Why Landlords and Letting Agents Should Consider Keyless Exit Locks

If you're a landlord or letting agent, the front door lock probably isn't something you think about often — until it causes a headache. A tenant loses their key and gets locked out at 11pm. A fire escape route turns out to need a key to open from the inside. An insurance assessor flags the lock as non-compliant. I see all three of these fairly regularly, and the fix is usually the same: swap the traditional keyed lock for a keyless exit lock.

Here's a quick rundown of what that means in practice, and why I'd recommend it across your properties.

What Is a Keyless Exit Lock?

A keyless exit lock allows anyone inside the property to open the door and leave without needing a key at all — usually via a thumbturn or lever. You still need a key to get in from outside, but escape is always immediate. This single feature solves a surprising number of problems for rental properties, from fire safety to everyday convenience.

There are three common ways to achieve this, and it's worth understanding the difference between them.

1. Nightlatches

A nightlatch (often called a Yale-type lock) sits on the surface of the door and has a spring-loaded latch that opens from inside with a simple turn or push of the handle — no key needed. They're inexpensive, quick to fit, and tenants instantly recognise how they work, which makes them a nice first step if you're upgrading an older property. The one thing to bear in mind is that a nightlatch on its own isn't a high-security lock, so I'd usually pair it with a separate deadlock for when the property's empty.

2. Euro Cylinder Thumbturns

Most UK rental properties, especially those with uPVC or composite doors, use a euro profile cylinder as the main lock. A euro cylinder thumbturn simply replaces the standard key-operated cylinder with one that has a key on the outside and a turnable knob on the inside. It fits the same multipoint locking mechanism the door already has, so nothing changes about how it locks — just how it's opened from inside. This is honestly one of the easiest upgrades I do, usually a straightforward cylinder swap rather than a full lock replacement.

3. Deadlock Thumbturns

For doors with a separate mortice deadlock (common on timber doors, and often fitted alongside a nightlatch), a deadlock thumbturn does the same job: key to lock and unlock from outside, turn to open from inside. Deadlocks are usually the "final" lock engaged at night, so it's worth giving them keyless operation too — there's not much point having a keyless nightlatch if the deadlock above it still needs a key to escape.

Why This Matters for Landlords and Agents

Fire safety and escape compliance. This is the big one. Fire safety guidance is increasingly clear that final exit doors should be openable without a key, so occupants are never fumbling for keys — or unable to find them — in an emergency. For HMOs in particular, this isn't just best practice; it can be a specific requirement.

Fewer lockouts, fewer 2am phone calls. A huge chunk of the emergency call-outs I get from rental properties are simple key-related lockouts. Keyless exit removes the "I locked myself out because I couldn't find my key on the way out" scenario entirely, since the key's only ever needed to get in.

Peace of mind for your tenants. Anyone with children, elderly relatives, or just someone unfamiliar with the property will appreciate knowing they can always get out quickly, day or night, without fumbling for keys in the dark.

A simple, low-hassle upgrade. These aren't full lock replacements in most cases. Euro cylinder and deadlock thumbturns are usually a like-for-like swap I can do in minutes per door, with barely any disruption to your tenants and no need to change any keys you already hold.

Getting It Right

The best setup really depends on the door and the property — an HMO with several exits needs a different approach to a single-let flat. A quick lock survey is usually enough to work out which doors would benefit most and whether a nightlatch, thumbturn cylinder, or thumbturn deadlock (or a mix) is the right call.

If you manage rental properties and want a hand reviewing your locks against fire safety best practice, get in touch — I'm happy to pop round and run through a straightforward check across your portfolio.