Smart Locks a Locksmith Recommends | Honest Picks From Someone Who Fits Them

Customers ask me about smart locks every single week. Usually it's someone in Maidenbower or Pound Hill who's seen a slick advert, bought a shiny device online, and is now standing on their doorstep wondering why the deadbolt won't engage. Or they've had a landlord in Three Bridges email asking whether a smart lock counts as a proper lock for insurance purposes. The honest answer is: some do, most don't, and the difference matters a lot more than the app.

I'm going to give you my actual recommendation. Not a round-up of everything on the market. Not a sponsored list. Just what I'd fit on my own front door, what I fit for customers in the RH10 and RH11 postcodes, and why a lot of the popular ones are glorified toys.

The Two Things That Actually Decide It

Before you look at any product, you need to answer two questions.

First: do you have a multipoint lock? Almost every door fitted in Crawley since the mid-nineties does. That's the mechanism that shoots bolts up and down the door frame when you lift the handle and turn the key. Yale, GU, Fuhr, Maco, Roto, Winkhaus, Mila, the brands vary but the principle is the same. A huge number of smart locks, particularly the American retrofit cylinder products, physically cannot operate a multipoint. They can only turn a single-bolt deadlock. If you fit one of those on a multipoint door, you now have a lock that engages one bolt out of five. That's not a smart lock. That's a very expensive way to make your door less secure.

Second: what does your insurer require? Most household policies in the UK require the external door lock to meet BS3621 or BS8621 for deadlocks, or PAS24 for the door and frame as a combined unit. Some will accept SS312 Diamond-rated cylinders. If your smart lock, or the cylinder it replaces, doesn't meet that standard, you may find a claim refused after a break-in. Not a risk worth taking for the sake of a cool app.

Get those two answers right and the rest is much easier.

Retrofit Smart Cylinders: The Sensible Route for Most Homes

For the majority of Crawley homeowners, a retrofit smart cylinder is the right answer. You keep your existing door, your existing handles, your existing multipoint mechanism. You swap only the euro cylinder. The door still works exactly as before, except you can also unlock it via an app, a key fob, a code, or a fingerprint depending on the model.

The one I'd actually fit at home is the Ultion Smart. It's built on the Ultion cylinder platform, which already holds TS007 3-star and Sold Secure Diamond ratings. The smart module clips on, works with Yale Conexis via Bluetooth, and when the battery dies or the app fails, you can still use a physical key. That last point is non-negotiable for me. Any smart lock that removes the physical key override is a liability. You're one flat battery from a lockout.

Another solid option is the Yale Conexis L2. It's a full smart lock rather than a retrofit cylinder, but it's designed with UK multipoint doors in mind. It operates as a thumbturn on the inside, works with the Yale app over Bluetooth and Z-Wave, and the key override is built in. Yale have clearly done the engineering for the UK market. I've fitted a few of these in Ifield and Broadfield and had no comebacks.

The Avocet ABS Smart is worth a mention too, especially if you're already running ABS cylinders. It meets TS007 3-star, the Smart module fits cleanly, and if you're a landlord managing a few properties in Gossops Green or Northgate it plays nicely with access schedules so you can issue and revoke digital keys without touching the lock.

The Ones I'd Leave on the Shelf

I'll name them plainly.

August Smart Lock and similar American deadbolt products. Designed for a US single-bolt deadlock. They physically cannot operate a multipoint door properly. I've been called out to three properties in the last year where the owner had fitted one of these, thought the door was locked, and it wasn't. Two of them were in Tilgate. The app said locked. The door wasn't. That's a serious safety failure.

Nuki Smart Lock (standard model). Smart cylinder, nice app, decent battery life. The problem is the standard Nuki does not hold a TS007 3-star rating. Some insurers won't accept it as a qualifying lock. Worth checking your policy wording before you buy.

Any brand you've never heard of on a major e-commerce site for under £60. I've opened most of them with a tension wrench in under a minute. The electronics are the feature. The security is an afterthought.

How They Compare

Prices include a standard fitting in Crawley. If the door needs a frame repair or the existing cylinder is seized, add time and parts.

What About Smart Locks for Landlords?

If you're renting out a property in Crawley, smart locks can genuinely reduce hassle. No more cut keys, no more lockouts at 11pm because a tenant lost theirs, easier handovers between tenancies. The Avocet ABS Smart and the Yale Conexis L2 both allow you to manage access codes remotely.

But you need to check two things before you fit one. Your tenancy agreement needs to allow you to change the lock type without the tenant's consent, and your landlord insurance policy needs to confirm the specific lock meets their requirements. Some policies are explicit about BS3621. A quick phone call to your insurer before you buy saves a lot of grief later.

My Actual Recommendation

For a homeowner on a standard uPVC or composite door in Crawley: fit the Ultion Smart. It's the path of least resistance. Your door works normally, your insurer is happy, you get the app convenience, and if the technology fails you still have a TS007 3-star cylinder and a key. That combination covers almost every scenario I can imagine short of the entire door being kicked in, at which point the lock was never the weak point anyway.

If you want the full smart experience with app, fob, code, and biometric options, step up to the Yale Conexis L2. More expensive, but it's been engineered for UK doors rather than adapted from a US product.

Switch that recommendation only if you're a landlord managing multiple properties. In that case, the Avocet ABS Smart's key management features are worth the slightly smaller feature set.

If you're in Crawley, Horley, Haywards Heath, Burgess Hill, East Grinstead or anywhere else in the RH postcodes and you want one of these fitted properly or just want to talk through what'll work on your specific door, Rapid Response covers the area and we carry the most common cylinders on the van. Average arrival under 30 minutes for lockouts, same-day appointments for upgrades, and I'll tell you the price before I start. No surprises.