Sash Windows in Streatham

When it comes to the charm of your Streatham home, nothing quite elevates it like beautifully crafted sash windows. At The London Sash Window Company, we’re specialists in the field who are devoted to enhancing your home’s aesthetic and thermal efficiency through top-tier sash window solutions.

From intricate restoration projects to complete replacements, our offering caters to all your sash window needs. Reach out to us today to discuss your specifications. Our team will be happy to provide bespoke solutions that exceed your expectations.

nina foster
nina foster
Thanks Max and the fitters at The London Sash Window Company! The replacement of all my windows in a second floor converted Victorian roof flat was a large project with a number of challenges. The team did an excellent job, taking care to protect my floors and furniture as well as ensuring the work was done to a very high standard. Max managed the project meticulously and stayed in touch throughout - troubleshooting where needed and providing excellent customer care. I have already recommended the company to a friend! Best wishes to you all..! Nina Foster
Julia Dench
Julia Dench
We have just finished a big house project undertaken by The London Sash Window Company. This was by no means inexpensive and so the level of customer care and satisfaction was paramount for us during the process. Initially, I met the Head of Clients at the Company during the quotation phase for our project - requiring the exchange of most of the single glazed sash windows in our house. I was really impressed by Ann. She was not only knowledgeable but also incredibly friendly. Her expertise and warm demeanour made the experience a pleasure. It is clear that she values her clients and takes pride in her work. We then met Max, our job surveyor, who was impressive. He was ruthlessly efficient and precise in his assessment, leaving no room for error. Max’s commitment to ensuring that every detail was meticulously examined was outstanding. We felt confident in his expertise, and it greatly contributed to the overall success of our project. He was also pleasant to chat with and open to some friendly banter! I have just finished working with Costin and Ryan our fitters, alongside Danny, from the window company, and I couldn't be happier with their service. They were not only very friendly (which is incredibly important when they are in your private space on a daily basis) but also highly professional, and it was evident that they held themselves to high standards. What truly stood out was their genuine care for the outcome of the project. Their dedication and attention to detail ensured that the job was done to a very high standard. Each morning I would do a walk around with Costin and feedback any items that required their attention. He took my feedback congenially and courteously and improvements were made to those areas as the work continued. The fitters made it a point to leave our home tidy (for the most part) at the end of each workday. This level of consideration and commitment to their craft is indeed commendable. Thank you for making our window installation experience a smooth one! I would wholeheartedly recommend their services to anyone in need of window installation. Thank you, Costin, Ryan, and Danny, (and the rest of the team) for a job well done!"
Ines Kope
Ines Kope
Very pleased with the works from the London Sash window company. We had 6 windows installed and the quality of the windows and the looks are excellent. Communication was great, lead time much better than with other companies and the workers arrived promptly when scheduled and left everything clean. One thing to keep in mind that the window sills (outside) are not being done within their quotes, I had missed that so we will get that done separately. Would recommend and would use again in the future if any window work has to be done. Also, they don’t make things unnecessarily complicated. Another company wanted to install scaffolding but it wasn’t needed. You get certified security glass when you have low windows. All very professional. 5 stars. Thank you!
Tom Grayson
Tom Grayson
What a great outfit. Do what they say, do it on time and a pleasant gang. I recommend.
Mrs L
Mrs L
Very professional, on time, polite and friendly More than happy to recommend London Sash Windows
Excellent, polite and hardworking fitters
Neal May
Neal May
Excellent customer service from start to finish; from survey and advice including recommending the least expensive option, flexible throughout the process especially with planning, and extremely friendly fitters. Of course, very high quality product. Highly recommended!
Sandrine F
Sandrine F
Really nice staff, they generously helped me source a lock for a sash window. Thanks so much!

Tailored Services to Meet Your Needs

Whether it’s refurbishing your existing windows to their former glory or installing new, fully painted double-glazed windows, our team are equipped to provide a custom solution. Rest assured, the sash windows we produce are not only striking but also meticulously crafted by skilled artisans.


Master Craftsmanship and Restoration

Our team are experts in restoring your existing sash windows, balancing the delicate act of maintaining historical integrity while upgrading efficiency. We don’t simply repair; we revitalise your sash windows, preserving the allure of your home while making your windows warmer, safer, and quieter.

Innovation Meets Tradition: Double Glazed Sash Windows

Have you ever considered the superior benefits of double-glazed sash windows? The London Sash Window Company are proud to offer you this option, integrating modern insulation technologies with the elegance of traditional design.

These double-glazed units offer up to 5 times more thermal insulation compared to single glazed windows, contributing to a significant reduction in energy costs and an increase in your home’s cosiness during winter months.

Bespoke Sash Window Replacement

Should your windows have succumbed to time, our team are equipped to step in with carefully designed replacements. Our bespoke sash windows marry the charm of traditional joinery techniques with the practicalities of modern building regulations. Every window is carefully crafted, adhering to your home’s unique characteristics and enhancing its overall aesthetic.


Efficient Sash Window Repair Services

At The London Sash Window Company, we understand the value of preserving original fixtures. Therefore, our expert repair services aim to refurbish your existing windows wherever possible. Our effective draught-proofing method significantly improves insulation and reduces outside noise, enhancing your home’s comfort without the need for complete replacement.

Revel in the London Sash Window Experience with Sash Windows in Streatham

With The London Sash Window Company, you are not just getting a service – you are entering into a commitment to quality and dedication. Whether it’s the careful restoration of your beloved sash windows or a complete installation of new ones, our team provide a seamless service from start to finish.

Let us elevate the charm and efficiency of your Streatham home today. Call us on 020 8017 1632 for more information or to schedule a free, no-obligation survey and quote.

Book a FREE Survey & Quote with
London’s #1 Sash Window Specialist.

Give us a call now on
020 8017 1632



020 8017 1632

Your information is secure with our

Privacy Policy




Your enquiry has been received and one of our team will call from 020 8017 1632 shortly.


Our office hours are 9am - 5:30pm, Monday to Friday. We aim to respond immediately to all enquiries submitted during office hours, or within two hours of opening for all other enquiries.


When we call, one of our team will clarify your requirements, answer any immediate questions you have, and arrange a convenient time for an expert to visit you for a no obligation survey and quote.


While you wait for our call, why not continue to browse our site? Check the FAQs for answer to the most common questions, or be inspired with our sash window gallery!