Sash Windows Replacement 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 the Signs That You Need to Replace Your Sash Windows?


Sash windows are a traditional, vertically sliding form of window found throughout the UK. They consist of two or more panels made up of smaller sections (usually 3) that slide in and out at the same time. It is often tough to know when your sash windows need to be replaced. There are several signs, which can help you tell if you need to do this as soon as possible. Some of these include – warped and rotting wood frames, inky mold forming under the glass, and rattling windows. If you are a little unsure of what to look for, below are some few more signs that will help you along the way:

Visible Draughts Near Windows

If your sash windows are draughty, it’s likely that the frame is rotting. The timber will have started to rot and you should be looking for a new window irrespective of whether the glass is still intact as this will only go on getting worse. If the frame is in poor condition, you can put up with it for a while longer but when they do fail, they can fall out completely. It’s actually much better to replace them before this point as the frames may become harder to fix and could cost more money.

Loud Rattling of Glass Panes

The next time you’re sitting quietly at home, turn off the TV, sit down, and listen to the windows. Are they rattling? Is there an unpleasant whistle on windy nights when you try to sleep? If any of these are a problem for you, then it’s likely that your windows require replacement. This is because your sash windows have reached the point where they need servicing or repairing. Please give us a call and we’ll schedule an appointment at one of our showrooms to have our experts take a look at your sash windows.

Overtightened Sashes

Sash windows should be moved easily within their generous weatherings, but too often we find them exceptionally hard to open or close. This commonly happens because window cords have been overtightened over the years (if they ever had any give in them at all). Overtightening sashes can cause irreparable damage to your window frames and can prompt the need for windows replacement.

High Energy Bills

Sashes that don’t work properly let the heat out, reducing the effectiveness of double glazing and making your sash windows the costly culprit for energy bills soaring. The problem with cracked or broken sashes is that they are almost impossible to see until they are replaced.

Functionality Problems

To keep your sash windows functioning at a peak level, it’s important to ensure you don’t ignore the minor problems when they arise.
They can build up to even bigger problems in time. When you notice your sash windows are unable to function as intended, it’s time to get them replaced.

Functionality problems from a Sash window may come in many forms – such as, windows not being able to open or close properly, not locking into place appropriately or issues with latches and other similar problems.

Your Window is in a Bad State of Repair

Sash windows are typically a feature of period properties and should give your home a unique look and character. If you notice wood rot from within the sash frame or distortion as there is no longer a good fit between the two; this means your window is struggling to keep out the elements and needs replacement. The woodwork is often compromised before the glass or sashes of the window when they haven’t been replaced in many years.

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 Benefits Of Replacing Your Sash Windows?


Investing in sash window replacements has numerous long term benefits as opposed to fixing and maintaining them on an annual basis. A new window can sometimes pay for itself in just a few years and doesn’t fail as easily.  Replacing your faulty sash windows can bring a range of benefits including better access, cost savings, increased security and reducing your carbon footprint. Below are some few more benefits of replacing your sash windows.

Improved thermal efficiency

Wouldn’t you like to lower your energy bills? Reducing the amount of heat lost from your home could help you save on heating bills. If you’re looking for a means of improving the thermal efficiency in your home, then you may want to consider replacing your sash windows. Our replacement sash windows will enable you to not only reduce your energy bills but also give you and your family a healthier indoor environment to live in.

Better sound insulation

Improved sound insulation is yet another advantage of sash replacement. Replacing the sashes and hinges with durable, maintenance-free versions means you get a more solid product – one that’s better at stopping noise from getting in and out.

Better Draught-proofing

Restoring and replacing sash windows with ones that are built to modern building regulations can provide a range of benefits when it comes to reducing the effects of draughts from around the home. We make the process as simple as possible and with our draught-proofing services, your cash will stay where it’s needed most; in the bank.

Improvements on your home’s overall design

Investing in period-style sash window replacements ensures that you have an abundance of customisation options available to enhance the look of your property. All you need to do is choose the style that best matches your taste and lifestyle and our team will take care of the rest. During this process, we’ll work closely with you to ensure that you get what you want from your replacement sash windows.

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.

What Type of Windows Do We Replace?


Trade Timber Windows and Doors’ quality frames and materials, coupled with durability and minimal maintenance, are the perfect replacement for your sash windows. Our unique, affordable modern designs are custom-made by experts to fit your property: from classic to contemporary, there’s an Trade Timber Windows and Doors Sash for everyone.

uPVC Sash Windows

Trade Timber Windows and Doors Sash is one of the leading companies in the uPVC replacement window industry. With over 10 years of experience, Trade Timber Windows and Doors Sash has completed numerous domestic and commercial projects throughout London. All our products are manufactured using high-quality materials, giving you peace of mind that your new windows will stand the test of time. We can help you choose the right style, colour and material to complement your property and lifestyle. No job is too big or small for our team of experienced professionals, as we offer a complete service from design to installation of uPVC replacement windows.

Aluminium Sash Windows

Trade Timber Windows and Doors London manufactures premium aluminium sash replacement window systems for both commercial and domestic customers. We are experienced in manufacturing and installing aluminium sash windows which use the least amount of energy, are easy to close, resemble real wood, are eco-friendly, and very easy to clean. They are perfect for keeping original features but still bringing in natural light.

We can replace traditional-style designs with contemporary modern alternatives to suit your home. Our aluminium sash window replacements are made from quality products, offering attractive styling and functional improvements with a range of colours, including white and wood grain finishes.

Timber Sash Windows

Trade Timber Windows and Doors offers a full replacement service for timber sash windows, including full design and installation across London.

Your timber sash window replacements from Trade Timber Windows and Doors will breathe life into your home, giving you not only the quality of craftsmanship and detail that has made us one of the leading suppliers of timber sash windows in London, but also freedom from having to worry about noisy, inefficient, drafty windows for years to come.

Our Sash Window Replacement Services

  • Broken Window Cords
  • Window Draught-proofing System
  • Window Overhaul
  • Replacement Window Sill Section
  • Splice Repairs
  • Replacement Sashes
  • Double Glazed Existing Sash Windows
  • Double Glazed Replacement Sash Windows
  • Full Window Replacement

Why Choose Trade Timber Windows and Doors for Your Sash Windows Replacement in London?


Quality Sash Window Replacement Services

Trade Timber Windows and Doors London is one of the UK’s leading sash window replacement specialists. All of our products are made using premium materials; we don’t compromise on quality. Our excellent value for money service has earned us an excellent reputation in the industry, and as a leading supplier of sash windows in London, our customers benefit from our expertise and experience.

Guarantee For Our Replacement Sash Windows

When you choose us for your sash window replacements, we’re committed to providing a lasting solution. We offer a 10-year guarantee on all jobs. All our windows undergo strict quality control testing. We have a company policy to ensure the best possible service delivery. Our guarantee is designed to provide you with peace of mind that you’re receiving the very best in customer service and durability from a leading brand at affordable prices.

Aluminium Casement Sash Windows

Aluminium Casement Sash Windows are made from aluminium. The aluminium is formed into windows with a hinged frame and sashes that open. They are very good at keeping the weather out and they usually have a glazed panel in the top half as well as the bottom for natural light to enter. This type of window is particularly good for conservatories because it enables you to see outside without allowing the elements in. Our aluminium Casement Sash Windows are designed to be wind-tight, to have a low U-Value and to be maintenance-free.

Replacement Windows Hand-crafted by Experts

Sash Windows by Trade Timber Windows and Doors London are hand-crafted from the finest materials and designed to complement the unique architectural style of your home. With a heritage of over 10 years as experts in sash window replacement, you can be sure that when you choose our products for your home, you’ll receive expert craftsmanship, reliability and durability.

Compliant with Building Regulations

Trade Timber Windows and Doors London will install industry-standard replacements to bring you comfort and peace of mind. Each superior quality window is handmade to meet all current building regulations, as well as being the most energy-efficient on the market today.

Exceptional Customer Service

Our exceptional customer service is the key to our success. Since 2010, we’ve been providing professional services that are tailored to meet your individual requirements. Our unique approach has helped us become one of London’s most popular sash companies and has also set us apart in the national scheme of things.

Affordable Prices

If you are looking for fast and affordable service, then your first call should be to Trade Timber Windows and Doors Sash Windows London. We believe that affordable doesn’t mean cheap and our knowledgeable staff will help find solutions to your home improvement needs while maintaining quality and design.

What Areas Do We Cover?


We can handle your replacements anywhere in Greater London including West London, North London, Central London, East London and South-East London. From flats to offices and industrial properties, we cover all the most popular areas around Wandsworth, Fulham, Chelsea, Hammersmith & Finsbury Park, Clapham and Borough, Balham & Tooting, Holloway and Islington. Contact us today to find out whether we cover your area, and get a free survey and no-obligation quote to improve your property.




Frequently Asked Questions

How Long Does it Take to Replace a Sash Window?

The time taken to complete a standard sash window replacement could vary depending on how busy you are and how complicated the work is.We can replace your sash window within a few hours or a full day, depending on the size. Design, measure, quality check and fitting are all completed within this time to leave you with the best-finished product.

What time of year is best to replTrade Timber Windows and Doors?

The months before winter is the best time to replTrade Timber Windows and Doors. When the outside temperature drops, you’ll be grateful for the warmth and insulation of your new windows. Sash window replacement is a great way to get better energy efficiency from your home and reduce your carbon footprint.

Should I replace all windows at once?

It is a great idea to replace all of your windows at once if you can afford it. That is because when you have to come back to the job down the road, it is much harder and more expensive than doing it all at once.

How much does it cost to repair an old window?

It depends on the type of window. If it’s a sash window, most repairs will depend on size and material. What we charge depends on the difficulty of the repair, how much extra glazing is needed, and how much work is involved in removing and replacing them.

Is it cheaper to repair or replTrade Timber Windows and Doors?

The answer depends on a number of factors, including the type and extent of the damage. In some cases, repairing is cost-effective, easy to perform and can be useful for older homes and historical buildings. Although, you should note that while the cost of repairing your windows may be cheaper than replacing them, the cost of maintaining your windows can add up over time.


Information about London


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