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Our glazing specialist Jeff, Repairing a round (circular) window in Heswall, Wirral.

Secondary Glazing Wirral

Secondary glazing is the process of adding a second layer of glass behind your existing windows to increase the thermal performance of your homes. It is an extremely cost effective way of improving the efficiency and sound proofing of your home. For some homeowners the cost and disturbance of having there existing windows replace is to much and this is the perfect options. 

Secondary glazing is also the perfect options for listed building and conservation areas where the original windows cannot be removed. We have a particular slim range of secondary glazing which is perfect for this situation.

Our secondary glazing can be supplied in many different formats including horizontal and vertical sliding meaning that you can still open your windows for those hot summer months.

No job too big or small

No matter what you are looking for we are happy to help from upgrading a single room to a full home we have the expertise to complete your secondary glazing installation.

 Some of the benefits of secondary glazing include:

  • Draft proofing.
  • Sound insulation.
  • Reduce heat loss.
  • Cost effective.
  • Integrated fly panel options.
  • Listed building appropriate.
  • Made to measure.
  • Enhanced security.
  • Barely visible.



Granada secondary glazing.

We are a choosen installer for Granada the largest secondary glazing manufacturer in the UK.

For glass repair and secondary glazing

call John Knight Glazing on

on 0151 342 0200