Double and Triple Glazed Windows in the UK
Upgrade your home with modern double and triple glazed windows in the UK, designed to keep the warmth in, reduce outside noise, and improve security. At Khan Fix Glazing, we supply and fit high-quality energy-efficient windows across the UK in a wide range of styles, colours, and finishes.
Whether you’re replacing old frames, improving insulation, or looking for maximum energy efficiency, our team will help you choose between double and triple glazing to suit your property and budget.
Windows Made to Suit Your Home
Choosing the right window style makes a big difference to how your home looks and feels. That’s why we offer a wide range of double and triple glazed window style— from classic casement designs to traditional sash windows and modern flush finishes. Whatever your property type, we’ll help you find the perfect style and glazing option to match your home, insulation needs, and budget.
Casement Windows
Sash Windows
Flush Windows
Cottage Windows
Tilt and Turn
Shaped Windows
Bay Windows
Browse Double Glazing by Material
Choose from uPVC, timber, or aluminium for your double glazed windows. Each option offers excellent energy efficiency and strong security, helping keep your home warm and protected. Whether you’re updating your property with a modern look or replacing existing windows, our range of materials is versatile and made to suit your needs.
Wooden Windows
uPVC Windows
Aluminium Window
Enhanced Glazing Solutions
Explore our wider range of glazing options, including triple and secondary glazing for enhanced insulation and comfort. You can also recreate the look of coloured glass or improve privacy with our selection of obscure glass. We offer bespoke shaped windows too, including circular, triangular, and raked designs to suit your property.
Triple Glazing
Secondary Glazing
Decorative glazing
Customer Reviews
Why Choose Double or Triple Glazed Windows?
Double and triple glazing remain two of the best home upgrades in the UK — and for good reason. Both options help reduce heat loss and draughts, making your home more comfortable and energy efficient, especially during colder months.
Triple glazing offers an additional pane of glass for enhanced insulation and improved noise reduction, making it ideal for colder regions or busy areas. Double glazing remains a cost-effective and highly efficient solution for most homes.
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Guaranteed Quality
Our installations come with a trusted 10-year guarantee, giving you long-term confidence.
British Craftsmanship
Proudly made in Britain, our products combine durability, precision, and elegant design.
Best Price Assurance
We offer competitive pricing with a price match guarantee on comparable products.
Double Glazed Windows vs Sealed Glass Units
Double Glazed Windows
When we refer to double glazing, we mean the complete window unit — including the glass, frame, and all associated components. At Khan Fix Glazing, our double glazed windows are designed to deliver excellent energy efficiency, durability, and long-term performance for UK homes.
Sealed Glass Unit
A sealed glass unit refers to the glazed component within the window frame. It is made up of two panes of glass separated by a spacer bar, with the gap in between filled with inert gas to improve insulation. The unit is then fully sealed around the edges to create an airtight barrier.
Guaranteed Quality
Made to Measure
Home Improvement Provider
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Answers to your most asked questions
What does double glazing do?
Double glazing is a type of window that consists of two panes of glass with a small gap between them. The gap is filled with air or an insulating gas like argon. The two panes of glass act as a barrier to reduce the amount of heat that is transferred through the window. This provides increased insulation, which can help to reduce heat loss from your home and improve energy efficiency.
Is triple glazing good in summer?
Triple glazed windows are good in summer, but it depends where they are in the home. Triple glazing lets in less of the sun’s heat, retains more warmth and reflects it back into your room more than double glazing. So installing it in rooms that get a lot of sunlight would make them hotter than if you had double glazing, even though they let in less of the sun’s heat.
How long does double glazing last?
On average, double glazing windows can last between 10 years, with many lasting even longer. The lifespan of double glazing can be extended with proper care and maintenance, such as cleaning the frames and glass regularly and checking for any signs of wear and tear. Look for companies with long guarantees such as Anglian, as this can be a good sign of the expected lifespan.
How much does double glazing cost?
The cost of double glazing can vary depending on several factors, such as the size and type of the window, the material of the frame, the type of glass used and the installation costs. As a general guideline, the cost of double glazing for a standard-sized window can range from a few hundred to a few thousand pounds, depending on the above factors. But it’s important to note that the cost can be higher for larger or more complex windows, or for windows made from premium materials.
Does triple glazing make a room warmer?
Yes, triple glazing will help keep a room warmer thanks to its superior insulating properties. It’s ideal for rooms that tend to stay cold because they don’t get any sun, helping to keep them at a more comfortable temperature through the winter.
How does double glazing reduce heat loss?
Double glazing reduces heat loss through the window by creating a barrier that slows down the transfer of heat. Heat can transfer through a window in several ways, including conduction, convection, and radiation. The two panes of glass and the air gap between them work together to reduce the amount of heat that is transferred through the window. This means double glazing helps to keep your home warmer in the winter and cooler in the summer, which can result in lower energy bills and increased comfort.
Does triple glazing cost more than double glazing?
On average, triple glazed windows cost about a third more than double. This is due to the extra materials required to make triple glazing. That said, triple glazed windows have higher energy efficiency ratings than double glazed, further reducing heat loss. This in turn reduces the amount of energy you use heating a room. The saving makes the higher cost of triple glazed windows more cost-effective in the long run.
See our Double Glazing in Real UK Homes
