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.

Michael Gould

Box Sash are a truly exceptional company employing fantastic (considerate, skilled and tidy) craftspeople and a superb customer communications team. We have had a living room bay, a bathroom with two windows, a bedroom with two windows and two other bedrooms done briliiantly. We are very happy with them and we keep coming back for more.

Lottie Birmingham

I recently had a new sash window fitted in my living room and London Box Sash could not have been more helpful.Jake was absolutely brilliant and talked me through all the options and helped me choose what was right for me. The ordering process was simple and the fiting was carried out in one day and I am so happy with the finish.Would definitely recommend – the care and attention to detail is wonderful.Thank you!

Emma V

Thrilled with our 3 new box sash windows. The quality of the windows is excellent and worth every penny. I thought the price was very fair compared to other quotes I received given the quality of the wood that is used, the length of the guarantees and the ease of the company to deal with. The process from start to end has been seamless. Everyone we interacted with was superbly knowledgeable, responsive and helpful – from Harry, the sales person who helped explain all the design considerations and options very clearly, Judith in the office helping getting us booked in and Andy, the fitter. Andy consulted us on any bits where needed explaining clearly the decision that was needed and his work was to an excellent standard and he was very clean and tidy and respectful of our home. He also kindly made the suggestion to ask our decorator to angle the external sills as they were flat so that the water runs off which would help avoid any damp issues and improve longevity. His wealth of experience was very obvious and I was grateful for him sharing these pointers and discussing directly with my decorator – it’s something that would never have crossed my mind without his tip. I thoroughly recommend!

Robert Purdew

Can’t recommend enough.The windows installed seem like they’re a really high quality product. Very good customer service from end to end. They do a really thorough consultation & respond quickly to calls and emails. The day of the installation was easy and the guys who installed were quick and left no dust or mess. Followed up at the end via text, email and a call to check I was happy with the product – highly rate this approach.

Christine Haight

I found London Box Sash Windows through an online search.With my previous company, I did not get any Fensa certificate and the quality of the wood was inferior to the one used by LBSW for similar prices.They offer a 10% discount for their Standby Schedule Saving which gives very good notice for the client as well. I am very pleased with my double glazed window and the people at LBSW are very helpful.Christine Haight

Judy Carlisle

Both salesman and surveyor were straightforward, helpful and answered all questions.Installers were very efficient, worked very hard, cleaning thoroughly.Astonishingly job completed in 6 hours.The only failing was forgetting to move a chest of drawers.Judith was friendly, very helpful and reassuring

Doxy

We are delighted with our new windows. From our initial enquiry onwards everything was dealt with in a thoroughly professional, efficient and respectful way. A special mention of Andy, our fitter, whose craftsmanship and attention to detail was amazing.

Tasha Spencer

Jake provided a great consultation and really listened to my requirements. He was confident, yet gentle with his approach and so knowledgable. I received multiple quotes from providers which honestly felt like a waste of time, as they didn’t seem to listen to my needs of wanting timber only. London Box Sash Windows stood out among them all, especially for their expertise and care in period properties. Really competitive pricing as well! Cannot wait to use and would highly 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].