Replacement Sash Windows

Have your windows reached the end of their lifetime?

Are they rotten, broken, or beyond repair?
Would you like to relax and enjoy the benefits of new windows?

Here at the London Sash Window Company, we are specialists in the repair and replacement of sash windows. We are able to install brand new bespoke sash or casement windows that are in keeping with your home.

All of our windows are made to measure using traditional joinery methods, yet fitted with modern requirements and meet current building regulations.

Using quality materials whether hardwood or treated softwood we provide new windows that reflect the character and look of your original windows, yet are double glazed and fully draught-proofed.

We pay particular attention to all detailing, such as glazing bars and moulding, to ensure your new windows are fully in keeping with your property. Our expert craftsmen have extensive experience working with windows in listed building or conservation areas, so you can be sure we treat your property with the respect it deserves.

All new windows are pre-painted in our own workshop, to ensure the very best finish without the need to involve other tradespeople.

  • Traditional joinery methods
  • Made to measure bespoke joinery
  • Fully draught sealed
  • Fully painted decorated inside and out
  • New window furniture and security locks
  • Compliant with building regulation
  • FENSA certificate once complete
  • Insurance backed guarantee

For more information about replacement sash windows, simply give us a call on 020 8017 1632 or book a free, no obligation survey & quote using the form on this page.


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

Give us a call now on
020 8017 1632

Certified & Guaranteed

Giving you peace of mind

Since 2002 replacement windows are governed by strict building regulations. We will ensure that all relevant building regulations are met. Once an installation is complete clients are provided with a FENSA certificate to confirm the regulations have been met. Should you decide to sell your property confirmation that building regulations have been meet will be required by your solicitor in the form of a FENSA certificate.

All replacement windows are fully guaranteed. This is our own guarantee, which is then further endorsed by a Lloyds of London insurance backed guarantee.


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

Give us a call now on
020 8017 1632

See What Our Clients Say…

“Truly exceptional work. An outstanding carpenter and decorator with an extremely high quality finish – his work is faultless. In addition he is very clean and tidy. I would like him to replace more of my windows. Thank you to the fitter – you worked long hours and were very dedicated – I am delighted.”

Adrian Darlow, Bayswater

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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.


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