How to Choose the Right Front Door Lock - Bradford Locksmith Guide

Walk into any hardware store and you'll be faced with dozens of lock options at wildly different price points. For most homeowners in Bradford, the choice comes down to: which lock is actually good enough to protect my family and satisfy my insurance company?

This guide cuts through the noise. Whether you have a UPVC door, a composite door, or a traditional timber door, we explain exactly what to look for and what to avoid.

First, Know Your Door Type

The type of lock you need depends entirely on the type of door you have:

• UPVC and composite doors use a euro cylinder lock inside a multipoint locking mechanism. The cylinder is the small barrel that your key goes into.
• Timber doors typically use a mortice deadlock fitted into the body of the door, often alongside a night latch for convenience.

For UPVC and Composite Doors: The Euro Cylinder

The single most important upgrade you can make to a UPVC or composite door is replacing the euro cylinder with a high-security anti-snap alternative. Here is what the ratings mean:

• TS007 1-Star: Basic security. Offered by the cylinder alone. Not recommended as a minimum.
• TS007 3-Star: The gold standard — requires the cylinder itself to achieve 3 stars independently. Resists snapping, picking, bumping, and drilling. This is what most insurers now require.
• Sold Secure Diamond (SS312): An alternative, independently tested standard. Products bearing this mark have passed equivalent rigorous attack tests.

When choosing a cylinder, also consider the size. Measure the distance from the centre of the fixing screw hole to each end of the barrel. A correctly sized cylinder should not protrude more than 3mm beyond your door furniture on either side.

For Timber Doors: The Mortice Deadlock

Timber doors should be fitted with a British Standard BS3621 mortice deadlock. This standard has been the benchmark for residential door security in the UK for decades and is required by the vast majority of home insurance policies. Key features of a BS3621 lock include:

• A 5-lever design for high key security
• A hardened steel bolt with anti-drill protection
• A minimum bolt throw of 20mm
• A hardened steel box keep in the door frame

In addition to the deadlock, a BS3621 compliant night latch with a deadlocking function (preventing the bolt from being pushed back) is strongly recommended on all main entrances.

What About Smart Locks?

Smart locks — including keypad, fingerprint, and app-controlled models — are growing in popularity across Bradford. They offer genuine convenience benefits, particularly for rental properties and households with children. However, they should always be used alongside, not instead of, a certified physical deadlock or cylinder. Many consumer-grade smart locks offer surprisingly poor resistance to physical attack.

Brand Matters

For cylinders, look for brands such as Yale Platinum, Ultion, Avocet ABS, and ERA Fortress — all of which independently achieve TS007 3-Star ratings. For mortice deadlocks, Yale, Chubb, and ERA produce BS3621 certified options widely recommended by locksmiths.

Not sure what locks you currently have? Keymark Locksmiths offer free lock security assessments across Bradford and surrounding BD postcode areas. Call us today to book yours.