Aperture Group is known for its marketing-leading brands including WarmCore, Calibre and Global.
Through internal developments and acquisitions, we have gradually built up the most competitive product offer available so we can offer our customers the very best the industry has to offer across a range of markets including window, door and conservatory system
Meet the next generation Aluminium Inline Patio Door
WarmCore is 25% more thermally efficient thanks to a unique, full-width thermal core
Aluminium Bi-folds, Residential and French doors
Secure, stylish and second to none, discover Craftsman timber doors from Calibre Doors.
A stylish range of high quality, low-maintenance GRP composite doors from Calibre Doors.
Sculptured, elegant and efficient - no wonder it's the homeowner’s choice
A comprehensive system perfect for both domestic and commercial applications
Our Evolve range of vertical sliding sash windows, bi-fold and patio doors are pre-fabricated to the highest standards.
Slim contemporary sight lines teamed with unbeatable thermal performance.
Celsius Solid Roof creates modern spaces with superior thermal performance
Global is the UK’s number one best-selling conservatory bar length roof system
K2 is a world-renowned brand leader, providing the best in roofs to Europe, Canada and the USA
K2 orangery systems are versatile solutions for any home
Portal frames designed to solve any structural challenge
With 200,000 sq.ft of glass production facilities across four UK sites, we have a 50,000 sealed unit weekly capacity
Purpose-designed Celsius Performance Glass for conservatory roof applications