Ultion locks as standard. Retrofit options available. Insurance-backed guarantee.
Ensuring a secure product
Security is a key part of any new window or door, and at Radiance Doors we only use locks from reputable manufacturers. With over 50 years of experience, we understand what makes a dependable locking mechanism and have carefully selected options that deliver strong protection and long-term performance. Since opening, we have consistently installed high-quality, high-security systems, with Ultion cylinders commonly specified due to proven resistance against forced entry and lock snapping.
Over time, we have expanded our range to include trusted alternatives such as ABS, Yale, and other 3-star rated security cylinders, giving homeowners flexibility without compromising safety. Every lock we install is chosen with care, ensuring security works seamlessly alongside design and usability.
If you are exploring options and want to understand why choose Radiance Doors & Windows for your installation, our commitment to certified products, precise fitting, and long-term reassurance makes security a central part of the service we provide.
Why Ultion?
Ultion locks are one of the best choices in the industry and address one of the key weaknesses of the locking system, the cylinder. Even the best multi-point locks can be let down if the cylinder is ineffective. There are four fantastic reasons to make Ultion your number one choice:
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Hidden attack lock. A hidden firing pin in the core of the cylinder secures the central cam, when it detects a lock is being interfered with by a would-be intruder
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Unbeaten in every test thrown at it. The locks have the highest Kitemark star rating, has been tested by locksmiths with the Master Locksmith Association, and are Sold Secure Diamond accredited.
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Almost 300,000 key combinations. Utilising 11 pins (most locks only have 5 or 6), Ultion Locks have nearly tripled the number of possible key cut combinations.
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20-point drill protection. They are even protected against drill attacks, thanks to 20 hardened steel pins and plates with precise positioning.
Why ABS?
Update your existing doors
If you’re happy with your current doors, but want to enjoy improved security, our team will be more than happy to help. We can also retro-fit high-security cylinders to your existing doors (where compatible) giving instant, enhanced security. We can fit Yale, Ultion or ABS locks depending on what is most suitable for your door.
