How to Replace a Door Barrel Lock

HOW TO REPLACE A DOOR BARREL LOCK

Replacing a barrel lock (also called a euro cylinder) is a simple DIY task that improves your door’s security instantly.

🧰 TOOLS YOU’LL NEED

  • 🔑 Phillips screwdriver
  • ⚙️ Replacement barrel – Shop Cylinders

🔧 STEP-BY-STEP GUIDE

1️⃣ Remove the Handle and Fixing Screw

Unscrew the door handle and the long fixing screw holding the cylinder in place.

2️⃣ Turn the Key to Align the Cam

Insert your key, turn slightly, and slide the cylinder out.

3️⃣ Fit the New Barrel

Insert your new barrel, align the cam, and refit the fixing screw.

4️⃣ Refit the Handles

Screw handles back securely and test locking function.

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