Double Glazed Windows & Doors

Why aluminium double glazed windows & doors are a smart investment for your home

If you’ve ever noticed your home losing heat in winter or becoming unbearably warm in summer, the problem may be your windows. Standard single-glazed windows do little to insulate your home, allowing heat to escape in the colder months and trapping heat inside during summer.

That’s where double glazed windows come in – a modern solution that enhances energy efficiency, reduces noise, and increases home comfort. At Rodney Aluminium, we specialise in aluminium double glazed windows designed to suit New Zealand’s climate. In this post, we’ll explore the benefits of aluminium double glazed windows and doors, how they work, and whether they’re worth the investment.

What are double glazed windows and how do they work?

Double glazed windows consist of two panes of double glazed glass, separated by an air or gas-filled space (usually argon). This design acts as an insulating barrier, reducing heat transfer and noise pollution.

How are double glazed windows made?

1. Two panes of glass are sealed together, creating an airtight space – referred to as double glazed glass.
2. A spacer bar filled with gas (such as argon) is inserted to improve insulation.
The unit is sealed to prevent moisture from entering, minimising condensation on double glazed windows.
3. Aluminium frames are used for durability, ensuring a long-lasting and low-maintenance product.
4. This process creates a window that is significantly more effective at retaining indoor heat and blocking external noise compared to single-glazed alternatives.

Advantages of double glazed windows NZ

Switching to double glazed windows offers numerous benefits:

01/ Energy Efficiency – Reduces heat loss, lowering your power bills.

02/ Noise Reduction – Blocks external sounds, creating a quieter home.

03/ Improved Comfort – Keeps your home warmer in winter and cooler in summer.

04/ Minimised Condensation – Prevents moisture build-up on windows.

05/ Enhanced Security – Tougher than single-glazed glass, making break-ins more difficult.

These advantages make double glazed windows an excellent investment for homeowners looking to improve their property’s efficiency and value.

Aluminium large windows on modern home in Rodney

Do double glazed windows keep heat out?

Yes! Double glazed windows keep heat out during summer by reflecting external heat while keeping warmth inside during winter. This means your home stays comfortable all year round, without needing to rely heavily on heating and cooling systems.

How do double glazed windows save energy?

Because of their insulating properties, double glazed windows reduce the need for artificial heating and cooling. This means lower energy consumption and reduced power bills, making them a cost-effective and environmentally friendly choice.

Double glazed vs single glazed windows NZ – is it worth the upgrade?

Here’s a comparison to help you decide what’s right for you.

FEATURE

DOUBLE GLAZED WINDOWS

SINGLE GLAZED WINDOWS

Insulation

Superior thermal performance

Poor insulation

Noise Reduction

Significantly reduces outside noise

Minimal noise control

Energy Efficiency

Lower heating and cooling costs

High energy costs

Comfort

Keeps indoor temperature stable

Prone to temperature fluctuations

Cost

Higher initial investment

Cheaper up front, but higher long term costs

While double glazed windows cost more upfront than single-glazed ones, they pay off in energy savings, comfort, and durability over time.

Understanding the cost of double glazed windows & doors

Many homeowners ask about the price of our double glazed windows and whether they fit within their budget. Several factors affect the double glazed windows NZ cost, including:

● Size & style – Larger and custom-shaped windows cost more.
● Frame material – We use aluminium double glazed windows for their strength and low maintenance.
● Glass Options – Options like Low-E glass or tinted glass can affect pricing.

Replacing your windows? Here’s what you need to know

If your existing windows are outdated or damaged, replacing them with double glazed windows is a wise decision. Replacement double glazed window unit prices vary depending on size and specifications, but the long-term benefits far outweigh the initial investment.

Not sure if it’s time to replace your windows? Look for these signs:

Double Glazed Windows & Doors

What is Low-E Glass

Direct Fix Window Detail

Double Glazed
Windows & Doors