Warmcore Aluminium Bifolds

WarmCore Bifolding Window & Door System


True Innovation


Superior Thermal Performance


Hi-Tech Elegance

Warmcore handles

WarmCore aluminium windows and doors systems provide aluminium aesthetics as well as thermal performance with its innovative full width thermal core.

WarmCore folding sliding, French and residential door systems have been adopted by housebuilders and homeowners with equal enthusiasm and our newly introduced WarmCore aluminium window is built around the same full width thermal core concept.

At the heart of WarmCore products is a thermal core which significantly out-performs the polyamide thermal breaks commonly used to reduce the threat of cold bridging on aluminium windows and doors. The result is an innovative “warm aluminium” frame construction, carefully dimensioned to provide an optimised 70mm front-to-back overall sash frame depth while ensuring market-leading thermal performance thanks to the multi-chambered insulating core.

Warmer By Design

WarmCore has been designed from the ground up to offer market-leading thermal performance, and comfortably meets the requirements of Building Regulations – Part L. Traditional aluminium doors struggle to meet current legislation, forcing you to choose aluminium aesthetics and finish over thermal performance. WarmCore gives you both, with its innovative full width thermal core.

This unique composite construction creates the most thermally efficient folding sliding door in its class. This design philosophy has produced a folding sliding door that has exceptional thermal performance, helping keep fuel bills lower and heat in your home, while retaining the sleek and architectural look of aluminium.

Triple glazing – for ultimate thermal performance

Robustly designed to take the weight of triple glazed units as standard, choose this option for the ultimate thermal performance – at least 75% better than standard double glazed aluminium folding sliding doors. Opting for 44mm triple glazing rather than standard 28mm double glazing reduces the whole door U-Value rating from 1.4 to 1.0. Triple glazing is ideal for WarmCore doors installed in exposed locations.

Also see our uPVC Bi Folding doors