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JnL’s double glazed windows will keep your home warm, quiet and safe all throughout the year. Our double glazed uPVC windows and aluminium windows come in a variety of styles and colours to suit your home.Replacing your single glazed windows with double glazed windows is an upgrade worth the spend. There are many benefits to installing double glazing. 

dining room, living room, modern
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uPVC windows

Virtually maintenance free, highly energy efficient and secure, uPVC windows are a cost-effective and popular window material. Unlike other window materials, there’s no risk of rust, rot or need to repaint.

Made in Britain, our uPVC windows are available in a large range of colours and finishes. Choose from A or A+ double glazed uPVC windows, or upgrade to A++ triple glazing – ideal for both maximum energy savings and soundproofing if you live near a train line or airport.

If you’re looking for a modern, no-fuss window, uPVC is the choice for you. All of our window styles, including sliding sash windows, tilt & turn, casements and bay windows are available in uPVC.

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Aluminium Windows

The clean looks and light, modern material used in our double glazed aluminium windows lends a contemporary style to properties of any age. They’re high performing and energy efficient, made from strong, polyester powder-coated frames for a long-lasting finish that won’t corrode.

We can also configure the windows in any way you choose, to best suit your home.

With more than 200 colours – including dual colours – and a selection of decorative glass, fixtures and glazing options available, JnL’s double glazed aluminium windows are truly bespoke.Each aluminium casement window is individually made with your choice of colour, configuration and glass.


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Double Glazed Windows

Our double-glazed windows are individually crafted with new glass, frame and security technology in mind, and will help your home not only transform the look of your property, but make it more energy efficient, too.Our double-glazed windows will not only make your home feel cosier, but they’ll also give it a facelift and transform the look of the property immediately. 

Triple Glazed Windows

Maximise the sun’s rays for optimum heat retention and warmth by installing our triple-glazed A++ rated windows. The extra glass panel reflects more heat back into your home, making it cosier and helping to cut your heating bills. They’re our top choice for cutting out external noise, too, ensuring you feel a big difference in any room.

Secondary Glazing

Reduce draughts, quiet unwanted noise and keep your home warm without replacing your existing windows by fitting JnL’s secondary glazing.

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Why Choose J&L WINDOWS?

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High Quality Products

Focus on our clients