We are proud to offer the highest quality sash windows to Clapham and central and greater London. Our entire brand has been built on quality and being family run, because we feel that it’s important that when you receive any service, that you are receiving the very best service from start to finish. That’s why you’ll find that all of our sash windows specialists are highly skilled in their craft, but are also excellent communicators who love what they do.

Not only do we provide high quality sash windows in Clapham, but we also make our sash windows services affordable and bespoke, so that you can ensure they suit your needs. From small sash windows repairs, to complete home renovations, we can cater for all of your sash windows needs. Let us take the stress out of sash windows, by entrusting us to assist you with what can be a daunting task, and deliver you long-lasting results.

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We can help you to repair smaller elements of you sash windows, but if you are looking to freshen up your property completely we can design and produce high quality and affordable sash windows from scratch. We can work with you on colours, materials, size and shaping to specifically design the sash windows you’ve been dreaming of.

Did you know about all the amazing benefits that sash windows offer? Our sash windows are great for sound proofing, cold, damp and condensation proofing. So even though they look pretty special, the benefits go so much further.


If you have any questions or if you’re looking for a free quote, then get in touch today to discuss your sash windows in Clapham.

If you have any questions or queries, you can let us know and we will provide you the most accurate information you need. Get in touch today for a free quote!

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“Everything that was done was perfect. Absolutely recommend, Steve and his team are conscientious, reliable and first class workers.”
“I’d definitely use them again for future work and wholeheartedly recommend them to others.”
“Definitely recommended, everything is thoroughly done and methodical. Very courteous and polite.”
Fantastic job, on time, on budget, great quality and nice to deal with, great looking double glazed sash windows in existing wood box frames.
London Customer
You will not be disappointed with SJB Sash Windows service. It is second to none.
Travel Daily
A new look to my house. My fantastic new windows have transformed my home.
Stephen with Sash Windows did very good work – was responsive to the first call and in giving the estimate, and scheduling. Prompt, efficient, fast workers but without losing good workmanship – so important! Careful with the wood surrounds. Cleaned up well after the work was completed. I could well recommend this firm. I had insulating strips installed.
London Customer