What are Sash Windows?
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White wooden sash window in open position -
White uPVC sash and tilt window in open position -
White uPVC sash window in dining room interior -
White uPVC sash window in open position in garden setting -
Wite uPVC tilt and slide sash window exterior -
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White uPVC tilt and slide sash windows in kitchen interior -
White wooden sliding sash windows at front of house
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 sliding sash windows can be tilted open to allow for easy cleaning.
Sash Window Materials
Our sash window materials have a wide range of custom colours and design features, so you can create the perfect look and style for your home.
uPVC Sash Windows
A durable and energy-efficient choice, we offer uPVC sash windows with a choice of 8 different colours and finishes. Upgrade your existing sash windows with our modern, practical uPVC option.
- Up to A+ rated
- Classic and Elite styles
- Dual-colour and woodgrain effects
Wooden Sash Windows
Modern wooden sash windows are energy-efficient, long-lasting and provide a natural luxury all their own. Choose from painted or stained finishes in a wide range of colours to suit period properties and modern homes.
- A or B energy rating
- Hardwood or softwood
- Over 200 RAL colour choices
Sash Window Styles
Sash windows were a staple in Georgian and Victorian homes. Customise our modern sash windows to replicate traditional designs with modern double glazing.
Victorian Sash Windows
Upgrade your Victorian sash windows with our energy-efficient modern alternatives. We can help replace period sash window details like central bars or coloured glass in conservation areas or listed buildings.
View Victorian Windows
Edwardian Sash Windows
Choose from our range of Edwardian sash windows, ideal for replacing old single-glazing while retaining that elegant Edwardian look. We have a wide range of styles, colours, and decorative elements to choose from.
View Edwardian Windows
Georgian Sash Windows
Create a beautiful feature that enhances any property with sash bay windows. Choose from uPVC or wood with a wide range of colours, configurations and finishing touches to suit your home.
View Georgian Windows
Sash Bay Windows
Create a beautiful feature with sash bay windows, a classic look that enhances any period property. Choose from uPVC or traditional wood with a wide range of colour options to suit your home. Sash bay windows offer that traditional look with modern technology.
View Bay Windows
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Reasons to Choose Sash Windows
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Warmer Home, Lower Bills
Double glazed 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 Elite 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 operating sliding sash windows 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 and look of your home, making them a good long-term investment.
Compare Sash Window Energy Ratings
Take a look at and compare the energy ratings of our uPVC and wooden sash windows. Each offers good energy efficiency to help keep your home comfortable throughout the year.
Working with the Best Industry Bodies to Install the Best Sash Windows
At Anglian, we work with only the most trusted bodies and accreditors when installing our sash windows, This is especially important when replacing windows in a conservation area. We’re here to help you create the perfect sash windows for any property, guiding you through local planning rules and design choices.
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BFRC
The British Fenestration Rating Council (BFRC) verifies the energy performance of windows and doors in the UK. Installing BFRC rated energy-efficient windows will help save money on your energy bills.
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BSI Kitemark
The BSI Kitemark™ is one of the most recognised symbols of high quality products and safety standards. Anglian has 10 Kitemark accreditations, with six for windows alone.
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BSEN12608:2003
British Standard BSEN12608:2003 Licence No KM 12876 - For colour fastness, impact resistance and corner strength uPVC frames.
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FENSA
The Fenestration Self-Assessment Scheme (FENSA) ensures replacement window and door installations comply with building regulations for England and Wales. You receive a FENSA certificate to keep as proof of compliance.
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GGF
Anglian is a leading member of the Glass and Glazing Federation (GGF). The GGF is the most influential Trade Federation in the industry, recognised by government for their in-house technical expertise, which helps influence key legislation within our sector.
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Made in Britain
The ‘Made in Britain’ marque on all our products means they are made from start to finish in a British factory by British craftspeople.
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Recovinyl Plus
Recovinyl is an initiative advancing the sustainable development of the European PVC industry by improving production processes, minimise emissions, develop recycling technology and boost the collection and recycling of waste.
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TrustMark
TrustMark is a not-for-profit organisation operating a quality mark framework in the repair, maintenance and improvement sector. Registration with Trustmark demonstrates commitment to customer service, high standards and continual improvement.
Choose Anglian for a National Company Local to you
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.
Customer Reviews
Sash Window Details
Our design team is ready to help you create your ideal sash windows, from the perfect colour to glass options. Whether you go for uPVC or wooden sash windows, you can choose the look you want, right down to the handles.
Sash Window Colours
Create sash windows with classic colours to suit your period property or choose bold colours to bring new life to any home. Our uPVC sash windows come in 8 colours with either solid or woodgrain finishes. Our timber sash windows come in 9 standard colours or a huge choice of over 200 RAL colours.
Sash Window Furniture
Complete the look of your sash windows with quality handles, locks, sash pulls, knobs and horns. Available in white, chrome or gold, you'll find the perfect finish for your uPVC or wooden sash windows. Create a more traditional feel with gold locks and lifts or a more contemporary look with chrome fixtures for a modern property.
Sash Window Glass
Add more privacy or decorative flourish to your sash windows with our range of decorative glazing. Create a stunning feature bay sash window with diamond leaded designs or elegant brilliant cut designs. Add obscure glass to bathroom windows or bespoke coloured glass designs for your period home.
Replacement Sash Windows
At Anglian, we’re experts in replacing windows in period properties. If you’re renovating your home, we can provide that traditional look with modern energy efficiency and security. All Anglian sash windows come with insurance-backed guarantees so you can be confident of a superior product and installation. This includes a 10-year guarantee for materials, parts, and labour on the window frames and 10-15 year guarantees on the sealed glazed units of your new window.
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Book a remote quote with our team on Livechat now, online Monday–Sunday 9am–5pm.
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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 more
Made to Measure Windows
Discover how we help you create bespoke windows that are just right for your space, and your home.
Find out more
Choosing the Right Window Material & Colour
Read our guide on how to choose between uPVC, wood or aluminium for your new windows.
Find out more
Window Energy Efficiency
Learn the difference between an A++ and an E rated window and why Anglian install A-rated as standard.
Find out moreYour 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.
Replacing older sash windows with modern double-glazed sash windows will help increase the energy efficiency of your home, helping to reduce heating bills. Sash windows also look fantastic, adding to the attractiveness of a property and potentially increasing its value.
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Our Accreditations and Licenses
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The British Board of Agrement provides certification on the quality of our products. -
The British Fenestration Ratings Council is the UK’s national system for rating energy efficient windows. -
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The Fenestration Self-Assessment Scheme ensures window installers comply with buildings regulations in England & Wales. -
Anglian is a leading member of the Glass and Glazing Federation (GGF). -
Certifies products made from start to finish in a British factory by British craftspeople. -
PVC Industry initiative to improve manufacturing, minimise emissions and develop recycling practices -
TrustMark is a government endorsed not-for-profit organisation that operates through more than 30 scheme operators.