Kubu — aluminium windows and doors
Kubu is not a door manufacturer. It is a British smart-security system that lives inside the multi-point lock of a door or window and reports back to a mobile app whether the lock is actually engaged — not merely whether the door is shut. It is increasingly specified alongside aluminium entrance doors on new-build and refurbishment projects.
Product information is published directly by the manufacturer at Kubu's official site. In Stevenage and across Hertfordshire, 5EC holds authorised-supplier status for Kubu.
Articles on Kubu systems
Practical write-ups of the products specified most often in the UK.
Kubu: the smart lock sensor for aluminium doors, explained plainly
Kubu is a smart sensor built into the multi-point lock of a door or window — how it works and how it integrates with aluminium systems.
Read the article → 27 February 2026Fitting Kubu to existing aluminium doors: what you need to know first
A practical guide to retrofitting a Kubu smart sensor into an existing aluminium door or window.
Read the article → 21 March 2026Kubu and traditional alarms: complementary, not competing
Kubu smart lock sensors and traditional alarm systems answer different questions — how to think about them together.
Read the article →Other brands in the journal
Continue with the ranges we cover alongside Kubu.
Schüco
German engineering that sets the benchmark for the wider aluminium industry.
Cortizo
Spanish manufacturer with one of the largest extrusion operations in Europe.
Kobbe
Bespoke aluminium entrance doors, engineered to individual specification.
VELFAC
Danish composite windows and doors — aluminium outside, timber inside.
Rationel
Scandinavian precision in composite timber-aluminium windows and doors.