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22 Dec 2022



Given the new building regulations and a drive for better energy efficiency in patio doors, the Warmcore solution offers double and triple glazing options within a system that also boasts a number of premium performance features.

With a U-value of 1.4 W/(m2K) double glazed and 1.0 W/(m2K) triple glazed, Warmcore is a product platform for the domestic and commercial sectors. Available in 2, 3 and 4 pane variants it’s also a system with complete design flexibility and the option of both single colour or dual-colour options and there’s also a thermally broken low threshold available.

Bespoke hardware features throughout the Warmcore patio door with self-levelling rollers running on a precision engineered track to give long-term, ultrasmooth and reliable performance. These wheels have also been tested to 50,000 cycles, providing further proof of longevity.

There is also a unique custom designed ‘lift-to-lock’ handle which is unique to the Warmcore patio door. This innovative handle operates the bi-directional locks located at the top and bottom of the door and feature ‘claws’ helping to make Warmcore patios incredibly secure at the interlock, typically a security weak point in standard PVCu patio doors. The Warmcore patio door also carries PAS24, an important standard under the forthcoming revisions to Part Q of the building regulations.

The Warmcore patio door also incorporates soft close technology, also known as a safety brake, as an optional upgrade which helps prevent trapped fingers and unintentional slamming, particularly useful when children are around. Carefully engineered, these built-in safety brakes guarantee soft, dampened operation, helping prevent misuse.

Phil Brown, research and development manager at Kömmerling commented: ‘The Warmcore patio door is a wonderful piece of product engineering and is available as a finished product and also as part of an integrated bar length system including casement, flush and tilt and turn windows, along with an impressive bi-folding door. With consumers looking towards better performing products and those rich in design features, there’s never been a better time in which to look at Warmcore.’

For further information please visit, e-mail or phone 01623 579200. You can also follow them on social media platforms including Twitter @profineuk.