By using a combination of thermally insulated glass and Pilkington Optiwhite™, a wide range of highly efficient thermal glass double glazed units has been developed which can be used in any type of window frame and buildings of any age for domestic applications.

Pilkington K Glass™ is the original hard coated, pyrolytic low-emissivity coated thermal glass which became the most well-known and trusted brand by householders.

Pilkington K Glass™ is the UK’s leading thermal glass brand. Established for over 30 years and easily stocked, processed and installed, it has become the trusted solution for meeting Building Regulations concerning energy efficiency.

From new homes to older traditional buildings, Pilkington energiKare™ Triple delivers the best possible energy efficiency surpassing the best performing double glazed Insulating Glass Units (IGUs).

** g-value depends on which thermal insulation glass is selected as inner pane (all based on 4 mm thickness) For higher g-values please refer to our Thermal Insulation glass product range

Our updated Pilkington OptiView™ Range provides the best anti-reflection performance available in glass while allowing additional features like security and thermal insulation.

Thermal Insulation Improves the energy efficiency of domestic or commercial buildings whilst enabling the extensive use of glass and the benefit of passive solar gain.

Pilkington manufactures a range of low emissivity glass for thermal insulation that can help windows and doors to achieve low U-values. The 2021 editions of Approved Document L Volumes 1 and 2 can be downloaded from here.

Which glass can reduce heat loss in winter? We offer a range of products which can provide thermal insulation to reduce heat loss in winter: ... Use our online Supplier Finder to find your nearest supplier of Pilkington UK glass. Was this helpful?

Pilkington energiKare™ is the name given to our range of double and triple glazing used to improve the thermal efficiency of homes. It reduces the amount of heat lost through your windows and can also allow more heat energy from the sun in through the glass.