Tooting sash windows offering exceptional performance

A-rated sash windows and Accoya sash windows installed in properties in Tooting, Colliers Wood and nearby areas

London Box Sash Windows is a family-owned business that has been providing high-quality timber sash windows and casement windows to the London area for over 40 years. We specialise in manufacturing and installing traditional timber sash windows and casement windows, with a strong focus on enhancing energy efficiency while preserving the architectural integrity and kerb appeal of your home.

Our experienced and dedicated team is committed to delivering a service you can trust. Whether you are looking to install new sash windows or would like to replace existing ones, we offer tailored solutions at competitive prices. Each project is handled with precision, ensuring that your expectations are not only met but exceeded.

Our sliding sash window experts manage all aspects of sash window installation. From the design and creation of bespoke sash windows to the expert installation and ongoing replacement services, we have you covered.

Our team of sash window and casement window experts has excellent reviews. One recent client said:

I used London Box Sash Windows for two separate installations over the last year and I have nothing but praise for the company. From the initial contact, through the estimating to the final installations, the people I dealt with were polite, informative, helpful, punctual and hard working. We had a mix of sash and casement windows fitted and the product is absolutely top notch. We had some issues with our builder making new openings for the windows but the advice and flexibility with the fitting dates given by LBSW made the process and the overall look of the windows superb. I’ve used a few tradespeople over the last few years and LBSW are by far the most professional and committed. A company based on wonderful craftsmanship and customer service!

For more details or a fast quote for new sliding sash windows, please contact [telme].

Colliers Wood Quality replacement sash windows & box sash windows

At London Box Sash Windows, we offer a range of traditionally handcrafted replacement sash windows designed to enhance energy efficiency while preserving the architectural integrity of your property.

From bespoke manufacturing to expert installation of sash windows, we ensure the highest quality of products and services.

We are always available to answer questions and provide detailed, individualised quotations for every project. All replacement box sash windows are custom-made and handcrafted to order, ensuring an authentic and precise reproduction.

Every product we manufacture is made to order and installed by our in-house specialists. To ensure your complete satisfaction, all our installations come with a full guarantee, giving you peace of mind and confidence in the long-lasting quality of our work.

For images of recent sash window installations, please see our portfolio.

One client said:

Phenomenal windows and service. We chose to use London Box Sash Windows following a recommendation and couldn’t be happier.The entire process from start to finish was absolutely seamless, from the initial survey, selecting designs that replicated our existing Victorian windows like for like, to the fitting and end result.We were astonished not only by the brilliant quality of the new windows (upgrading from original frames and glass means that the property is now silent, cooler and undoubtedly warmer come winter) but the speed the fitting team worked at and their attention to detail.

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Why choose sliding sash windows in Tooting, SW17?

Tooting in South London is known for its charming mix of period properties, including Victorian and Edwardian homes, which feature classic architectural details that reflect the area’s history.

These older homes often have traditional features like high ceilings, Bay windows, and ornate brickwork, making them ideal candidates for sash windows. Installing or replacing sash windows in Tooting properties can enhance their historic charm while providing modern benefits.

Sash windows are aesthetically pleasing and offer improved energy efficiency and insulation, which is essential in maintaining the comfort of these homes. Additionally, they allow for better ventilation and can be customised to match the property’s original character.

We manufacture all our products at our London factory, just a short distance from where we originally began. Even today, 90 per cent of our window installations are completed within an 8-mile radius of where they are made, and we are committed to maintaining this approach – supporting the local community while minimising our environmental impact.

Tooting Accoya sash windows

Various types of timber are available for making windows, but some are better suited than others. Accoya timber stands out as an excellent option. It is a high-tech, sustainable wood modified at the molecular level through acetylation. This advanced process prevents the timber from absorbing water, making it exceptionally stable and durable. For homeowners seeking long-lasting doors and windows, Accoya is a top choice.

Accoya offers unmatched durability. Class 1 timber lasts longer than traditional hardwoods like oak, and it comes with a 50-year manufacturer’s warranty against above-ground decay and rot. Its longevity makes it a cost-effective investment for any home. Additionally, Accoya is ideal for coatings, ensuring that your windows maintain their pristine appearance over time with minimal maintenance.

Accoya also boasts superior insulation properties, offering about 40 per cent better energy efficiency compared to other hardwoods, reducing both energy bills and carbon footprints.

With its FSC certification and recognition for sustainability, Accoya is durable and eco-friendly, making it an excellent choice for homeowners who want to prioritise both performance and environmental impact.

Philip Honer

Superb! From beginning to end. Communication is unusally good and the process seamless. Product is fantastic

R Edwards

The whole process felt simple, well organised, and stress-free, which was ideal during a loft conversion. London Box Sash found an install date extremely fast which meant we could make the building water-tight quicker than expected. We have used London Box Sash before, but I was still impressed by the quality of the windows, and the price for accoya wood as well. They’ve made a big difference in insulation and noise reduction. I would highly recommend London Box Sash Windows to anyone looking for a reliable service.

michael cronin

What stood out most was the care and attention to detail. From the moment we made our initial inquiry, the whole process was seamless and stress-free. Andy, in particular, was an absolute gem—his efficiency and friendliness made a real difference. The quality of the windows is superb, and we couldn’t be happier with the installation. We would wholeheartedly recommend London Box Sash Windows to anyone looking for new windows!

Michael Glynn

We followed our very successful window renewal with one more that needed doing. Naturally, we choose London Box Sash Windows again, and they fully lived up to our excellent previous experience. Just one man did the whole thing, on time, quietly, very thoroughly and with no mess left at all. In fact you would not know he had been, apart from a brilliant new window manufactured and fitted to the highest possible standards,

Annette Herold

I recently had new sash windows installed by London Box Sash Windows Ltd., and am very pleased with the result and how straightforward the process was. I liked having a fixed quote, and I found the company very responsive and easy to deal with. I would use them again.

Andra Chira

I had a great experience with this window sash company. The online quote tool was quick and easy, and they followed up promptly after my enquiry. They had availability to visit soon after, and Simon, who came round, was excellent – professional, clear, and really knowledgeable. I found the whole visit very informative.Although I couldn’t go ahead with the project due to a change in circumstances, the experience was excellent from start to finish. When I’m ready to pick it back up, I’ll be coming straight back to this team.

Daniel Hills

Very happy with the service we received from London Box Sash. Excellent quality windows, reliable communication and they even helped us through the lengthy planning permission process. Would recommend!

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.

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

Balham
Barnes
Biggin Hill
Brixton
Camberwell
Lambeth
Mitcham
Norbury
Norwood
Streatham
Walworth
Wandsworth

To obtain a quote for new sash windows Tooting, contact us

Would you like some expert advice about timber sash windows or a quote? Please get in touch at [telme] or email [emailme].

Contact our team for sash windows Forest Hill.