Founded in 1980



Fully Customisable

Fully customise your sash windows with a choice of different profile options, colours, textures, furniture, accessories, glazing and even a tilt function for easy cleaning.

Traditional, elegant and charming

Sash windows are the embodiment of timeless design – perfect for those looking to add a touch of character to their home. A firm favourite among many of our customers, they are a typical feature of Georgian, Edwardian and Victorian-era buildings and are likely to remain a part of modern-day UK architecture for years to come.

Sash windows are easily recognised by their two framed sashes which side vertically to open and close. They also feature a number of distinct furnishings (such as lifts and loops) and this further sets them apart from more contemporary window types often found in newer built homes.

Sash windows come in two styles – box sash and spring spiral. The difference between the two is purely mechanical and it can be difficult to distinguish between them, especially for someone not familiar with the details. The spring spiral is a modern innovation which uses spring balances in place of ropes and pulleys and is a much more popular choice due to its simplicity and reliability. You can see a live demonstration of each one at our Northfields showroom and decide which one is right for you.

Sash windows offer a look and feel of prestige and are often sought out by homeowners looking to increase the overall value of their property. They offer classic traditional British charm, so much so that many properties located in conservation areas are required to feature sash windows in order to satisfy building regulations.

The benefits of a sash window

There is an endless list of reasons to choose sash windows for your window replacement. Besides their aforementioned character and charm, there are many features which make them a fantastic choice for anyone seeking a practical window system that’s built to last. Here are a few common reasons why homeowners choose sash windows.


Sash windows offer a distinctive tradition look and are perfect for period-inspired properties and those who appreciate classic architectural design.


Well-maintained sash windows can last up to 50 years. This makes them a great investment and means you won’t need to worry about replacing them anytime soon.


Sash windows are built to be robust and secure. They even have the option of being locked ajar, meaning you can have an open window without risking your security.


Sliding your sash window to a position where the top and bottom are open creates a cooling convection flow – ideal for keeping cool during hot summers.

uPVC sash windows

Our UPVC sash windows are a practical and cost-effective alternative to the more traditional timber sash windows. With UPVC, you get the benefit of high performance, energy efficiency and lower cost with very few drawbacks. UPVC sash windows can be made to look indistinguishable from their timber counterpart thanks to the possibility of a wood grain finish as well as various colours to choose from.

They also offer many additional benefits, including improved thermal efficiency, weather resistance and a reduced need for maintenance. Because of this, you may also find yourself saving more money in the long in addition to the initial installation.

Timber sash windows

Timber is the classic material used in building sash windows since the 17th century. Timber sash windows have been known to last hundreds of years (yes, you read that right!) and if well maintained could last an entire lifetime, meaning you don’t have to worry about replacing them every 20 or so years. They are the environmentally-friendly option when choosing a material for your windows and can be easily recycled at the end of their life cycle. They offer good insulation and with the application of a modern finish, can be quite low maintenance too.

Timber sash windows are the clear-cut premium option and despite their higher price compared to UPVC windows, are well worth the investment.

Fully customise your sash window with a wide range of Accessory options

Personalise your windows with a wide selection of classic window furniture and accessories including different types of architrave, handles, locks and more. Virtually every aspect of your window can be customised to your liking, allowing you can express your personality and individual taste. Visit our showroom for an opportunity to explore all the available options and test out each of the furnishings before committing to buy.


Sash horns


D-handles / lifts

Travel restrictors

Pole eyes

Tilt knobs

Hover over each of the points for furniture details. Visit our Northfields showroom for a live demonstration of each one in action.

Discuss your options with a sash window specialist

Book an appointment for a consultation at our Northfields showroom or arrange a home visit from one of our experts to get a quote for your new sash windows.

Finishes and glazing options

Further customise your windows to your liking with a vast array of options including a beautiful range of paint finishes and wood grain texture. Maximise your window’s energy efficiency with double/triple glazing and enjoy some privacy with multiple frosted glass types to pick from. With so many possibilities, you’re guaranteed to get exactly what you hoped for and then some.

Established sash window experts

If you’re looking for a proven sash window specialist with a track record for providing industry-leading customer service, expert workmanship and reliability, then look no further than Peerless Windows, the go-to choice for sash window installations in the area.

10 Year Guarantee

Enjoy peace of mind with our Installsure-backed 10 year guarantee* on all window and door installations.

Over 40 Years Experience

Your home is in safe hands with our expert installation engineers and knowledgeable showroom advisors.

Award-winning products

Choose from among the very best window and door manufacturers with a reputation for outstanding quality.

Customer reviews

Take a look at some of our reviews to see just why we’re so highly regarded by residents in the local area. Peerless Windows is one of the highest-rated companies on both Trustatrader as well as Checkatrade and it’s clear to see why.

Get a quote for your sash windows

Contact us or pop into our showroom to take the first step and find out more about our sash windows. We offer free, no-obligation quotes and expert advice.