Secondary Glazing Guide Fitting Instructions

Specifying and installing Extraglaze panels correctly starts with having the right information to hand. Our Measuring and Fitting Guides provide clear, step-by-step instructions to help you achieve an accurate, right-first-time installation, whether you are fitting the panels DIY in your own home or as a local tradesperson installing for a customer.

What the Fitting Guides Cover

The guides are designed to take the guesswork out of installation:

Measuring guidance - how to measure accurately before you order, reducing the risk of ill-fitting panels. Measuring Guide

Standard panel fitting - straightforward application methods for casement and sash windows. An appropriate Fitting Guide is delivered with your panel order.

Templating for shaped and out-of-square panels - detailed instructions for arched, angled, and non-standard window shapes. Templating Guide

Unless you have considerable experience of Extraglaze magnetic secondary glazing we regard our guides as critical, even for a professional tradesperson.

Additional help is always available on the phone or by emailing us photos of specific challenges. Extraglaze does not just supply a DIY product, we install it almost every day as the true professionals, on windows where only genuine expertise will meet a particular challenge. We have fitted our panels in hundreds of homes, and solved many problems, so expect expert guidance and some fantastic solutions. If you don't know how to do something, or whether you should try, please call us. Take heart - if we agree you can't do it, we can do it for you.

Why Getting the Fit Right Matters

A well-fitted Extraglaze panel does far more than improve the look of your windows. It seals out draughts, significantly reduces heat loss, and helps eliminate condensation. For those working from home, it also creates a noticeably quieter, more peaceful environment, which matters when road noise, air traffic, or general street activity disrupts your day.

Spring is a particularly good example of why this counts. When the weather is mild, opening a window feels tempting, but it brings noise alongside fresh air. Birdsong is welcome; traffic and aircraft noise rarely are. Keeping your windows closed with Extraglaze fitted means you retain the quiet without sacrificing comfort.

It is worth noting that Extraglaze performs very well against high-altitude air traffic noise, though panels in very close proximity to a busy airport may face greater challenge.

Access the Fitting Guides

The full set of Fitting Guides is available to registered users who have placed an order already. Simply sign in to access the complete library.

Need Help?

If you need further support, our helpline team is on hand, and remote guidance is available by phone, video call or email. We have considerable experience, having installed in many, many homes. It’s very likely we have a solution for any challenges you encounter. However, when the challenge is too much, or you simply don’t have the tools, we are at hand to offer you an expert installation service.

To access all our Fitting Guides please register and sign in

Reviews

1 months ago
We love then

Service rating : Simple website
Great samples
Very helpful on phone

Product : Product works as described , is easy to fit and you don’t notice it.
With some other makes when you remove the panel in the summer you are left with a black ugly Manet, but extraglazes magnet is the same colour as the window and ‘disappears’

The only negative is that they should show an example of a window with multiple openers with multiple panels vs one large panel.
We bought large panels which are a pain to store in summer and are now replacing them with individual panels which are far easier to remove and store

But overall we love them
1 months ago
Product : Great product
2 months ago
Excellent experience

Service rating : Everything went to plan. Product cut perfectly to size. Delivered to the door with friendliness and care. Would recommend the service.
Product : The product arrived on time, perfectly cut to size and finished, looks good and was easy to install. Cannot yet comment on its thermal insulation effectiveness since we are living through a U.K. heatwave. I will know in 8 months!
4 months ago
Product : Efficiently as improved insulation to a wide range of window shapes. Light and easily cleaned they can be fitted for you or done your self.

Stuart Day
5 months ago
Service rating : All very helpful and efficient

Product : Good system, looks great, not cheap, but will find out efficiency come winter.

Sam Mahon
7 months ago
Great product

Service rating : Would definitely recommend
Good product and customer service

Product : Easy to fit. Rooms much warmer. Condensation very much reduced. Very good customer service
8 months ago
Great Quality

Service rating : The product was well built, simple and solid. Easy to fit in and out of place as we can see fit. Very happy to recommend.
Product : It has made such a difference to our summer room. We had been using a compact air conditioning unit to keep the temperature down in the summer, but had been needing to leave a window open for the hose (which in turn let warm air in). Nic managed to design build and fit a simple extra glaze solution that enables us to feed the pipe through the window and keep the room closed. Very happy with the product.

Phil Birtwhistle
8 months ago
Great product and service

Service rating : Great customer service - no quibble when we receive a product with a defect. Service seems personal, human and so much better than a large company.
Product : Great product that has really helped us make our draughty old Victorian house much more energy efficient. There's an added bonus that we also hear much less noise from the road outside. They look great too - visitors are often amazed when we show them that they are there!

SLC
8 months ago
Fantastic, helpful company

Service rating : Great company. Easy to order, clear measuring guides, very well made. I always get a phone call when my order is ready, to arrange delivery.
Great, personal customer service, which is rare these days!
Product : These secondary glazing panels are perfect for my draughty little listed house. They are easy to use, look great (hardly noticeable) and are very effective at stopping the draughts.
I'm saving up so that each time I can afford another, I eliminate more draughts!
They aren't expensive for the quality, and always perfectly made and brilliantly packaged.
8 months ago
an excellent company to deal with

Service rating : Clare communication despite a re reschedule delivery and plenty of telephone advice before ordering.
Product : clear and concise installation instructions. The glazing panels were very well packed and arrived in pristine condition.
Following installation we have noticed a huge improvement in warmth and insulation, yet The secondary glazing is barely noticeable.
as these panels provide extra insulation for roof lights inside a sloped ceiling, extraglaze we’re able to supply wider magnetic strips for greater security.

James

More reviews

Extra news

Secondary Glazing vs a Glass Upgrade to Double Glazing: Which Is Right for Your Home?

The Window Efficiency Debate

In the quest for energy efficiency and comfort, homeowners often find themselves at a crossroads: should they opt for secondary glazing or invest even more in upgrading their existing windows by swapping the old glass for some modern double glazing? Both options offer promise to improve insulation and reduce energy bills, but they are significantly different in their approaches and budgets. This guide explores the nuances of each solution to help you decide which is best for your home.

A Price Guide for Secondary Glazing 

Are you tired of feeling cold in your own home, of high energy bills or constant noise from outside? Extraglaze magnetic secondary glazing could be just the solution you need. It is an additional panel fitted over your existing windows, improving insulation and reducing noise without changing your home’s appearance. And installed with very little upheaval.