New! ThermGard TG50 Roof Glazing System

  • Wide Spans
  • Low Pitch
  • Non-Fragile

Shop Online For A Wide Selection Of Rooflights

Patent Glazing & Rooflights

Lonsdale are specialist manufacturers of high quality rooflight and patent glazing systems suitable for domestic conservatories, orangeries, glass rooms and commercial canopies, walkways and large area overhead glazing. Our range includes fixed, opening and walk-on glass rooflights, roof lanterns, glazing bars and bespoke rooflights to any shape and size.

All our overhead glazing systems are available supply only or via our national network of registered rooflight installers. We offer prompt delivery countrywide and all our roof glazing systems are designed and manufactured to the highest standards for maximum safety, durability and strength.

Looking For Some Inspiration?

Browse our gallery below which is made up of both domestic and commercial rooflights. To see more browse our dedicated galleries of domestic rooflights and commercial rooflights.


Rooflight Solutions

Advice about rooflight regulations is all part of the service and we offer rooflight solutions for non-fragility, air-tightness, weather-tightness and environmental control of the building by solar control glazing and/or roof ventilators.

Lonsdale patent glazing and rooflight solutions have been installed at some of the most important and prestigious buildings throughout the UK including roof lanterns at Windsor Castle, The British Museum and 10 Downing Street; Large area patent glazing canopies at St Pancras, Waterloo and Lime Street stations; Glass roofs at The V&A Museum, Cliveden and Buckingham Palace and flat glass rooflights at homes for Sir Rod Stewart, Sir James Dyson and The Cartier Family.

Please call our helpful Technical Team on 020 8801 4221 for professional, friendly advice or visit our design considerations and regulations sections where we deal with common roof glazing issues.


Click logos of previous clients for case studies


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