Double-glazing
October 2, 2023
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There is wide variation in quality and performance of double glazing in the market. The unique safety and insulating performance of each double-glazing unit is determined by the combination of glass types and thickness, spacer type and width, gas used, manufacturing quality and joinery type.
Genuine double-glazing units are made up of 2 pieces of glass separated by a spacer bar and factory sealed together, with either air, argon or krypton gas between them. Argon and krypton gases are better insulators than air.
There are literally hundreds of options available which, when combined, determine the light transmission, reflectance, glare, insulation performance, solar heat gain, UV transmission, effect on furniture fading, noise transmission, deflection in high wind, privacy, safety and security.
High-performance, low emissivity (low E) glass, insulated spacer bars, and argon gas can more than double thermal efficiency, while thicker glass, toughened safety glass and/or laminates, are used for safety, high wind zones, and sound reduction.
It is important to use a glazing company like Wellington Glass & Mirror Ltd that has specialist expertise in glass and the NZ safety standards to ensure you get the safest and best performing solution for your home if you are:
Whether you need double glazing for new windows and doors, or to replace broken, old or failed double glazing that’s previously been installed, we can advise, supply and install the right solution for your home.
Our team will visit your home, consult with you, assess and measure your joinery, then advise you of options and provide you with an obligation-free quote.
We specialise in retrofit double glazing (retro glazing) for timber and aluminium-framed windows and doors for homes across the Wellington area.
Retro glazing will improve the value of your property and save on energy bills. Using high-performance low E glass, your home will be warmer in winter, cooler in summer and more energy efficient all year round.
Retro glazing is a fast, affordable, and unobtrusive way of double-glazing existing windows, doors, conservatories and skylights, keeping and refurbishing your existing joinery and swapping out your single glazed windows with genuine high-quality and performance double glazed units.
Call us today for a free consultation! We work across the wider Wellington City region including the Hutt Valley and up to Plimmerton.
* Double glazing prevents moisture from condensing on windows but doesn’t reduce excess moisture building up in the air inside your home. To reduce excess moisture, ventilation is key, achieved by opening windows, controlled ventilation systems, extractor fans, dehumidifiers and air conditioning.
Retro glazing your home is a significant investment so it’s important to choose the best glazing system, specific glass types and genuine high-performing double glazing products for your property and needs.
These can vary with aspect (north, south, east and west) and your priority for controlling heat loss, solar heat gain, glare, fading, privacy and noise. You also need to factor in safety glass requirements for doors, bathrooms, low-level glazing and overhead glass, and ensure the glass types chosen are appropriate for your location and wind zone.
Our consultants are experts and will help you choose the best solution and products to achieve the outcomes you want in each room of your home.
You don’t need to replace all windows at once – or even every window. You can prioritise your spending on bedrooms and main living areas, particularly if these are south facing and lose more heat than they gain.
Our experienced consultants will guide you through the process to design a solution customised to your needs and budget, based on performance data.
Modern low emissivity (low E) glass, thermal spacers and argon or krypton gas more than double the thermal performance of double glazed units for a modest additional cost. These high performance options that maximise energy efficiency have become the new standard for double glazing in New Zealand.
Low E glass effectively forms a barrier that reflects heat and limits radiation transmitted. Different types of low E glass vary in performance characteristics across the light spectrum, allowing different amounts of solar heat gain vs heat loss, visible light, glare and radiation that causes furniture fading through.
Speak with our experts today to find out more about the optimal type of double glazing for your home.
At Wellington Glass & Mirror we have reduced our price on double glazing units containing low E glass and argon gas to make them more affordable, as part of our commitment to energy efficiency and aim to help create warmer healthy homes.
There are many different types and thicknesses of glass used for double and triple glazing other than standard clear glass, including:
Please fill in the form below and we will be in contact as soon as possible.
Our team are dedicated to providing outcomes you are completely satisfied with, in compliance with the NZ Building Code, Windows & Glass Association NZ, and SiteSafe standards and ethics.
Local phone: 04 389 5555
Freephone: 0800 GLASS 4 U
PO Box 7211,
Wellington 6242,
New Zealand
Email: info@wellingtonglass.co.nz
At Wellington Glass and Mirror we are your one-stop-shop for anything glass and glazing. From glass repairs to retrofit double glazing we’ll make your home safe and warm. We also supply and install a range of interior glass including glass repairs, retrofit double glazing, frameless glass showers, custom splashbacks, balustrades, quality custom mirrors, glass cabinets, table tops and marine glazing.
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