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.

Get a quote

Drop us a line to discuss your windows

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.

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:-

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.