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London’s specialist installers of traditional sash windows & doors

Our custom-made windows and doors capture all the jaw-dropping beauty of the original units, with the quality you would expect from a contemporary replacement. We serve all areas of London, so if you’re in need of replacement doors and windows then we’re the company for you.

We’re proud to say we are family run – and always will be

At London Sash Windows & Doors we’re proud to be a small, family-run window company, where we always hold our customers in the highest regard. As such, we price all of our work honestly, with absolutely no hidden costs. Our dedicated team is committed to an ethic of professionalism, craftsmanship and integrity with every project they take on, so you can feel confident that you’re receiving the best possible service.


We’re a FENSA-registered company, where all the work we carry out is compliant with current building regulations. What’s more, we’re so confident in the work we do and the prices we can offer that we provide a PRICE MATCH GUARANTEE for any genuine, like-for-like quote.

brown curtains hung in front of sash windows

Let’s explore some of the ways in which we can improve your home and lifestyle:

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Decorative flourish

Quality Installation

"Fantastic no-fuss replacement of our front bay windows. London Sash Windows arrived exactly as planned and replaced our windows in a clean and tidy manner very efficiently. Clearly experienced, the fitters were polite and delivered a high-quality installation within the predicted time advised. I'd definitely recommend the service - our windows are looking great and the installation disruption was minimal - Many thanks."


Guaranteed work completed to the exacting standard our clients expect

picturesque old Georgian terraced housing

London Sash Windows & Doors have a dedicated window installations team and never subcontract works out, unlike many of the larger companies. Our customers come to us because they trust the quality that goes into our traditional timber windows and doors, as well as the restoration services we provide for properties both heritage and contemporary. Whether you’re after sash windows installations or bespoke door installations, we’re here to help.

selection of door furniture
Don’t leave your heritage windows and doors to deteriorate over time. Contact London Sash Windows & Doors on 
020 8150 7153
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