“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

Leaded Light Double Glazing

Knowles Stained Glassworks offer Leaded Light Double Glazing services to customers in and around London, Surrey, Sussex and the Home Counties.

Knowles Stained Glassworks have over 20 years of experience in encapsulating Leaded Light Double Glazing for customers in and around London, Surrey, Sussex and the Home Counties.

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Over the years Leaded Light Double Glazing has become increasingly popular as many Estate Agents and Surveyors find that it adds character and value to a property. At Knowles Stained Glassworks, we specialise in custom designing and restoring leaded light within double glazed units and are one of the leading Leaded Light Double Glazing companies within the UK. This is because we provide our domestic and commercial customers with a wide range of styles and designs to choose from or if they have a design already in mind; we can bring their vision to life. If you are looking to add a unique masterpiece to your home or property, Knowles Stained Glassworks can create something spectacular.

Crittel Metal frames & Leaded Lights Double Glazing

Here at Knowles we offer a unique service. Extensions to existing metal frames to allow encapsulated genuine leaded lights to be retained restored and sealed into toughened units. For more information about this process, then please get in contact with the team today.

The photo galleries on our website will show how we build and install the windows. First the windows are shot blasted to bare, then they are powder coated followed by The Encapsulated Process (please see The Encapsulation Process section for more details). The units are then very carefully transported to site and finally installed.

Knowles Stained Glassworks provide excellent Leaded Light Double Glazing units

Since 1995, Knowles Stained Glassworks have installed hundreds of Leaded Light Double Glazing window units within churches, hospitals, schools and homes as the process of encapsulation has become easier over the years. Due to new technology, we can carefully remove your leaded light from its aged wooden frame and can restore the original piece within our UPVC or Aluminium double glazing unit. Like all of our double glazed windows, our Leaded Light Double Glazing units are very secure and provide excellent thermal efficiency and sound reduction. Knowles Stained Glassworks can encapsulate leaded light from both coloured panels and clear panels in all shapes and sizes.

Contact Knowles Stained Glassworks for our Leaded Light Double Glazing service

Knowles Stained Glassworks have an excellent reputation and have a wonderful customer service team that can help you with any enquiry. If you are based in Horley, Crawley, Surrey, London, Sussex or The Home Counties, we can help you restore, repair and design your Leaded Light Double Glazing unit today. If you require any more information, then please get in contact with us on 01293 278326 or alternatively, 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

Leaded Light Double 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.

What Our Customers Say

“We were going to replace the polycarbonate on our conservatory roof but we were advised by Michael 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 Horley

“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 Merstrum, Surrey

“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 Bedfordshire

Download a Brochure

We have a large range of product brochures available to download. For more information on our Windows, Doors, Conservatories etc, please call us on 01293 278326.

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Kieran Boyle
Kieran Boyle
09:24 07 Jun 21
Our original stained glass panels were beautifully encapsulated and incorporated in our choice of aluminium frames.... Polite and trustworthy workers.read more
Max mmc
Max mmc
17:20 12 Mar 21
What a great experience... Knowles Stained Glassworks were helpful prompt & polite. They had everything I needed so I... will definitely return as the customer service was 1st classread more
Reviewer
Reviewer
14:07 14 Nov 20
Excellent customer service, quick turn around for our building project and a lovely finish. I wanted a pretty window... for a family bathroom (instead of just frosted glass). I had a few ideas and the team delivered a double glazed stain glass unit that exceeded expectations. I love it. Thanks for all of the hard work. Images below are before the build finished (and so sorry for the mess). But hope you agree how pretty the window is!read more
Alan Barclay
Alan Barclay
10:00 03 Nov 20
We are so pleased with the quality of the encapsulated leaded glass window. Sharon spent a lot of time with us in her... workshop to get the glass colours and design tweaked. The final product was superb and brightens our landing/hall up. The removal of the old window and fitting the new one was very quick by Michael and Tony. We would definitely use Knowles Stained Glassworks again.read more
Ian Kenyon
Ian Kenyon
09:44 14 Sep 20
Sharon was very helpful, responded quickly and gave advice. We had some old stained glass panels which we needed to be... removed from old timber, renovated and then encapsulated in double glazed units. Unfortunately the old glass was not cleaned up very well and therefore we now have to live with the dirty marks on the edges of the coloured glass which is rather disappointing given that this would have not take very long to do at the right timeread more
J B
J B
20:59 24 Sep 19
I’ve just had a front door replaced, patio doors repaired and several windows renewed from a previous less than... satisfactory company. Couldn’t be happier with the service from start to finish. 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.read more
Andrea Knowles-Jones
Andrea Knowles-Jones
18:07 24 Sep 19
I have had several windows on my property replaced at very reasonable prices but to a very high standard. Always... professional, friendly, punctual and no question was left unanswered. Can highly recommend this family run business to ensure you get the very best service expected of a long established business but with a L ocal, personal touch.read more
Google User
Google User
17:53 24 Sep 19
Would not hesitate to recommend Sharon and her team. Fantastic service from the start to the end and love the end... result. Thank you again for such an excellent serviceread more
Elaine Grobbelaar
Elaine Grobbelaar
17:06 24 Sep 19
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. The work was carried out and we couldn't be happier. The quality of the products supplied and the workmanship were faultless. Great advice and worked out cheaper than our original plan. Would definitely use them again!read more
Lucy Wood
Lucy Wood
16:59 24 Sep 19
Needed a window and back door replacing due to renovations on a house. Spoke with Sharon who sent one of her lovely... gentlemen round to measure up and then obtained a quote. We decided to have the backdoor changed to a barn door which looked amazing and fitted in lovely with our renovation project. Highly recommend Sharon and her lovely team all work was carried out to a very high standard and ensured the area was left clean and tidy after. Very happy customer.read more
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