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

    
 
 
       Posted on Google  
   
   Tracey Clarke 
 
 
 
 Trustindex verifies that the original source of the review is Google. Just wanted to say thank you to you all. Service  was excellent from initial enquiries to home visit survey and instalment. We are very happy with our windows and will definitely use them for future projects 😄
  
 
      Posted on Google  
   
   John Chrismas 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had Windows Plus replace our external doors, we are very pleased which was undertaken by one of their fitters. We are really pleased with all the work and the help they gave us, they are very polite and we would highly recommend Windows Plus to anybody. Many thanks.
  
 
      Posted on Google  
   
   Carol T 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brilliant service. We are very pleased with our new windows and doors. Exceptional service all round. We will definitely be using them again when we get round to replace our remaining windows.  Thank you to all of you.
  
 
      Posted on Google  
   
   Scott Dellar 
 
 
 
 Trustindex verifies that the original source of the review is Google. We spent months shopping around for quotes, finding some that were extremely expensive and others that seemed suspiciously cheap. In the end, we chose Windows Plus thanks to their no-pressure sales approach. Visiting their branch in person also helped reassure us that we were making the right choice. The installation was excellent, taking just a couple of days, and the fitters were professional, courteous and clearly took pride in their work. There were a couple of minor adjustments needed after installation, along with an issue involving some damaged glass, but every problem was dealt with promptly and without any fuss. Replacing all your windows and doors is a significant investment, so finding a company that makes the entire process straightforward and stress-free is invaluable. Everyone at this branch made the whole experience an absolute pleasure, from start to finish. A huge thank you to everyone involved for all your hard work and excellent service. We couldn’t be happier with the experience and would wholeheartedly recommend Windows Plus!
  
 
      Posted on Google  
   
   Jane Dafforn 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brilliant service from start to finish, from the quote to the fitting everything was made so easy. I am extremely happy with my window and will definitely be using you again.
  
 
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   Sarah Turner 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had our windows and doors replaced 4  years ago and was really pleased with the service and quality of product throughout our experience. We recently had to call on the guarantee for a window that had blown, a couple of emails later and had the window ordered and informed us when the window was available from the manufacturer, they made contact to arrange the replacement, and while here sorted a couple of minor niggles we had. Friendly and efficient service would highly recommend. One of the best calls on guarantee we have had to make.
  
 
      Posted on Google  
   
   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.
  
 
      Posted on Google  
   
   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
  
 
      Posted on Google  
   
   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.

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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