Established in Willenhall in 1840, UNION is one of the most trusted heritage names in British lockmaking. This collection of UNION cylinder locks offers reliable, precision-engineered security solutions for both domestic and commercial doors.
Our versatile range includes a variety of profiles and configurations to suit your specific installation needs:
- Euro Cylinders: Available in Double Euro, Key & Turn, and Half Euro formats for standard modern doors.
- Oval Cylinders: Featuring Double Oval, Key & Turn, and Half Oval options, including cylinders designed to suit traditional oval profile nightlatches.
- Specialist Options: Includes threaded Screw-In cylinders and high-quality cylinder guard accessories to enhance your physical security.
Whether you are replacing an existing lock or upgrading your door hardware, UNION's time-tested engineering ensures dependable performance and peace of mind.
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Brand Connections
Union
UNION is one of the big heritage names in British-designed locks and door hardware, with roots going back to 1840 in Willenhall (aka the Black Country’s lockmaking mothership). What started as a family business grew into a widely specified brand for everything that “goes on a door,” and UNION still leans hard into that made-for-the-trade, won’t-let-you-down identity.
Today, UNION sits inside ASSA ABLOY Opening Solutions UK & Ireland, and the brand acts like a hub for a wider family of door-hardware ranges. In recent years, brands like Exidor (panic/exit hardware), plus Dale Hardware and Excel Architectural Hardware, were brought into the broader “UNION family” after ASSA ABLOY acquisitions. It’s basically the Avengers, but instead of saving the universe they just make sure fire exits actually work at 3am.
What UNION is known for:
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A huge spread of locks and cylinders (mortice locks, euro cylinders, padlocks, etc.)
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The broader architectural hardware ecosystem: door controls, exit hardware, hinges, handles, accessories, and spec/support tooling aimed at installers and ironmongers
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A strong UK trade presence and long distributor relationships (Aldridge even called out a 60-year partnership publicly).
Cylinder Locks
Our comprehensive range of precision-engineered cylinder locks provides the core security for a wide variety of domestic and commercial doors. Whether you require standard Euro cylinders - including high-security Double Euro and convenient Key & Turn Euro options - or traditional UK Oval profiles, our selection covers all installation requirements. We stock everything from versatile Rim cylinders for nightlatches and threaded Screw-In cylinders for aluminium doors, to specialist Scandinavian Oval and Banham cylinders. With options ranging from single-sided half cylinders for garages to premium Evva systems and essential installation accessories, you can easily find the perfect replacement cylinder to upgrade your home or business security. View all Cylinder Locks products
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Locks > Cylinder Locks > Half Oval (2)
Locks > Cylinder Locks > Key & Turn Euro (1)
Locks > Cylinder Locks > Key & Turn Oval (1)
Locks > Cylinder Locks > Screw In (1)
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