Retrofit Double Glazing

MagicSeal’s Retrofit Double Glazing system improves your property’s thermal efficiency by reducing your energy costs. The major benefits are acoustic insulation; thermal insulation; increased warmth; UV protection and reducing condensation. MagicSeal helps to create a better place to live and contributes to direct power savings up to 20%.

Safeguard your living environment against damaging effects of noise pollution, energy loss, condensation and  UV radiation without the mess and invasive process required for installing conventional double glazing. Our Retrofit Double Glazing is stylish, ergonomically designed to fit New Zealand window joinery, which is colour matched to suit any joinery.

MagicSeal Retrofit Secondary Double Glazing is 11 times stronger than glass and does not shatter it is manufactured from premium quality clear optical grade acrylic sheet, high performance high temperature plastics and strong quality magnets from Europe.

MagicSeal Retrofit Double Glazing  has been independently tested under the Window Energy Rating Scheme (WERS) in line with National Fenestration Rating Council (NFRC) regulations.

Where does the heat go?

So where does all the heat in your home go?


How does it work?

How it works

  • MagicSeal Retrofit Double Glazing creates a thermal and soundproofing barrier between the existing glass and the MagicSeal optical grade acrylic panel
  • MagicSeal Retrofit Windows, adhere to a base magnetic seal and can be to be removed easily
  • They are installed internally onto existing window frames and there is no disruption to existing glass or window frames
  • MagicSeal uses 3.0mm or 4.5mm cast optical grade acrylic and is warranted against crazing or discolouring for a period of 30 years.

MagicSeal's Energy Ratings WERS

Sound Acoustic Results

UV Protection Graph

Heating & Cooling Insulation


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Energy Savings with Thermal Insulation

Don't shiver in your home. MagicSeal can reduce the heat loss through your windows, allowing you to be more comfortable through cold winter days and nights. MagicSeal thermal insulation significantly reduces convective and conductive heat loss by up to 54% because of the trapped insulating layer of still air between the glass and the MagicSeal panel. In other words the “still air” trapped between the two surfaces acts as an insulator.

So your living environment will be a lot more energy efficient whether you are cooling or heating your home and MagicSeal Retrofit Double Glazing virtually pays for itself as you start to save on power bills the moment it’s installed.

Depending on the climate zone and surrounding geographical environment in which you live, energy savings achieved by MagicSeal Retrofit Double Glazing can contribute to direct cost power savings up to 20%.

Acoustic Insulation for Quieter Living

For acoustic benefits MagicSeal Retrofit Double Glazing is fitted to the existing window in such a way as to maximize the air space between the pane of glass and the MagicSeal panel. This acts as an insulation baffle, therefore reducing the amount of sound transmitted through the window.

Due to different types of material (acrylic over glass) both panes vibrate and pass different frequencies at varying time intervals thereby damping down the noise waves. In other words both panes do not vibrate in sympathy as a double glass unit would. Therefore, MagicSeal’s Retrofit Double Glazing totally out performs a standard Double Glazing unit (DGU).

MagicSeal can reduce sound transmission by up to 13 decibels, which equates to a noise reduction of 55%. Increasing the thickness of the optical grade acrylic from 3mm to 4.5mm allows a further increase in soundproofing and acoustic insulation.

Condensation Control and UV Protection

MagicSeal Retrofit Double Glazing will reduce the amount of condensation occurring on your windows and that’s a big labour saving rather than to be mopping it up every morning. Decreasing condensation can protect the health of your family by preventing mould growth and can prolong the life of window furnishings and sills. MagicSeal can help, as part of a holistic approach, to minimise the condensation on your windows, thus creating a warmer, drier home.

With the addition of ” State of the Art” UV stabilizers MagicSeal’s acrylic is like sun block for the windows. MagicSeal Retrofit Double Glazing can block up to 80% of all UV radiation due to the UV inhibitors in the optical grade acrylic, whereas ordinary glass will only block 30% of the sun's UV radiation. With MagicSeal installed you will be able to enjoy reduce fading damage to carpets, curtains and other soft furnishings.

Energy Efficient Homes

The MagicSeal Retrofit Acrylic panel works just as effectively and energy efficiently in a cooling climate as it does in a heating climate. It can prevent the heat from coming in on a scorching hot summer’s day making your home more comfortable and reducing air conditioning costs. Alternatively, in winter it will still let as much of the sun’s energy through the windows but traps and stops the warm air from escaping on cold evenings. MagicSeal significantly reduces convective and conductive heat loss by up to 54%, due to the trapped air between the panel and glass.

So not only will MagicSeal reduce the energy bill within your home, but another important factor to consider here is the extra comfort and wellbeing double glazing will bring to your living environment. It has a positive effect on the occupants’ general health and what price tag can you put on this?

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