About Slenderpane

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Slenderpane double-glazed units are very unusual. Manufactured to order for trade customers, handmade in Haddenham, Buckinghamshire and incorporating the latest technology including black, white or grey, warm edge’ super spacers. As a result when they are glazed into windows or doors, they visually are virtually impossible to distinguish from single-glazed units, but produce much lower heat loss values that comply with current building regulations.

Slenderpane established 2011When refurbishing sash or casement windows the aim is usually to retain the elegant appearance of single-glazing with while enhancing thermal and sound insulation.

Slenderpane provides the ideal solution. Its life began because Herald Joinery Slenderpane’s sister company which was set up in 2006 required the best quality in slim glass units when buying in their glazing……………….. hence the birth of Slenderpane in 2011.

BSI Certification

Slenderpane insulated glass units meet BSI standard BS EN 1279-3:2002. Please view the attached certificates for the Insulated Glass Units and Gas Specification.

Slenderpane Brochure

Please download our brochure.Brochure1