Replacement Windows in Australia

Old windows do more than look tired. When they fail, they let heat escape, let noise in and push your energy bills up. Replacing them with double glazed uPVC windows is one of the most practical ways to improve comfort at home. With more than 15 years of experience, Ultimate Windows manufactures and installs energy-efficient, noise-reducing and durable uPVC windows and doors for homes and businesses. This page explains when replacement makes sense, what you gain and how the process works.

What Are Replacement Windows?

Replacement windows are new windows installed to take the place of existing windows that are old, damaged or no longer performing well.

Double glazing is a window unit made of two panes of glass separated by a sealed gap. That gap helps slow the movement of heat and sound through the glass. If you would like a closer look at how the units are built, see our guide to double glazed windows.

How Long Do Double Glazed Windows Last?

Double glazing generally has a lifespan of around twenty years. Good care can extend that, while poor quality windows can wear out much sooner. Once your windows reach that age, it is time to consider replacing them.

If your home still has old single glazed windows, replacing them with double glazing is an upgrade worth serious thought. It can repay you with greater comfort, lower energy bills and a range of other benefits.

Signs You Need Replacement Double Glazed Windows

Whatever the age of your current windows, these signs suggest they are due for replacement:

• Condensation between the panes: This means the seal has failed and the inert gas that provides thermal performance has leaked away. The window becomes less efficient, so your home feels colder in winter and hotter in summer.
• Water leaks: Leaks show the window is no longer weatherproof. Causes include failed seals around the glass or frame, or blocked drainage holes.
• Draughts: Draughts point to failed seals or a compromised window, which reduces comfort inside the home.
• Chips or cracks: Damage to the glass or frame tends to get worse over time. It makes your home colder in winter and more prone to mould.
• More noise: If outside noise is louder with the windows closed, the acoustic insulation is not working as well as it once did.
• Windows that are hard to open and close: A swollen or warped frame can misalign the mechanism. Dirt and debris in hard-to-reach places can also cause sticking.
• Higher energy bills: If your heating runs more in winter and your air conditioner works harder in summer, your windows may be letting heat in or out.

Single Glazed vs Double Glazed Windows

The main difference is the number of glass layers and the sealed gap between them. Here is how the two compare.

Benefits of Replacement Double Glazed Windows

Replacing old and deficient windows with high-quality, energy-efficient windows brings financial and everyday benefits:

• Improved comfort: Your preferred temperature is easier to maintain all year round.
• Lower energy bills: You rely less on air conditioning and artificial heating.
• Better security: Modern double glazed windows have secure locking systems and tougher glass, so they are harder to break into.
• Less noise: Modern windows offer increased sound insulation.
• Better aesthetics: New windows improve the appearance and value of your property.

Why Choose uPVC for Replacement Windows?

uPVC stands for unplasticised polyvinyl chloride. It is a rigid plastic used to make window and door frames.

uPVC frames do not rust or rot and do not need repainting. The material also conducts heat poorly, which suits a window that needs to keep indoor temperatures stable. Combined with double glazing, this makes uPVC a popular choice for homeowners who want durable, low-maintenance windows.

Repair or Replace: What Is Right for You?

Not every window problem means you need new windows. We will not try to sell you replacement windows if you do not need them. Where a repair will do the job, we can provide repair and maintenance services to help keep your windows performing at their best.

Replacement is usually the better choice when seals have failed, when glass or frames are cracked, or when leaks and draughts keep coming back.

How Window Replacement Works With Ultimate Windows

1. Request a free measure and quote. Tell us about your project and one of our experts will get in touch to arrange a suitable time to discuss your needs.
2. Review your fixed-price quote. You receive a clear price breakdown for all windows and doors, with no hidden fees.
3. Manufacture and delivery. We manufacture your uPVC windows and arrange delivery to your home.
4. Professional installation. Our team fits your new windows. You can read more about our installation service.
5. Aftercare and guarantee. Your windows are covered by our 12-year guarantee.

All our new window installations are compliant with the 7 Star Energy Rating required under the Nationwide House Energy Rating Scheme.

Our 12-Year “No Worries” Guarantee

We back our uPVC double glazed windows with a 12-year, 100% “No Worries” Guarantee. The Australian Window Association recommends 5 years of cover, and we add a further 7 years. If you have any problems with your windows within those 12 years, we will fix them for free.

Our Fixed-Price Quote Guarantee

We provide a clear and precise price breakdown for all windows and doors, so you know exactly what your project will cost. You will not face nasty surprises or hidden fees.

Where to See Our Windows

You can visit us at Wodonga, Bundoora and Vermont in Victoria, or at Hume in the ACT. Our showrooms are open by appointment. Call us on 1300 898 782 to arrange a time.

Ready to Replace Your Windows?

If your windows are showing their age or no longer perform the way they should, we can replace them with high-quality uPVC windows that look great and deliver strong thermal and acoustic insulation. Claim your free measure and quote today and find out how new windows can improve comfort in your home.

Frequently Asked Questions

How long do double glazed windows last?

Double glazed windows generally last around twenty years. Good maintenance can extend their life, while poor quality windows may fail much sooner.

How do I know if my windows need replacing?

Common signs include condensation between the panes, water leaks, draughts, cracked glass or frames, more outside noise, windows that are hard to open and close, and higher energy bills.

Does Ultimate Windows guarantee its replacement windows?

Yes. Ultimate Windows backs its uPVC double glazed windows with a 12-year “No Worries” Guarantee. If there is a problem with your windows within that time, we will fix it for free.

Will replacement windows lower my energy bills?

Replacing old windows with energy-efficient double glazing can reduce your reliance on heating and air conditioning, which can help lower your energy bills.