7 Benefits of Retrofit Double Glazing For a Healthier Home

Enjoy Better Insulation with Retrofit Double Glazing

For a Warmer, Drier & Healthier Home

Our double glazing system improves your property's thermal efficiency by reducing your energy costs.

Acrylic secondary glazing panels are retrofitted to your existing joinery.

The key advantages of retrofitting double-glazing are:

✓ Better Thermal Insulation
✓ Increased Warmth
✓ UV Protection in Summer
✓ Reduced Condensation
✓ Outside Noise Reduction
✓ Reduced Energy Costs


How Much Does It Cost To Retrofit Double Glazing?

The average 3 bedroom Kiwi home (120m 2) costs between $5,000 - $8,000 +GST. Aside from not having to cut and replace your existing window joinery, which can be messy and intrusive to the comfort of your home. Double glazing on windows for existing dwellings requires a complete weatherproofing for window joinery. Sometimes this may be problematical. Please contact your local Magicseal Agent, to get a FREE measure and quote to confirm the actual price for your dwelling.

Advantages to considering retrofitting double glazing include: 

  MagicSeal Retrofit Double Glazing Double Glass Glazing
UV Protection Blocks Up To 80% UV Rays Reducing Furniture Fade Can Include UV Inhibitors, This Glass Is More Expensive
Noise Reduction Reduce Outside Noise By 13 decibels Reduce Outside Noise By 6 decibels
Increase Warmth  Improves Thermal Efficiency By 54% Improves Efficiency By 30-40%
Cost Comparison $8,000-$10000 Typical 3 Bedroom NZ Home $13,000+ Typical 3 Bedroom NZ Home


For a full retrofit double glazing cost comparison click here

What is Retrofit Double Glazing?

Retrofit Double Glazing is the process of installing an acrylic panel magnetically to the inside of your existing single glazing. The process is clean & quick and once fitted, unnoticeable. 

Our Retrofitted Double-Glazed Panel creates a thermal  barrier between the single pane of glass and the acrylic which is attached with a base magnetic seal and can be removed easily and cleaned.

The panel is installed internally onto existing window frames and there is no disruption to existing glass is 11 times stronger than glass and does not shatter. Manufactured from premium quality acrylic sheet and strong quality magnets from Europe.

Whether you have timber or aluminium windows, MagicSeal can apply our unique double glazing units to any shape and size single pane window. Contact us today for a free measure and quote

what is retrofit double glazing

Is Retrofitting Double Glazing worth it?


It is worthwhile considering installing MagicSeal's retrofit double glazing to your existing windows to help keep your home warmer in winter and cooler in summer.

Acrylic prevents the transfer of temperature eight times better than glass. In Winter when your heating is on you will notice your home heats up quicker and stays warmer for longer when the heating gets switched off.

Summer time expect the cool air-conditioned air to remain in your home and not dissipate through your single glazed windows, again staying cooler even when you've switched off the heat pump/air conditioning.

The cost savings alone from keeping your home more comfortable will result in a significant decrease in energy bills and an increase in warmth in winter and cooling in summer. The investment will be worthwhile for a warmer, drier, healthier home with lower energy costs and better insulation


Can I Double Glaze Existing Windows?


MagicSeal's double glazing is fitted to the inside of your existing window frames, using a magnetic seal that can be easily removed and cleaned.

The panel is installed internally onto existing window frames and there is no disruption to existing glass. The glazing is made of 3.0mm or 4.5mm cast optical grade acrylic and is warranted against crazing or discolouring for a period of 30 years. 

Single Glazing Is Responsible For 48% Heat Loss

48% of your homes heat is lost through Single glazed units. With double glazed windows you can keep your home warmer in winter and cooler in summer

single glazed heat loss without retrofit double glazing

Heating & Cooling Benefits of Double Glazing

Reduce heat in summer and heat loss in winter. Say goodbye to condensation on windows and keep your home comfortable all year round. Talk to us about replacing your single pane windows. Request a free quote today


MagicSeal's Double Glazing Stops Furniture Fading


uv protection from damaging solar radiation benefits of double glazing

UV Protection

  • Retrofit Double-Glazing can block up to 80% of UV radiation due to the UV inhibitors in our optical grade acrylic, where as ordinary glass will only block 30% of the sun’s UV radiation
  • Our Retrofit Double-Glazing helps reduce UV radiation, fading damage to carpets, curtains and other soft furnishings

7 Benefits of Retrofitting Double Glazing

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Better Insulation

MagicSeal's thermal insulation, reduces the loss of heat by up to 54% because of the trapped insulating layer of still air between the glass and the MagicSeal retrofitted double-glazing panel. In other words the still air trapped between the two surfaces acts as an insulator.

Energy Savings

As a result your home will be a lot more energy efficient once MagicSeal's Retrofit Double-Glazing is installed. Double Glazed windows virtually pays for itself as you start to save on power bills the moment it's installed. Energy savings achieved by Retrofitting MagicSeal's Secondary Glazing can contribute to direct cost power savings up to 20%.

Condensation Control

MagicSeal's Retrofitted Secondary Double Glazing will reduce the amount of condensation occurring on your windows, preventing mould growth and protecting the health of your family. MagicSeal can help, as part of a holistic approach, to minimise the condensation on your windows, thus creating a warmer, drier home.

Reduced UV Fading

With the addition of State of the Art UV stabilizers MagicSeal's acrylic is like sun block for the windows. Retrofitting MagicSeal's Secondary Double-Glazing can block up to 80% of all UV radiation due to the UV inhibitors in the optical grade acrylic, whereas standard glazing glass will only block 30% of the sun's UV radiation.

Reduced Noise

For acoustic benefits MagicSeal's Secondary, Double Glazing is retrofitted to the existing windows in such a way as to maximize the air space between the pane of glass and acrylic double glazing. This acts as an insulation baffle, therefore reduce noise and the amount of sound transmitted through the single pane.

Reduced Heat Loss

MagicSeal's Retrofit Double Glazed unit, 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 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 double glazing but traps and stops the warm air from escaping on cold evenings.

Colour Matched To Suit

MagicSeal's double glazing is custom retrofitted by professionally trained installers giving you peace of mind. Our product is colour matched to your joinery for an almost invisible finish and we can even achieve a timber grain look for those natural looking frames. Get in contact to discuss how MagicSeal can improve your homes comfort with double-glazed windows today.

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