double glazing reading

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Double Glazing Reading

KJM, an award-winning company established in 1982, has been providing quality double glazed products to residential and commercial buildings in Reading for many years. We have also completed a number of prestigious projects throughout Reading and Berkshire – making us a reputable industry name. KJM are the perfect choice for any double glazing home improvement projects. Contact us today to get started.

Market Leading Double Glazing

At KJM, we take pride in the quality of our products, installation, and after-sales service. We offer reliable recommendations in your local area and free, no-hassle quotations without the use of any sales gimmicks that are all too common in the home improvement industry. Our range of products includes double and triple glazed windows, composite windows, patio doors, french doors, bi-folding doors, as well as an exceptional range of conservatories, all perfect for your home in Reading. Contact us today to get started.

Windows Installation Andover

Swisspacer bar- warm edge technology- for energy saving windows

We offer a smart range of spacer bars that can be installed around the ridges of your window, conducting less heat. These are often referred to as “warm edge spacers”. These warm edge spacers can have a variety of benefits for your home, including:

  • Reduced heat loss through windows
  • Lessened condensation on window surfaces
  • Improved sound insulation for a peaceful home


Argon Gas filled sealed units

We fill the gap between our double glazed units with thermally efficient argon gas- perfect for those cold winter days in Reading. This helps to improve the energy efficiency of your home, reducing heat conduction from the inside to the outside of your home- and vice versa. This makes it perfect for harsh summer days, as well as during the bitter winter months.  Sometimes, the vacuum between the panes of glass in new double glazing is filled with air or nitrogen before being sealed. However, this can pose an issue when it comes to convection currents, which often causes your glazing to carry heat at the top and settle into cold pools at the bottom- leading to condensation and all kinds of moisture damage. However, filling the gap with an inert and less conductive gas like argon minimises these currents, reducing conduction and leading to a decrease in overall heat flow. This can help to protect your double and triple glazing for longer, making it a worthwhile investment for any Reading homeowner.

Low E Glass 

Soft Coat Low-E glass is designed to minimise heat loss while maximising energy efficiency on energy rated windows- making it perfect for all kinds of properties in Reading. It provides superior performance compared to Hard Coat Low-E glass, delivering higher insulation against heat and solar heat gain- while helping to defend against unsightly glares from the sun. Soft Coat Low-E glass also offers superior ultraviolet (UV) protection, helping to keep your home healthy and comfortable year-round.

  • Better light transmission
  • Better U-Values
  • Enhanced clarity/neutrality.

Low Iron Glass

We also work to reduce the amount of iron used in the external pane of glass, which helps to improve the solar gain of the window. Our range of windows are rated highly when it comes to thermal efficiency, scoring an “A”, and come with low iron glass as standard. If you find your Reading property is getting unbearably hot in summer, our range of double glazing might be perfect for you.

Recycled uPVC- Ethical and environmentally friendly.

For your double glazed windows, Profile 22 offers RCM (recycled composite material) for internal reinforcements- helping to bolster the durability of your Reading home while also helping the environment. RCM is made from post-consumer uPVC windows, providing an opportunity to repurpose this waste material into a new generation of products- giving older windows a new life within your home! This RCM material enhances your windows’ thermal efficiency, and delivers the strength needed from internal reinforcements without a fuss, making them a perfect way to help the environment. Find out more on our Veka Infinity page and the Profile 22 RCM page.

We also offer the VEKA Infinity Window & Door profile system, which is manufactured from recycled materials at the core, while all important external faces are constructed from durable virgin uPVC. Check out our Veka Infinity page for more information.


Triple Glazing

If you have old uPVC windows, replacing them with our Veka range of triple glazed windows can improve their energy efficiency by over 40%. With modern ‘A’ rated windows, you can enjoy a much higher level of insulation and a robust, secure locking mechanism- perfect for helping to keep your home in Reading safe. To find out more information on our triple glazed windows, please visit our triple glazing page. You can also download our free brochure for more detailed information about replacing your old uPVC windows. You can also easily contact our friendly team for more information.


Why Choose KJM?

At KJM, we know there is a wide range of double glazing companies in the Reading area who all offer great services and products. That’s why we work hard to stand out and provide something different for our customers. Our sales team work with zero commission, always offering an unbiased opinion for your home. This means they can offer you a huge range of windows, all in different materials and price ranges. No matter what your local environment looks like, we make it easy to find the right windows for your property, whether modern or traditional.

We offer a range of Residence 9 and Beaumont doubles glazing options; as well as frames in uPVC, hardwood, aluminium and more. We even offer triple glazing options for optimal thermal efficiency. If you live in a busier area in Reading and are looking for extra sound-proofing, we even specialise in secondary glazing installations, to help make your home a more peaceful and quiet place to be.

KJM’s Credentials

  • Huge product range – not just uPVC
  • Which? Trusted Trader
  • Hampshire Trading Standards approved
  • Award winners and Installer of the Year finalist
  • See our feedback on Check-a-trade
  • Non commissioned sales team – they work for you not the job
  • Energy rated windows & doors including class leading 44mm triple glazing

Double Glazing Prices Reading

Free no obligation quotes- that’s a promise!

Here at KJM, we’re proud of the fact we offer free quotes for our range of home improvement projects. We promise that you’ll never have a salesperson overstay their welcome in your home- only ever staying as long as is required. Check out our commitment to our customers by reading our promise here. Contact us using our online contact page to talk to our expert staff and start your double glazing project today!

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Awards and Accreditations

Latest News

KJM has been named as Which? Trusted Trader of the Month for February 2024.

KJM has been named as Which? Trusted Trader of the Month for February 2024.

February 2024’s Which? Trusted Trader of the Month KJM Windows & Conservatories It is all about customer service KJM Windows … Continued

KJM have a new supply partner – Liniar

KJM have a new supply partner – Liniar

KJM are pleased to announce a new addition to our range, Liniar window and door profiles to serve our customers across Hampshire, Berkshire, Dorset and Surrey

The Latest Trends in Window Design 2023: Stay Up-to-Date with KJM Group

The Latest Trends in Window Design 2023: Stay Up-to-Date with KJM Group

KJM is proud to provide top quality double and triple glazing installations to customers in Berkshire, Dorset, Surrey, and Wiltshire. … Continued


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