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Contact London Sash Windows & Doors Ltd

We are experts in replacement sash windows, casement windows and doors for commercial and residential clients alike. Whether we’re working on contemporary or heritage properties, our bespoke units are manufactured right here at our workshop in North London.

Phone: 020 8150 7153


Address: 3 Wedmore Street, Archway, London, N19 4RU

Opening hours:

Monday to Friday: 08.30 – 17.00

  • Do you have insurance?
    Yes, we carry a full range of insurance in the unlikely event of requiring them.
  • What timber do you use?
    We generally use Sapele, which is a very good natural hardwood. We also have a Engineered Redwood range available as well as Accoya and other timbers.
  • Do you work on commercial projects?
    Yes, we work with small and medium builders on a weekly basis.
  • Will I get a FENSA certificate?
    Only if the window/door is completely replaced in an existing opening with no changes as set out by FENSA.
  • Do you carry out minor repairs?
    Yes, we do as part of our overhaul and draught-proofing service. We can carry these out separately but this is not as cost effective.
  • Are new windows required?
    No, new windows are generally not required as we can provide an upgrade service where the existing window/door frame is kept and we only replace the moving sections.
  • What is the lead time?
    Lead times are generally between 10-14 weeks year round but please ask for an up-to-date lead time.
  • Where are you based?
    We are in North London and have a few small workshops. Our office address is just off of the Holloway Road, but this is not manned.
  • What areas do you cover?
    All of London postcodes but we sometimes travel to other areas of the country for regular customers.
  • What are your Warranties?
    We offer a 10 year warranty.
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