Secondary glazing

Secondary Glazing in Norwich, Norfolk and Suffolk

Q: What is secondary glazing?

Secondary glazing is an additional pane of glass fitted on the inside of your existing window, creating an air gap that improves insulation, cuts noise, and adds a further layer of security, without altering your original window.

Q: Is secondary glazing a good alternative to replacement windows?

It can be, particularly for listed buildings or properties in conservation areas where replacing the original windows is restricted, or where you simply want to improve performance without full replacement.

Q: How much difference does secondary glazing make to noise?

The air gap between the two layers of glass acts as an effective sound barrier, and many customers notice a marked reduction in external noise, particularly on busier roads.

Q: Will secondary glazing look obvious from inside my home?

We fit secondary glazing to blend in as much as possible with your existing windows, keeping the visual impact to a minimum while still delivering the performance benefits.

Q: Can secondary glazing be fitted to bay or bow windows?

Yes, secondary glazing can be shaped to fit most window configurations, including bay and bow windows, and we will confirm the best approach during your free survey.

An extra layer of glazing that cuts noise and heat loss without replacing your existing windows, fitted across Norwich, Norfolk and Suffolk.

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Rockdoor Trusted Installer 5.0 · Google Reviews FENSA Registered 20+ Years Experience

Secondary glazing

Why Choose Secondary Glazing?

Secondary glazing adds a second pane behind your existing window, ideal where full replacement is not needed. It’s a practical option for listed buildings, conservation areas, or anyone wanting better insulation and noise reduction without altering the original window.

Reduces heat loss through your existing windows
Cuts external noise noticeably, thanks to the air gap between panes
Adds an extra barrier against potential intruders
Helps reduce condensation build-up on window surfaces
Keeps the appearance of your existing windows unchanged
Fitted by our own experienced team, not a subcontractor

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Rosewood-effect windows and door on a red-brick building

Quality and Performance

By adding an additional pane behind your existing window, secondary glazing creates a barrier that reduces heat loss and cuts down on external noise passing through the air gap between the two layers of glass. It also adds a further barrier against intruders and helps reduce the condensation that can build up on cold glass surfaces.

White sliding sash windows on a Victorian brick terrace

Styles, Colours and Finishes

Secondary glazing is made to measure to fit your existing window openings, with frame finishes chosen to blend in with your current windows and minimal visual impact from inside the room.

Install In House

We never use subcontractors. Every window and door is fitted by our own directly employed, FENSA qualified installers.

20+ Years Experience

With over 20 years experience, our team of experienced fitters offer fast lead times and outstanding service.

Trusted by Homeowners

Hundreds of homeowners across Norwich and Norfolk have already left us honest reviews.

Peace of Mind

Every installation is backed by a full-time service engineer and a long lasting guarantee for peace of mind.

Inspiration

Our Gallery

A selection of recent installations across Norwich, Norfolk and North Suffolk. Browse below for inspiration, or get in touch to discuss a similar project for your home.

Secondary glazed sash windows in a study with a desk lamp

Sitting room with a piano and a bay window fitted with secondary glazing

Lounge with secondary glazing fitted behind leaded bay windows

What Our Customers Say

    
 
 
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   Rafael Champion 
 
 
 
 Trustindex verifies that the original source of the review is Google. Absolutely fantastic service from start to finish. The team was professional, friendly, and incredibly knowledgeable throughout the whole process. The windows look amazing and have completely transformed the appearance of our home. Installation was quick, tidy, and completed to a very high standard. Communication was excellent, and everything was finished on time with no hidden costs. You can really tell they take pride in their work. I would highly recommend this company to anyone looking for quality windows and reliable service.
  
 
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   Michael Say 
 
 
 
 Trustindex verifies that the original source of the review is Google. Lee from Windows + came and fitted our new door yesterday, we were delighted with it. Lee was very professional and the door looks great. Many Thanks
  
 
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   Clare Edgington 
 
 
 
 Trustindex verifies that the original source of the review is Google. Windows Plus just installed a new front and back door for us.  We are really pleased with the quality of the work and really good service throughout.  We will use them again and recommend them to others.
  
 
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   Tina Maddison 
 
 
 
 Trustindex verifies that the original source of the review is Google. So it’s been a few months since Windows Plus were here but I wanted to see if having 2 new doors and a couple of windows would actually make any difference to the river of condensation I’ve been coping with the previous two winters in my bungalow! Oh My goodness, Yes it certainly did!! This is the first winter I’ve been condensation free and it’s been absolutely fantastic, even feeling a bit warmer! David and Wayne were so professional and great craftsmen. The finishes were great and they dealt with any little niggles along the way with ease, even fixing my door bell (which by the way is still working great guys lol)! I couldn’t be happier with the price and service provided! I would definitely recommend Windows Plus! Many Thanks!
  
 
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   Paul Bell 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have used Windows Plus a few times and have had nothing but excellent service every time. Adrian prices competitively with no pressure sales. The service Lee provided when fitting the door was second to none. Nothing was too much trouble and when left you would never know he had been. Great job thanks guys.
  
 
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   Aisla Richards 
 
 
 
 Trustindex verifies that the original source of the review is Google. 5 stars I had been told I needed to replace my window by multiple companies and quoted over £1k for replacement. Spoke to Windows Plus and they sent out an engineer and repaired the window within a week. Super happy with the service and the finish - thank you so much!
  
 
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   chris bloggs 
 
 
 
 Trustindex verifies that the original source of the review is Google. They did a great job , Adrian was very good and helpful , price compared to two others and they came out on top , had two doors replaced , which looked good and well priced  , then had the rest of the house done 👍👍
  
 
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   Amanda Wallace 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service from start to finish. No pressurised selling, listened to requirements and installation was great.
  
 
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   Peter Clayton 
 
 
 
 Trustindex verifies that the original source of the review is Google. A Glowing review from a warm happy customer. Windows Plus fitted a new door and front windows in my flat for a reasonable price. They have already fitted a new back door and windows. Excellent service from them and I'm very happy.

Frequently Asked Questions

What is secondary glazing?

Is secondary glazing a good alternative to replacement windows?

How much difference does secondary glazing make to noise?

Will secondary glazing look obvious from inside my home?

Can secondary glazing be fitted to bay or bow windows?

Get Your Free, No-Obligation Quote

Book a free survey and quote for secondary glazing anywhere across Norwich, Sprowston, Wroxham, Catton, North Walsham, South Norfolk, and North Suffolk. We will talk you through your options and give you a clear, honest quote, with no obligation to go ahead.

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