Stunning new sash windows Wimbledon

Timber sash windows and replacement sash windows manufactured locally and installed in Wimbledon, Southfields, or nearby areas

Installing Sash Windows In Wimbledon since 1980!

Welcome to London Box Sash Windows. We are a family-run sash window company specialising in high-quality timber sash windows. Our workshop manufactures a complete range of wooden sash windows, preserving timeless elegance and style.

We have been handcrafting custom-made double-glazed sash windows for over four decades to meet our customers’ needs. Our skilled engineers use only the finest materials, ensuring our wooden sash windows are built to the highest standards. We are committed to providing exceptional products and service, earning a reputation for quality and craftsmanship.

Our sash windows team has excellent ratings on Google reviews and top reviews on Which? Trusted Traders.

One recent customer said:

Outstanding customer service and quality in every aspect and interaction. We ended up replacing all the windows that we could we these guys on the strength of the experience we had with them. Would highly recommend getting a quote from them if you are in the market for windows.

At London Box Sash Windows, we prioritise eco-friendly manufacturing that benefits customers and the economy. We produce all our products at our London factory, just down the road from Wimbledon. Remarkably, 90 per cent of our window installations occur within eight miles of their production site. This approach supports the local community and minimises our environmental footprint.

Visit our local showroom to explore our stunning range of sash windows and experience our craftsmanship firsthand. Our knowledgeable team is available to offer expert advice and help you select the perfect sash windows to match your style and needs.

To request an instant estimate or more information, please call [telme].

Why choose our Southfields sash window company for sash window installation?

Wimbledon, renowned for its prestigious tennis tournament, is known for its charming blend of historic and modern properties. Many homes in Wimbledon and Southfields feature traditional architectural styles, making them ideal for replacement sash windows.

Installing new sash windows in these properties enhances their aesthetic appeal and boosts energy efficiency and soundproofing. Modern sash windows, with advanced features like double glazing and draught-proofing, preserve the character of these historic homes while offering contemporary comfort and functionality.

Since engineer John Ellis opened our first workshop in 1980, we have specialised in double-glazed sash windows and doors, meticulously crafted to stand the test of time. Over the years, we have expanded our business, continually investing in state-of-the-art machinery to ensure our products are of the highest quality.

Our commitment to excellence is backed by a highly skilled team of craftsmen dedicated to maintaining the highest quality standards. At LBS, we take pride in delivering products that combine timeless design with enduring durability.

Please see our portfolio.

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Why choose Accoya sash windows in Wimbledon, SW19?

Accoya wood is renowned for its exceptional durability and stability, making it an ideal choice for sash windows. It is resistant to rot, decay, and insect damage, ensuring longevity. Accoya is a sustainable option with a low environmental impact, crafted from non-toxic, responsibly sourced materials. Its impressive lifespan further enhances its appeal, making Accoya wood an excellent choice for windows and doors.

With its combination of strength, sustainability, and aesthetic appeal, our sash windows are designed to stand the test of time while minimising their environmental footprint.

We are dedicated to delivering the best service to our customers. We provide a free consultation and estimate for new sliding sash windows and are always available to answer your questions. Additionally, we offer a satisfaction guarantee on all our products and services.

Another customer added:

An excellent all-round experience; the windows look fantastic, and the much-feared compulsory trickle vent is particularly discreet! If we ever need more doing, we know where to come.

A+ rated sash window installation

It is essential to prioritise energy efficiency in your home. Installing thermally efficient windows enhances your quality of life and contributes to environmental protection by lowering carbon emissions. No matter which style you select, the benefits will immediately be evident. You will experience a warmer, more comfortable living space and enjoy savings on your heating bills.

Timber sash windows are an exceptional choice for several other reasons. First, it has a significantly longer lifespan compared to alternative materials. While uPVC typically lasts 15 to 25 years and aluminium up to 30 years, timber can outlast these options by as much as 30 years when properly maintained.

Although the initial cost of timber windows and doors may be higher than that of other materials, their longevity – around 60 years – results in lower overall costs throughout their lifetime. Additionally, timber is the only mainstream construction material that is nearly infinitely renewable and regenerative.

Our windows are designed to open and close smoothly. They usually feature counterbalanced mechanisms or spring systems, enabling easy opening and closing without requiring excessive force or maintenance.

Olivia Fothergill

Absolutely fabulous service from start to finish. Top notch communication and friendly too! Andy did our sash windows for us and left the house in spotless condition and did an incredible job. We are thrilled with the results

marie Chiron

Living abroad presently, no regret having London Box Sash window replacing eight old windows with double glazed ones including two leaded windows. My initial contact, Jake, makes me at ease with the process. Judith who presented the quote, had it very well explained. Harry who is in charge of organising the actual work, upon inspection of my flat, gave me an initial details situation on potential problems i.e position of radiators, sink, gas meter etc, however worked around those problems with the engineer. Harry’s honesty was appreciated. The team of installers managed by Harry was equally good. My tenants are very happy with those new windows, they can feel the difference in temperature. From the video received, I am impressed with the end product. Would recommend London Box Sash Windows to friends and neighbours. London box sash window is a company you can trust.

Jason Ward

Excellent service throughout. High quality window. Prior survey very straight forward. Actual installation highly professional – clean workmanship, tidy and efficient. Very impressed and highly recommended.

Benjamin Cloue

Amazing experience and strongly recommend London Box Sash!From quoting with Jake, surveying with Harry, fitting with David and contract discussions with Judith, the whole team has been fantastic and provided a great customer experience.The team was always punctual and the fitting was done very fast and super clean (thank you David!).

Irena Stanwell

It is my second time I am using London Box Sash Windows replacement service. I was first of all pleased to learn that the same people were still working in the company and it was a pleasure to deal with the team who I still remembered since my first interaction with the company few year back.The performance of the LBSW was outstanding from the beginning to the end, punctual, knowledgeable, friendly and very professional. Explained all options etc and the performance on the day was seamlessWould highly recommend with no reservations..

Louise Norman

I am very satisfied with both the products and service provided by London Box Sash Windows. I was reassured by Murray’s knowledge and experience and he was helpful and patient when I was working out what I wanted. He listened, and there was no “hard sell”. Harry did the survey and Anjelo and Rafal the installation. They were all punctual and courteous. The installation was carried out quickly and efficiently, and Anjelo and Rafal took care with my property and tidied up after themselves. The aftersales care provided by Murray was excellent. Nothing seemed to be too much trouble. Having windows replaced is not a cheap option and involves a fair amount of upheaval, but I felt throughout the process that I could trust LBSW to provide value for money and make it as smooth as possible. I am very pleased with the end result. My new bay window looks great and is totally in keeping with the period of my property, including the “swept” heads. I immediately started to feel the benefits of having double-glazing in terms of heat retention, no draughts and noise reduction. I will also benefit from the improved security and low maintenance it offers. I would not hesitate to recommend London Box Sash Windows.

Fritha Hookway

So happy with the whole experience with London Box Sash. Our new windows look amazing. The whole process was very thorough, competitive in price and really quick for install – which was a nice surprise as the lead time was halved from what we’d thought it might be. The team were also exceptionally helpful when one of the old windows were were planning to replace was severely damaged during a storm. They came to board it up free of charge in the interim while the new one was still being built. Simon in particular was really helpful – a huge thank you to the whole team.

Joe Philp

A fantastic job. The end result is brilliant and a big improvement in terms of sound and thermal insulation. The team went above and beyond, taking time to understand our requirements and coming up with creative solutions. They were helpful and responsive throughout the process and the job was done quickly, carefully and meticulously – despite a last-minute adjustment that had to be made during the replacement. We felt in very safe hands and trusted the team completely – I wouldn’t hesitate to recommend.

Book a sash window survey in any of the nearby locations:-

Wandsworth
Malden
Balham
Mitcham
Putney
Raynes Park

To get a quote for new sliding sash windows or replacement sash windows in Wimbledon, call now

Would you like replacement sash windows? Please call [telme] or email [emailme].