Sash Windows

Sash windows are a timeless feature of British architecture, adding elegance, character, and charm to homes across the UK. Whether you own a period property or want to recreate a traditional look with modern performance, sash windows combine classic style with today’s energy efficiency and security standards.

What Are Sash Windows?

Sash windows consist of one or two movable panels (known as sashes) that slide vertically or horizontally within the frame. Traditionally made from timber, modern sash windows are now available in uPVC and aluminium, offering the same iconic appearance with improved durability and lower maintenance.

Key Benefits

Classic British Design

Sash windows preserve the authentic look of traditional UK homes, making them ideal for period properties and conservation-style aesthetics.

Excellent Ventilation

With top and bottom opening sashes, warm air can escape through the top while fresh air enters from below, creating natural airflow.

Modern Energy Efficiency

Today’s sash windows are fitted with advanced glazing, draught-proofing, and multi-chambered frames to significantly reduce heat loss and improve comfort.

Enhanced Security

Modern sash windows include features such as sash locks, reinforced frames, and toughened or laminated glass for improved home security.

Low Maintenance Options

While traditional timber sash windows require regular upkeep, uPVC and aluminium sash windows offer the same appearance with minimal maintenance.

Types of Sash Windows

Vertical Sliding Sash Windows
The most common and traditional style in the UK, where the sashes slide up and down.

Horizontal Sliding Sash (Yorkshire Sash) Windows
A regional variation where the sashes slide side to side, often found in parts of Northern England.

Sash Window Materials

uPVC Sash Windows
A popular choice for UK homeowners seeking the classic sash look with excellent energy efficiency, durability, and affordability.

Aluminium Sash Windows
Ideal for slim frames and modern performance while maintaining a heritage-style appearance.

Sash Windows for Period & Listed Properties

Sash windows are often required for period homes and properties in conservation areas. Specialist designs can replicate original sightlines, glazing bars, and proportions while meeting modern building regulations. For listed buildings, timber sash windows are typically required, subject to local authority approval.

Colours, Finishes & Hardware

Sash windows are available in a wide range of colours and finishes, from traditional white and heritage creams to modern greys and black. Authentic hardware options such as sash horns, astragal bars, and traditional handles help maintain period accuracy.

Sash Windows and UK Building Regulations

All replacement sash windows in the UK must comply with current building regulations, including thermal efficiency and safety standards. Installation by a FENSA or CERTASS registered installer ensures compliance and certification.

Are Sash Windows Right for Your Home?

If you want to preserve or enhance the traditional character of your property without compromising on comfort or security, sash windows are an excellent choice. With a range of materials and customisation options available, they can be tailored to suit both classic and contemporary homes.

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Digital Windows (UK) Ltd

4.9

Based on 34 reviews

review us on

Aqz

16:04 12 Jan 26

Fitted Start of may-23. Required a full house change for new double glazing, secondary glazing, 2 back doors and a composite front door arch. Digital windows ltd were amazing from start to finish. They came within 2 weeks to view the property for measurements and give advice on what we can/cannot do. I asked them lots of questions and they were happy to answer. The customer service is excellent. They were clear in the lead time and therefore I had booked them in advance. They put down protection and covering throughout and ensure the place is left tidy. They took good care in ensuring no unnecessary damage was done in the way they took care for taking out the old windows. They mitre cut properly whats needed in regards to trim and take attention to detail for the final quality and finish. They ensured the inside and outside had high quality finish. Going the extra mile in the mortar/cement finish to make it look better. The team are respectful and clearly have great experience and attention to detail for a high quality finish. I am a customer who hawk eyes all the works and notices the smallest of things (like a bubble in silicone), however this company gave me peace of mind. I would 100% go back and recommend to all to go here for windows and doors. Amazing company, great quality finish and great customer service. Great work by Hatim, Mustafa and the team, Thank you!

Paul Clark

17:28 08 Jun 25

We were recommended to Digital Windows and overall we were very pleased to have chosen them. They gave us a prompt, competitive quote for Aluminium windows which took about 7 weeks from paying the deposit to installation. The fitters were very professional and the job was done to a very high standard and I would definitely use them again.

Annand Samy

16:14 23 May 25

We had a break in with an attempted theft. This company responded immediately and fixed the broken widow. Great service. I highly recommend their services.

Jodie Coyle

18:00 17 Apr 25

Very pleased with the product and level of service of the fitters from Digital Windows. The fitters came prepared with dust sheets and cleaned up everything before they left for the day.
Would definitely recommend this company. .

Mike Greatwood

16:42 16 Jan 25

Hatim and the team were responsive, helpful,
communicative and went out of their way to check I was happy with each stage of the installation. The work was of a high standard and the attention to detail was clear to see. Site and doors were left spotless. Would happily recommend…

SURESH KHAKHAR

08:58 10 Dec 24

I ordered my double glazing for the whole house in late October and was told that will be ready to fit in 6-8 weeks and we had a call early December that they will start work and within 5 days work was completed and all rubbish cleared and no bother from the workers at all and also obliged to do bits xtra for us too.Definitely recommended the company as they have been established for many years

Aasya Mughal

20:36 01 Aug 24

Highly impressed with this professional company. From a prompt and skilled initial survey to the high quality finish. The door is of superior quality and the workmanship and installation process was excellent. As a customer, I was kept updated and asked all my preferences. It has now been in place for a few months and looks like it will last for many decades. Thank-you very much to the whole team!

Julia Zemour

05:32 29 Jun 23

Digital Windows have just fitted some black metal bifolding doors in my flat, with a catflap in one of the panels. I am delighted with the results, my doors have transformed my flat and they look stunning. They were so quick to install, and dispose of the old ones. The work is immaculate, and they were tidy too. I highly recommend this company .