Secondary Glazing 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 home. It is an extremely cost-effective way of improving the efficiency and soundproofing of your home. For some homeowners, the cost and disturbance of having their existing windows replaced is too much and this is the perfect option. 

Secondary glazing is also the perfect option for listed buildings 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 is 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

Reduced heat loss


Integrated fly panel options

Listed building appropriate

Made to measure

Enhanced security

Barely visible


Granada secondary glazing.

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

For glass repair and secondary glazing

call John Knight Glazing

on 0151 342 0200