Secondary Glazing

Secondary Glazing

“What our clients say”

“We were going to replace the polycarbonate on our conservatory roof but we were advised by Sharon that short term it would be much better to put the doors and window back in between the kitchen and the conservatory. Great advice and worked out cheaper than our original plan. Would definitely use them again!”
Customer in London
“I’ve just had a front door replaced, patio doors repaired and several windows renewed from a previous less than satisfactory company. Sharon kept me fully updated with pricing, ordering, delivery and fitting. Customer satisfaction is obviously important to this company unlike the previous company I’d employed.”
Customer in London
“I have had a significant number of windows and front door replaced including the encapsulation of the original 1930’s leaded lights by Knowles Stained Glassworks and I could not be happier. Would highly recommend. They are now working on the windows for my planned extension.”
Customer in London

Secondary Glazing

Secondary Glazing solutions offered by Knowles Stained Glassworks

Knowles Stained Glassworks have installed many Secondary Glazing systems around London, Surrey and Sussex in both domestic and commercial properties and we understand that due to the current economic climate, many people can no longer afford to replace their existing windows.

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Secondary Glazing helps as it significantly improves acoustic installation, thermal efficiency and reduces condensation whilst still being cost efficient.

What is Secondary Glazing?

Secondary Glazing is a fully independent window system, which is installed to the room side of the existing window. The original window remains in position and in their primary unaltered form. Secondary Glazing allows variation and can be adaptable as it is available as open-able, removable or as a fixed unit. The open-able panels allow access to the external window for cleaning and ventilation purposes. The fixed form of Secondary Glazing is designed to be removed during the warmer months when thermal requirements are not necessary.

Why is Secondary Glazing so popular?

Secondary Glazing has the ability to make your property more comfortable, eco-efficient and secure without the disruption of replacing windows or re-decorating. Furthermore, it does not affect the framework of the building.

A property’s original windows may have lasted for hundreds of years and we believe that conserving the integrity and essence of the traditional building is important. Secondary Glazing is ideal for retaining the character and uniqueness of your period property and manages to extend the life span of the original windows and doors. Knowles Stained Glassworks have helped in supplying and fitting various types of properties including houses, flats, public and private buildings, cathedrals, hospitals, churches, schools etc. We can help you protect the heritage of your property at a price you are happy with.

Knowles Stained Glassworks provide Secondary Glazing systems in a variety of styles and options. Each unit is custom-designed and practically every window type can be catered for across our wide range of products.

We have helped hundreds of customers with Secondary Glazing. With over 45 years of experience in supplying and installing Secondary Glazing you know you are in safe hands. We offer our services to customers in Horley, Crawley, Horsham, Redhill, Surrey, Sussex, London & The Home Counties. For more information about our Secondary Glazing, then please get in contact with us today by calling 01293 278326 or alternatively, please send us an email or message via the website.

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Company Accreditations & Memberships

  • Knowles Stained Glassworks
  • Knowles Stained Glassworks
  • Knowles Stained Glassworks
  • Knowles Stained Glassworks
  • Knowles Stained Glassworks
  • Knowles Stained Glassworks

Secondary Glazing – Image Gallery

Why Choose Us

Suited For All Budgets

We can help you find the right Windows, Doors and Conservatories as we have an extensive range of products available, no matter how big or small the budget.

Fantastic Guarantees

Our high quality goods and guarantees last up to 10-20 years, offering customers peace of mind and allowing them to enjoy their purchase for many years.

Energy Efficiency

We install A & A+ rated windows that can help you save hundreds of pounds a year on your energy bills. See how much you can save via our free quotation.

Customer Satisfaction

This plays an important role within our business and we always want to make sure that our customers are happy with the service we provide.

Our Products & Services