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Secondary Windows

Heritage home owners as well as others who do not to like to alter the appearance of their building had no choice earlier on but to suffer the cold draughts during winter or waste money by turning up their heating system. However, that does not mean that you cannot add a double glazed second frame to your windows which allows you to keep your home warmer without altering the appearance of the original windows.

A Secondary Window consists of internally adding a second frame to the existing window. The new frame is installed about 100 mm away from the original window. The gap in between the existing window and the new one that is added can help to reduce the heat loss by as much as 70 percent.

We provide fully bespoke Secondary Windows, which means they will fit perfectly irrespective of the type of window installed in your home. We make more than 200 different colours of the trendy and slim Secondary Windows available for you to chose from. Therefore, you will be able to find those that go well with the current style of your home. In addition, we provide different types of openings which include horizontal and vertical sliders, tilt opening, hinged and lift out, among others.

A Secondary Window is a very cost effective option when compared with home insulation. It also helps you to save a great deal of money by cutting down your energy bills. The savings will be more if the glass used is thicker. We can provide glasses of thickness up to 6.4 millimetres.

Are Secondary Windows the Right Option in my Case?

If your home has heritage value and you are not permitted to alter the existing windows, Secondary Windows will be of help. Installing Secondary Windows allows you to preserve the existing windows and maintain the character of your building in addition to keeping the home warmer.

There is no doubt about the fact that it is one of the most cost effective ways of keeping your home warmer. As energy bills continue to increase every year, it does make sense to reduce heat loss at all costs and make your home a more comfortable place to live in.

What are the Benefits of Installing Secondary Windows?

  • A warmer home with lower running costs because of the reduction in energy bills because the secondary glazing helps to conserve heat.
  • Better security as one more window is added. It also provides increased protection against unwanted intruders.
  • The secondary window reduces the outside noise.
  • Provides a more peaceful and relaxing ambience at home. You can work or relax and sleep in peace.
  • Secondary windows are personalised depending on the specification of your property. This means we provide fully bespoke service.

If you are interested in the benefits of Secondary Windows and believe they would be of help to you, then our experts can provide you with necessary advice and guidance. They can tailor these products to suit your individual needs. We are always happy to help you. You can reach us on 01473 467181.

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A Rated Windows

  • Fineline windows are typically A- or A+ rated, for maximum energy efficiency.


  • Check out our amazing finance options here at FineLine, get up to 3 years interest free credit.


  • Check out the Installation process and everything that happens throughout the project.


  • The units you have had installed should look good for a long time if you follow our guidelines.

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