Traditional Sash Windows in London

We offer wooden sash window restoration, sash window installation, double glazing, maintenance, refurbishment and replace old sash windows.

Arthur East

Arthur is a hardworking and dedicated Glazing specialist, with over 10 years trades experience


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What Are Traditional Sash Windows?


Traditional sash windows are made up of frames and panels. The frames are typically made from timber and the panels may be made from timber, stained-glass or PVCu. When opened, the window sashes allow more air into your home which can help to reduce heating costs. Sash windows operate by lifting a series of parallel panels in each frame, allowing it to adapt to the amount of light and temperature they let in, much like human muscles.

The more pressure you exert on a sash window, the harder it will be able to push against the glass panes forming each part of its frame. Traditional Sash Windows add character and charm to a property that can often be lost in a more modern home. They are a popular and attractive choice for both modern and historic homes, as well as commercial properties. They allow you to bring the outside inside, and vice versa. Sash windows keep the cold out in winter, but let the summer breeze in and also create an open feeling throughout the home.

If you’re looking to add a little extra uniqueness to your property, or if you’re simply looking for a practical window that won’t break the bank, then it might be time to think about installing some traditional sash windows. Trade Timber Windows and Doors London are your neighbourhood window company with expert installers, superfast service and low prices. We guarantee modern styling, high quality, energy-efficient double-glazed windows in a range of traditional colours. Contact us for your quality sash windows at the most competitive prices in London.

What are the Types of Traditional Sash Windows?


Box sash

A traditional box sash window is probably what you would expect when you think of the term ‘window’. They are like any other style of sash except that they have fixed windows. These are quite popular in many domestic properties and you will see them on both sides of the Atlantic. Box Sash Windows have become a regular sight across England, particularly where there is a collection of them. We are your trusted and reliable professionals when it comes to installing top quality and comprehensive traditional sash window range in London. With several options available in our online catalogue, there’s an ideal solution for any type of property or client need. When you choose Trade Timber Windows and Doors you benefit from expert advice backed by decades of experience.

Easy clean

The best things in life are often the simplest. Such is the case with the new Easy Clean windows, a new innovation from Trade Timber Windows and Doors. These new sash leads don’t just simplify the cleaning process – they’re also easier to fit. Our easy-clean window is one that you can practically wipe down on a daily basis without the need for hours of washing. It’s all thanks to an innovative glass system that has been coated with a non-stick polymer layer and smooth powder finish, allowing dirt to simply be rinsed away. “Just wipe it off in the shower” instead of having to bust out the ladders and bucket every now and again. Made to last, trustworthy, functional and beautiful, these type of windows are going to stand the test of time.

Spring sash

Spring sash is known for its superior draught-proofing capabilities. They can be made to fit your existing opening and come in a wide range of styles. Trade Timber Windows and Doors can provide Spring sash windows to customers in London. These windows are a popular choice as they seal themselves shut when closed but are easy to open and close – a cinch to use. Trade Timber Windows and Doors are more than able to provide the best quality of the traditional sash windows at the most competitive prices in London. Contact us on 020 452 51669 or fill our online form to get started.

Benefits of Trade Timber Windows and Doors Sash Traditional Sash Windows


Timeless looks

Traditional sash windows have timeless appeal and are the perfect choice for traditional homes. Our range of traditionally styled sash windows adds a dash of character with their classic white glazed sashes and pure unpainted frames. Adding character to your home traditional style is becoming increasingly popular and for good reason. Whether you’re restoring a period property or simply want to add a dash of character to your home, chances are it will look great with traditionally designed window fixtures.

Ease of use

Our traditional sash windows are easy to open by hand and feature a crutch or balance bar. The weight of the window is distributed evenly across the width of the window, so they are much easier to use than most modern windows. You do not need to manhandle them at all, just open the top or bottom part of the window as you want – no awkward latches or hard to reach handles!

A plethora of options

Traditional sash windows offer numerous options for style, material, and feature choices, permitting homeowners to create any number of appearances — often with the very same basic design. Trade Timber Windows and Doors offer a wide selection of beautiful sash designs and over a hundred colour options. From traditional box sashes to traditional sashes, our range offers something for every project.

Energy efficient

Traditional Sash windows are energy-efficient, reducing heat loss in winter and heat gain in summer; helping you to save money on fuel bills. Trade Timber Windows and Doors provide only traditional sash windows that are well insulated and manufactured to be airtight, preventing drafts and air infiltration whilst still allowing airflow to circulate through them. Our traditional Sash Windows have an A+ rating in the energy efficiency section of the Energy Performance Certificate.

Reduced UV that prevent furnishings from fading

Are you concerned about maintaining the appearance of beloved items and furniture? Our traditional sash window frames block up to 95% of ultraviolet light, which fades everything from delicate fabrics and carpets to the paintwork on your car.

Reduced condensation on the glass

Traditional sash windows are the perfect choice in the UK climate. They have the ability to reduce condensation on glass through better air ventilation. This is accomplished by a ventilator in the window that allows outside fresh air to circulate inside. Our traditional sash windows reduce condensation on glass by up to 20%, compared to cheap aluminium or uPVC substitutes!

Reduced airborne noise, dust, and other pollutants

Airborne noise, dust and other pollutants are greatly reduced when traditional sash windows are used in comparison to other window types. Reducing these not only helps to improve comfort and health but also has a significant benefit on the property’s energy efficiency.

Our Guarantee

  • Unrivalled Expertise in Door & Window Glazing
  • Industry-approved Door & Window Glazing
  • High-quality Door & Window Glazing
  • Unbeatable Value for Money
  • 100% Safety and Satisfaction
  • Checkatrade Registered
  • Homepro Insured
  • CERTAS Guarantee

What Are the Features of Trade Timber Windows and Doors Traditional Sash Windows?


  • Quiet spring balance operation
  • Lead weight counterbalance operation
  • Sympathetic to a broad range of property styles
  • Hamptons patented QuattroGlide design
  • Engineered and Solid Sapele Mahogany or Accoya
  • Variety of glazing specifications
  • Tested to PAS24 security
  • ‘A’ rated for energy efficiency
  • Made to individual requirements

Traditional Sash Window Colours

Trade Timber Windows and Doors traditional windows colour options: all distinctive wood series products are available in the following rich, stainable colours;

  • Oak
  • Cherry
  • Mahogany
  • White Ash
  • Beige
  • Brown.
  • Green
  • Grey

How Much Do Traditional Sash Windows Cost?


Good quality at a fair price, that’s our aim. Depending on what you are looking for, there are a range of factors that will determine the cost of your windows. However, we believe what is most important is finding a look and aesthetic which suits your home or business. With this in mind, we have some of the best qualified traditional sash window experts in the industry who can help you choose the right traditional sash window to enhance your property. Get in touch with us today on 020 452 51669 or fill our online form to get a free, no-obligation quote.

Request for a FREE Quote

We offer a variety of sash window repairs, new installations, maintenance, refurbishment and replacement services in London.

To find out more about our services, get free quotations, or arrange an appointment, call this number 020 452 51669.

Why Choose Trade Timber Windows and Doors Tradition Sash Windows?


Bespoke, hand-crafted timber sashes

With a wide range of styles and sizes available, and we can handcraft you a window frame to any size. Our timber sashes are made by hand from sustainable materials, giving you a truly bespoke window.

Constructed using the original style and design to fit your home

At Trade Timber Windows and Doors, our traditional sash windows are constructed using traditional style and design to fit your home. We are located nearby in London, and our custom-made products are a great addition investment in any home.

Low maintenance and easy to look after

Our traditional sash windows are low maintenance and easy to look after. This gives you more time to make memories with your family and just have fun!

Reduced heat loss

Our traditional sash windows are renowned for their insulating properties and for reducing heating bills. On average, they allow 30% less heat loss than a modern-day double-glazed window, minimising your carbon footprint on the planet.

Effective double-glazing

Our traditional sash windows have been crafted from high-specification timber frames and available with either double glazing or simple draught-proofing. They’re designed to seal properly and minimise air leakage, improving the efficiency of your heating system‎ – while still maintaining the integrity of their distinctive style.

Experienced professionals

Trade Timber Windows and Doors are a team of experienced professionals. Our focus is on providing quality sash windows for your home, using modern techniques and methods to ensure exceptional results. With over 10 years of experience in the industry, we have built a reputation for first-class workmanship. We are recognised as an expert in our industry, and we do not compromise on quality!

Quality service

We carry out all our work to the highest possible quality and make sure that every customer leaves satisfied. Service is not just our aim, it’s our promise. Our friendly team uses only the highest quality service and materials. We’ll turn up on time, work to the highest standards and leave your home clean & tidy.


Professional Accreditation


At Ace, we have gained a great reputation for our quality design and finish that are accredited to a number of different standards including British Board of Agrément (BBA), GGF and BFRC.

We are Checkatrade-approved and a member of CERTAS, one of the finest trade associations for the London sash window industry.




Frequently Asked Questions

Can traditional Sash Windows Be Double Glazed?

Yes. Traditional sash windows can be double-glazed. However, a key factor for establishing the type of glazing to use is the correct detailing around the sash rails and stiles. We recommend contacting one of our expert team members to help you get the accurate measurements. We offer a FREE calculation service to all our window customers to help determine the suitability of their windows for glazing prior to making any decisions relating to upgrading the thermal efficiency of their Sash Windows.

How do I clean my traditional sash windows?

Cleaning is as easy as 1, 2, 3. Spray clean cloth with window cleaner and wipe glass clean. Dip the cloth into water and wring out excess liquid – this will help you scrub quickly without streaking. Wipe dry and remove water spots… if necessary.

What is the difference between sash and casement windows?

Casement and sash windows differ in a few key ways. Sash windows open by gliding up, while casement windows open with hinges on the side. When closed, sash windows will almost always rest in the sill, while casement windows require more space around them. There are a few sit-in-sill styles with sash window designs that hold the glass in place when closed, as well. Overall, though, casement and sash designs serve traditional functions: Casement windows provide ventilation and light and sash windows provide natural lighting without losing heat.

Do I need permission to install traditional windows?

Generally, you will need to obtain planning permission for the installation of traditional windows. This is because they are big items which are highly visible and therefore usually considered an adornment to your property. The size restrictions are usually set out in the national planning policy framework and these are half a metre above your window sill or 2 metres if it’s a larger window like a living room bay window. The main issue with planning is likely to be at what point the planning authority consider your house to ”look like” a new build as opposed to a traditional-looking one. In most cases, this usually requires planning permission for alterations.


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