Why Invest in New Windows and Doors

Purchasing new windows and doors is a significant investment. The good news is, with our double glazed windows and double glazed doors, it’s an investment that increases value and can pay for itself within a few years by:

• Enhancing curb appeal and boosting property resale value.

• Lowering heating and cooling costs, saving you money annually.

• Enhancing home comfort by reducing temperature extremes.

• Complying with and exceeding BASIX legislation requirements.

A study by the Australian Bureau of Statistics examined about 5,000 homes sold in the ACT between 2005 and 2006 and found that improving a house's energy performance by one star increased its market value by around 3 percent (2.5 percent in 2005 and 3.8 percent in 2006) .

Since May 2011, state governments have required anyone selling or renting a house to get an energy-efficiency assessment and star rating from an accredited assessor. How will your home perform? Installing double glazed windows is an excellent way to insulate your home, as windows can account for up to 40% of a home's energy loss.

Key Features of Energy Efficient Windows

Opting for Low-E glass enhances energy efficiency by reflecting heat back to its source. Insulated spacers between glass panes minimize heat transfer and condensation. A low U-value (below 2.0) is essential. A well-designed window frame reduces thermal transfer through the window.

Recent advancements in window technology allow our clients to benefit from the latest innovations.

Adding multiple glazing layers enhances the energy efficiency of windows and doors. Double glazing insulates almost twice as effectively as single glazing. Adding a third or fourth layer further improves performance. Some windows use only glass, while others incorporate thin plastic films as the inner glazing layer.

Air space thickness is also crucial. In double glazed windows, the air space between panes significantly impacts energy performance. Thin air spaces do not insulate as well due to higher conductivity. However, if the air space is too wide, convection loops occur. The optimal airspace for our double glazed windows and doors is 24mm, achieved by combining 4mm glass layers.

The edge spacer holds the panes apart and provides an airtight seal in an insulated glass unit. These spacers are hollow aluminum channels filled with desiccant beads to absorb moisture.

Reducing Energy Loss Through Windows and Doors

Our double glazed windows and double glazed doors have U-values of 1.8 and dual seals for exceptional tightness against wind, water, and noise, exceeding Australian Standards AS2047, AS2048, and AS1248.

The multi-chambered profile in the frame and sash traps air, enhancing insulation by reducing thermal transfer.

We also recommend using low-e glass and argon gas-filled insulated glass units to further boost the energy efficiency of your double glazed windows and doors. Replacing air with denser, lower conductivity gases like argon or krypton in a sealed insulated glass unit significantly reduces heat loss. Most major window manufacturers offer argon-gas fill as an option.

Proper installation, which leaves no gaps, is structurally safe, and ensures all window mechanisms work properly, allowing you to enjoy energy efficiency benefits for many years. Our professional installers are fully qualified, but we also offer consulting services if you choose another installer for peace of mind.

The US Department of Energy reports that up to 25-50% of heat can be lost through poorly insulated or single glazed aluminum sliding windows. This means that even with a top-of-the-line air conditioner or heater, it can only perform at 50% capacity, with the rest of the efficiency lost through your windows and doors. Would you buy an air conditioner or heater that functions at half its intended capacity? Double glazed windows and doors can make your energy consumption more efficient, save 10-25% on your energy bill, reduce carbon emissions, and promote sustainable living.

The heat loss through windows and doors can be calculated as: Ht?=A×U×(ti?−to?) where

• Ht? = transmission heat loss (W)

• A = area of exposed surface (in m2)

• U = overall heat transmission coefficient (W/m2⋅K)

  • Standard aluminum windows have a U-value of 5.4, while our double glazed windows and doors have a U-value of 1.8

• ti? = inside air temperature (°C)

• to? = outside air temperature (°C)

This formula helps you determine how much you can improve your energy use by installing our double glazed windows and doors.