A healthier home,
a healthier family.
Replacement double-glazed windows & doors offer improved energy efficiency and sound control for your home. Allowing greater heat retention in winter and keeping more heat out in summer while reducing our noisy environments from invading your homes. This can be achieved through our range of options for replacing your old windows and the levels of thermally broken frames and glass available.
new windows
Retrofit
Installing new energy efficient double-glazing in existing window frames that once held single-pane glass.
The process involves replacing the old glass and making minor adjustments to the frames, such as swapping out aluminum beads to fit the double glazing.
These adjustments are subtle and preserve the original look of your windows, resulting in a finished product that stays true to the authenticity of your home's existing windows.
Inserts windows
Provide an affordable solution by replacing old timber windows with new aluminium joinery, sympathetic to the original character of your home as you are able to keep your existing sills and reveals.
Insert windows allow you to keep you existing window sills.
An affordable, flexible system that is without compromising the traditional style of your home.
Full Replacements
Improve your home with full glass and aluminium framing replacement, by opting for double-glazed windows and new frames with all new sills and reveals to complete your new look and refresh your home.
Personal preference
Once the condition of your joinery has been assessed, and confirmed to be suitable for retrofitting with double glazing or insert windows, then it comes down to personal preference. Some questions to consider are:
Would you like to maintain the character of your home by keeping your existing joinery or update it for a more modern look? This is particularly applicable homes where the windows are a key part of the aesthetic appeal.
Are your window frames in need of significant repair or refurbishment, and is this a concern to you or has been identified by a builder?
Is budget a determining factor in your decision?
Your free home measure is a time for us to appraise your windows and doors and discuss the possibilities and any considerations unique to you home. This will help us find the ideal energy efficient options for your home. This is also a time to have your questions answered and for us to show you what the changes could look like.
energy efficient
Glass
Is a natural insulator which means it is a good heat absorber. It absorbs thermal energy from the sun or from your home’s interior heating, which then gradually releases from the glass into the space around it.
This heat then becomes unwanted solar heat in summer or unwanted thermal heat loss in winter. We have a range of solutions to minimise heat transfer and create a more energy efficient home. Our team can help you review which level of double glazing is right for your home.
Single-Glazed
Traditional single glazed windows have a single layer of glass to separate one environment from another. Single glazing doesn’t provide effective insulation and increasing the thickness of the glass doesn't improve its insulation. Most New Zealand homes were traditionally single glazed and are now being replace with a more energy efficient solution.
Double-Glazed
Double Glazing is when two panes of glass (separated by a layer of air), are used in a home’s window. This provides another layer of insulation for your home, decreasing heat loss through your windows. This is a good option if you do not have to much trouble with ‘crying windows’.
Double-Glazed with Argon Gas
Agon gas is an inert gas that is denser than oxygen. It is placed between glass panes as an insulated glass unit to slow the rate of heat loss. The use of this result in a more thermally efficient product.
Argon gas is a naturally occurring non-harmful gas that can increase the insulating performance of your double glazing.
By trapping a measured amount of Argon gas between the panes of glass and sealing it in, the insulating performance of your double glazing increases. Argon gas is roughly 40% denser than air and acts as a greater barrier to heat loss in the home, with a thermal performance increase at or around 15%.
This can be a good option for colder homes or on the southern side to boost the thermal efficiency.
Double-Glazed with Low-e
Low-e (Low Emissivity) is a layer on glass made to reflect the sun back out and from the house back in. Emissivity is a measure of the ability to radiate absorbed energy. Today’s low-e coatings contain one or more silver layers that reflect the sun’s ultraviolet and infrared light to help maintain a comfortable interior temperature.
This allows low-e to meet a range of individual and building requirements for reducing heat loss in cold climates and preventing overheating in warmer climates. It can be tinted or obscure to meet your needs.
This is a good option if you need to really boost your homes thermal efficiency for warming in winter and cooling in summer.
All our low-e glass comes with Argon gas included.
more info: youtube link
Thermally broken aluminium joinery
Just as double glazing prevents warmth or coldness from escaping through glass, the thermal break in an aluminium frame does the same for your joinery by stopping any heat transfer via the metal.
The result is an increased R-value* enabling Southern41™ Thermal to provide maximum protection against condensation making it easier for you to maintain your home at an optimal ‘healthy home’ minimum temperature of 18º Celsius, that will give you significant energy savings.
*The R-value is a measure of how well a product insulates – the greater the value the greater the insulation properties.
This is a good option if you are concerned about future proofing your home or live in our alpine regions where thermal efficiency is essential.
A Thermally Broken Frame is one which features a reinforced polyamide strip (a non metallic, composite, structural, material) fixed between the inside and outside aluminium profiles, creating an insulated barrier within the window frame.
energy efficient
Glass
Is a natural insulator which means it is a good heat absorber. It absorbs thermal energy from the sun or from your home’s interior heating, which then gradually releases from the glass into the space around it.
This heat then becomes unwanted solar heat in summer or unwanted thermal heat loss in winter. We have a range of solutions to minimise heat transfer and create a more energy efficient home. Our team can help you review which level of double glazing is right for your home.
Single-Glazed
Traditional single glazed windows have a single layer of glass to separate one environment from another. Single glazing doesn’t provide effective insulation and increasing the thickness of the glass doesn't improve its insulation. Most New Zealand homes were traditionally single glazed and are now being replace with a more energy efficient solution.
Double-Glazed
Double Glazing is when two panes of glass (separated by a layer of air), are used in a home’s window. This provides another layer of insulation for your home, decreasing heat loss through your windows. This is a good option if you do not have to much trouble with ‘crying windows’.
Double-Glazed with Argon Gas
Agon gas is an inert gas that is denser than oxygen. It is placed between glass panes as an insulated glass unit to slow the rate of heat loss. The use of this result in a more thermally efficient product.
Argon gas is a naturally occurring non-harmful gas that can increase the insulating performance of your double glazing.
By trapping a measured amount of Argon gas between the panes of glass and sealing it in, the insulating performance of your double glazing increases. Argon gas is roughly 40% denser than air and acts as a greater barrier to heat loss in the home, with a thermal performance increase at or around 15%.
This can be a good option for colder homes or on the southern side to boost the thermal efficiency.
Double-Glazed with Low-e
Low-e (Low Emissivity) is a layer on glass made to reflect the sun back out and from the house back in. Emissivity is a measure of the ability to radiate absorbed energy. Today’s low-e coatings contain one or more silver layers that reflect the sun’s ultraviolet and infrared light to help maintain a comfortable interior temperature.
This allows low-e to meet a range of individual and building requirements for reducing heat loss in cold climates and preventing overheating in warmer climates. It can be tinted or obscure to meet your needs.
This is a good option if you need to really boost your homes thermal efficiency for warming in winter and cooling in summer.
All our low-e glass comes with Argon gas included.
more info: youtube link
Thermally broken aluminium joinery
Just as double glazing prevents warmth or coldness from escaping through glass, the thermal break in an aluminium frame does the same for your joinery by stopping any heat transfer via the metal.
The result is an increased R-value* enabling Southern41™ Thermal to provide maximum protection against condensation making it easier for you to maintain your home at an optimal ‘healthy home’ minimum temperature of 18º Celsius, that will give you significant energy savings.
*The R-value is a measure of how well a product insulates – the greater the value the greater the insulation properties.
This is a good option if you are concerned about future proofing your home or live in our alpine regions where thermal efficiency is essential.
A Thermally Broken Frame is one which features a reinforced polyamide strip (a non metallic, composite, structural, material) fixed between the inside and outside aluminium profiles, creating an insulated barrier within the window frame.