If you live in the UK, there is a very high chance your front door is made of white uPVC or modern composite material. And if you have looked for a smart lock, you have probably hit a brick wall.
Most "Best Smart Lock" reviews are written for the US market. They rave about "Deadbolts" that simply do not exist on British homes. Here in the UK, we use Multipoint Locking Systems, those complex strips of hooks, rollers, and bolts that run the entire length of the door.
The problem? Most smart locks can't handle them. They don't understand that you need to lift the handle to lock the door.
If you have been told "you can't put a smart lock on that door," this guide is for you. Here is why uPVC doors are different, and how the WME DL2 was engineered specifically to solve the British multipoint problem.
The "Lift-to-Lock" Problem
Walk up to your front door. To lock it, you probably have to pull the handle up first, and then turn the key.
This action engages the vertical hooks that seal the door tight against the weather.
- The Issue: Most generic smart locks are designed to just "turn the key." If you haven't lifted the handle first, the hooks aren't engaged, and the key cannot turn. A standard smart lock will try to force it, grind its gears, and fail.
- The Result: You end up with a "smart" lock that you still have to manually wrestle with, defeating the point of going keyless.
The Solution: WME DL2 Smart Lock
Unlike US-centric brands, the WME DL2 is designed with the UK architecture in mind. It acknowledges the "Lift-to-Lock" ritual rather than fighting against it.
How It Works on uPVC
The WME DL2 replaces your existing door handles with a smart, weather-resistant keypad handle set.
- To Lock: You exit the house, the DL2 detects this allows the lock to secure.
- To Unlock: You scan your fingerprint, enter your PIN, or use the app.
It upgrades your door, not just the keyhole. This means you keep your secure multipoint locking system intact, you just lose the need for the physical key.
Compatibility Checklist: Will the DL2 Fit My Door?
Before you buy, grab a tape measure. uPVC doors are standardised, but there are two key measurements to check to ensure the WME DL2 is a direct swap.
1. The "PZ" Measurement (Critical!)
This is the distance from the centre of the handle spindle (the square hole) to the centre of the keyhole (the round part of the cylinder).
- Standard UK uPVC: 92mm (This is the most common).
- The DL2 Fit: The DL2 is designed to work with standard Euro-profile cylinder cutouts found on virtually all uPVC doors.
2. Door Thickness
uPVC doors vary in thickness depending on their insulation.
- DL2 Range: The WME DL2 fits doors between 35mm and 55mm thick. This covers almost every standard domestic uPVC and composite door installed in the UK over the last 20 years.
3. The "Screw Centres"
Since the DL2 involves fitting a new front and back panel, you need to ensure it covers your existing screw holes.
DL2 Dimensions:
- Front Panel: 172mm (Height) x 38mm (Width)
- Back Panel: 200mm (Height) x 38mm (Width)
Tip: If your existing handle is much longer than 200mm, you may need a "scar plate" to cover old screw holes, or simply fill and paint them if you have a composite door.
Why Choose the DL2 Over a "Key Turner"?
You might have seen gadgets like the Nuki or Yale Linus that stick onto the inside of your door and turn the key for you. While clever, they have downsides on uPVC doors:
- The Friction Issue: uPVC doors warp in the heat. Sometimes you really have to lift that handle hard to get the key to turn. Battery-powered "key turners" often struggle with this resistance and burn through batteries.
- The Aesthetics: They look like a bulky box stuck on your door.
- The DL2 Advantage: Because the DL2 is a complete handle replacement made of Aluminum Alloy, it is physically bolted through the door. It is stronger, sleeker, and feels like a native part of your home, not a gadget stuck on with tape.
Key Features of the WME DL2
- Weather Ready: Just like the DL1, the DL2 is built to handle British rain.
- Multiple Entry Methods: Use a PIN code, RFID card, or the mechanical backup key.
- Battery Life: Runs on 4x AA batteries. Since you provide the force to lift the handle (the motor just engages the clutch), the battery life is excellent, often exceeding 12 months.
Don't Change Your Door, Upgrade It.
You do not need to replace your secure uPVC door to get smart features. You just need a lock that speaks "Multipoint."
The WME DL2 bridges the gap between modern smart home tech and traditional British security standards. It keeps your multi-point hooks for security but gives you the freedom of keyless entry.