be done without stopping our daily business?
Yes, experienced commercial glazing teams plan work around your business hours. Work can be done section by section, after hours, or over weekends so your staff, customers, and trade are not disrupted.
Upgrade Your Business Space with Clearcut Glass
Investing in commercial double glazing is a smart move for your property. Lower power bills, less street noise, and higher building value make the long-term returns well worth the initial spend.
Whether you need full window replacements or want to retrofit your existing frames, working with local Melbourne glazing experts ensures a hassle-free job from start to finish.
Ready to improve your building’s energy efficiency?
Call our commercial glazing team on 0431 889 548 or visit Clearcut Glass to book your free site assessment today.
