What are Sash Windows?
Sash windows are made up of two glazed panels called ‘sashes’ and are either single or double-hung. Moving up and down on a vertical slider, single-hung sashes have only one moving panel, while double-hung means both sashes move. Our sash windows can be tilted open, allowing for easy maintenance and more ventilation.
Explore our Sash Window Materials
Reasons to Choose Sash Windows
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Warmer Home, Lower Bills
Sash windows help keep the heat in your home with thermal inserts to stop warm air escaping, and high-performance pile weather seals to reduce draughts.
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Perfect for Conservation Areas
Customisable features like Georgian bars, decorative horns and heritage-style window furniture mean our sash windows are easily tailored for homes in conservation areas.
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Open with Ease
Perfectly counterbalanced through a system of hidden runners and springs, the internal open and close mechanism makes operation smooth and easy.
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Modern Security Features
Key operated cam locks and limit stops are standard on our sliding sash windows. Security bars and reinforced sashes further prevent intruders.
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Add Value to Your Home
Modern double glazed sash windows increase the energy performance of your home and its looks, making them a good long-term investment.
Compare Sash Window Energy Ratings
Need some help?
Book a remote quote with our team on Livechat now, online Monday–Sunday 9am–5pm.
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10-year Guarantee
A 10-year parts and labour guarantee is included in your Anglian double glazing price.
Made in Britain
Our products are made from start to finish in a British factory by skilled craftspeople.
Price Match
If you find cheaper like for like uPVC windows elsewhere, we'll match the price.
Sash Window Design Options
Sash Window Colours
Design your sash windows to suit you with a splash of colour. Anglian uPVC sash windows come in a range of 8 handpicked traditional and contemporary window colours and either a paint or woodgrain finish. Our timber sash windows come with a huge choice of over 200+ RAL colours.
Sash Window Furniture
Complete the look of your sash windows with luxury handles, locks, sash pulls, knobs and horns. Available in white, chrome or gold, you'll find the perfect finish from our uPVC and timber sash window ranges.
Sash Window Glass
Decorative glazing for Anglian sash windows is made by hand. Imagine a stunning feature box sash window with custom coloured bevelled glass effects, or our popular Georgian leaded window bars. If you can imagine it, we can almost certainly create it.
Decide if Sash Windows are Right for your Home
Do new Windows Add Value to your Home?
Learn why it's worth considering new double or triple-glazed windows to attract homebuyers.
Find out moreMade to Measure Windows
Discover how we help you create bespoke windows that are just right for your space, and your home.
Find out moreChoosing the Right Window Material & Colour
Read our guide on how to choose between uPVC, wood or aluminium for your new windows.
Find out moreWindow Energy Efficiency
Learn the difference between an A++ and an E rated window and why Anglian install A-rated as standard.
Find out moreSee what New Windows look like on your Home
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Your Questions on Sash Windows Answered by Us
It is not possible to double glaze existing single glazed sash windows. You can upgrade your existing single glazed sliding sash windows to Anglian double glazed sash windows. If you are looking to increase your window energy performance and are looking for a more affordable way to do so, then secondary glazing is a good option. Secondary glazing fits behind your existing sash windows, providing extra warmth and sound insulation.
The best way to insulate sash windows is with cost-effective secondary glazing. However, if your windows have seen better days and are draughty, it might be time to consider new double glazed A-rated uPVC sash windows to improve your window energy performance.
Timber sash windows can be made from softwood or hardwood. We have a choice of both hardwood and softwood available, made from FSC®-certified and other controlled material. The FSC® label means that wood used for timber sash windows have been responsibly sourced. The timber is weather-sealed and has a 30-year guarantee against rot and fungal attack.
To measure up for replacement sash windows, you need to measure the sash window width and height, as well as the box frame width and height (the size of the hole in which the window is set). Our sliding sash windows are custom made to fir your home, contact us to book a free remote quotation today.
Yes, the best way to soundproof sash windows is with secondary glazing. However, brand new windows with a higher energy rating tend to also be a significant upgrade from single glazed sliding sash windows for reducing noise. If you’re not sure which option is right for you, please talk to our team and we’ll be happy to explain the differences and benefits.
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