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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.

Matthew Carter
Matthew Carter
I’ve had 4 windows done by London Box Sash Windows now and every time the entire process from quote to installation is so smooth and stress free that I never bother to contact anyone else.The final windows are great quality and beautiful to look at and the work is always done in the timeframe agreed with the installations always carried out by very friendly and professional people.
Jody Torode
Jody Torode
We are a returning customer of London box sash windows. Initially we went with them as they were the cheapest quotes however when we needed other windows to be replaced we didn’t approach any other company, we were so happy with the job they did the first time we wanted to use them again.I was fully informed about what to expect, given clear time scales and they were super helpful in providing information to support our planning application.There was a slight hiccup with the window not being quite right however this was resolved with no issue at all, another window was made and fitted within a few weeks.The fitters are really friendly, work hard and clean. They do an excellent job and I have no complaints what so ever!The whole service from start to finish has been really positive.
Jalon Quinn
Jalon Quinn
All round excellent service from start to finish. Polite, efficient, took care with other parts of the property and cleaned up better than I could have done. Not the cheapest but worth the investment.
Sophie Rushton-Smith
Sophie Rushton-Smith
Excellent team, really helpful. The new windows fit perfectly. No draughts, easy to open and close and high quality fittings. So good, we keep going back and have changed them all.
Joseph Webb
Joseph Webb
Had a set of windows fitted in two rooms, replacing old single glazed windows with new double glazed sash windows. The new windows are a marked improvement and are keeping the house much warmer and better insulated all round. Very professional all round and easy to deal with on fitting timeframes – super speedy fitting too!
Michael Gould
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
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
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!
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Book a sash window survey in any of the nearby locations:-

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

Google Rating
5.0
Based on 131 reviews
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