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 020 8648 4230.

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.

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!

Nicholas Black

Can only recommend! Everything went extremely smoothly. The team were always available to answer any questions and walk us through the entire process to get our new window installed. Also very competitively priced.I will be reaching out to them soon to get other slash windows replaced.

D Pryer

Very efficient local team, first to book appointment and good contact from Judith in the office. Very thorough presentation from Jake and ability to offer a discount for speedy installation.Andy installed windows and he was professional & friendly. A very clean and methodical approach.They also have an after service care should anything happen which is very reassuring.I have already recommended them to two friends of mine.

edward Davis

I was very happy with the bespoke casement window they installed in my property. The company also agreed to repair it promptly after a number of years. London box sash install high quality timber windows and seem to care about their customers.

Dieter Gatzke

Needed a couple of old aluminium windows replaced with box sashes. Found recommendation for London Box Sash Windows Ltdon Which? Trusted Traders website (where they came top for our local area with over one hundred 5* reviews). Three days after the first phone contact, Jake came to our house to quote for the job. He took his time to take us through the various product options and even brought a sample sash window to demonstrate those options (all without any of the often quite annoying hard selling tactics). The quote price wasn’t cheap but within our expectations, and therefore we decided to go ahead with this company. We were given the option to either go for a scheduled installation date 10 to 12 weeks into the future or to go on a stand-by list. We opted for stand-by and a week later Harry (installation manager) visited to take the exact measurements for the window production and to reconfirm all the chosen options. About 2 weeks later, we were given an installation date.The actual installation was done by Andy over 2 days (1 day per window). On both days he started work at 7.30am, properly preparing the room with dust sheets and covering all carpets, before even touching his tools. He worked both days non stop until about 4pm. Andy was very pleasant to have in the house. He took the time to explain the details of the installation and patiently answered all of our many questions.The best, however, was the finished product. 2 gorgeous wooden box sash windows that are perfectly balanced, so that you can actually lift the solid and quite heavy sashes with just one finger!I wish that we had used London Box Sash Windows Ltdfor the replacement sash windows at the front of our house, a job which we had done about 6 years ago. Although those were of good quality, they are nowhere close to the ones that we had done just now.Without hesitation, I will recommend London Box Sash Windows Ltd to friends and neighbours and only keep quiet about this great company to the people I don’t like …

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 020 8648 4230 or email info@londonboxsash.com.

Contact our team for sash windows Forest Hill.