Patent Glazing & Roof Lights Quotes
Quick Guide to Products
Which system to use?

Unheated Spaces, canopies, station and platform glazing SkyGard should be your first choice if using 6 to 7mm thick glass. If considering different glass thickness, then PlasGard would be your next choice

Heated Spaces
ThermGard is our thermally broken system providing excellent Uvalues and air-tightness when combined with insulating double glazed units for compliance with Building Regulations Part L.

Self-supporting Lanterns or SkyLights
SpanGard self-supporting rooflights feature extruded cill, ridge & hip members to provide you with a complete kit pre-fabricated upto 6m wide by infinite length without the need for additional support, other than a load-bearing curb.

If using Polycarbonate
PlasGard offers a range of glazing bars & accessories for use with ‘plastic’ glazing materials for unheated spaces. If you require a thermally broken system, then please see our ThermGard ALM500 Series

Rafter Glazing
If fitting glazing bars on top of continuous timber rafters, then section reference ALM100/WF suitable for single or double glazing from our ThermGard range, provides neat, low-profile appearance combined with excellent weather tightness and low-maintenance.

Need ventilation?
GlazaTherm roof vents can be incorporated in sloped glazing and fitted with manual, electric or smoke actuators. Alternatively we can provide casement vents in the upstands of lantern lights when required.
Consult the experts
Tel: +44(0)208 801 4221
Email: info@lonsdalemetal.co.uk
Architects and Specifiers
Main Contractors
Installers
Building & Home Owners

Main Contractors


Patent Glazing & Roof Light ContractorsLonsdale are a specialist manufacturer with over 60 years experience of the design and fabrication of roof glazing, patent glazing, rooflights, roof lanterns and skylights.

You can be sure our systems will comply with latest building regulations for sloped glazing with regard to thermal performance, air-tightness and non-fragility.

Installation is via a national network of registered dealers. These companies vary in size and resources enabling us to introduce you to usually a choice of three companies best placed to offer you competitive prices combined with the required level of expertise for your client’s building.

Please contact us with brief details of your project, stating location, size and approximate value so you may take advantage of a prompt reply.

If you have a large project such as a rail station, school, hospital or retail park, we may be able to assist by minimising costs, thus maximising your profits and at the same time, helping you deliver best value for your client. Please contact our Sales Director richard.burgess@lonsdalemetal.co.uk for advice

"Lonsdale proved to be definitely the right choice, due to the system’s inherent flexibility " – Mr Roy Conway, AMEC Capital Projects
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