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About Us

Our FacilityLead Designs is a small, friendly, reliable family run business built on reputation who have been trading in the South London area for 20 years. You can be assured that we know all there is to know about insulated glass units.

The majority of our work is supplied to window, door and conservatory fabricators, suppliers and installers. We also supply to joiners, builders, glaziers and to the general public.

We can assure customers that all units manufactured are made to the highest quality available and have been tested to BS EN 1279 and are fully compliant with Document L with all units carrying a 5 year guarantee.

We have an excellent reputation for the design and manufacture of all self adhesive leadwork, whether it be squares, diamonds or more classical styles such as Queen Anne, Windsor, Jacobean or many more. Colour lead units are also our speciality from our standard range with many more options available including your own designs which our experienced staff would be happy to advise you on.

We also specialise in the following:
  • Sandblasting
  • Colour lead units
  • Glass bevel units
  • In house bevelling
  • In house polishing and drilling
  • Triple glazed units
  • Mirrors
  • Conservation bar units
  • Slimline units


If you are looking for someone to install or repair your double glazing we recommend locally based Diamond Locks and Windows who provide a professional, friendly and reliable service for all your glazing needs including the following services.

  • Window and door Installations FENSA registered with 10 years insurance backed.
  • Misted and broken Sealed Unit replacements
  • Emergency Locksmiths (no call out charge)
    Replacement handles, hinges and locks for windows and doors to B53621
  • Double glazing repairs
  • Emergency Boarding and Glazing
  • Security upgrades


CHECKATRADE approved please see reviews

Please visit website www.Diamondlocksandwindows.com or call 0208 644 7438 or
07727 414155 for professional advice and a free no obligation quote.


Get in touch today >