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Don’t Call a Locksmith Yet! How to Swap Out Your UPVC Door Lock

Due to their durability, weather resistance, and security, UPVC (unplasticized polyvinyl chloride) doors are a common choice for exterior doors. Nevertheless, UPVC door latches can deteriorate over time. Rather than employing a locksmith, you can save money by replacing the lock yourself. This guide will instruct you on how to install a new lock on a UPVC door.

Material Required

Innovative multipoint security for UPVC doors
Set of screwdrivers
Scale of measurement
Sandpaper (recommended) Pencil
Tape for masking (optional)

Remove the Previous Lock
Remove the interior handleset and exterior key cylinder to begin. This will reveal the screws securing the previous multipoint lock. Remove the fasteners with a screwdriver and carefully pull the lock body out of the door. Avoid causing damage to the UPVC door frame.

Step 2: Expand the Hole If Necessary, test-fit the new lock into the door’s frame. UPVC doors are designed to accommodate standard-sized locks; however, if the new lock is marginally larger, the cavity may need to be enlarged. Wrap sandpaper around a block of wood and sand out the cavity with gentle pressure. Work slowly and frequently inspect the fit until the new lock slides into place.

Mark the New Screw Holes in Step 3
Mark with a pencil where the new screw openings are on the new lock by aligning it in the cavity. Remove the lock and pre-drill these holes into the UPVC door frame using a drill. Move carefully to prevent the door frame from cracking.

Step Four: Install the New Lock
Align the screw openings and insert the new lock into the cavity. If necessary, use masking tape to secure the lock in place. Screw the screws firmly into the pre-drilled openings to secure the lock body. Avoid overtightening.

Install the cylinder and handleset again
Insert the new key cylinder into the lock’s exterior. It should fit perfectly. The interior handleset is then reinstalled by sliding it onto the spindle and securing it with the set screw. Verify that the handle rotations operate the lock cam appropriately.

Step Six: Examine the New Lock
After installing the lock, try it thoroughly. Using the key and interior handle, secure and unlock the door on both sides multiple times. Ensure that the securing points engage and retract without difficulty. The door should operate exactly as it did when the original lock was first installed.

DIY UPVC Lock Installation Instructions

Bring the old lock to the supply store when purchasing a UPVC door lock replacement to ensure the same fit.
Before installing new screws in existing screw holes, they must be thoroughly cleaned.
Periodically lubricate the interior mechanisms of the lock with graphite powder to maintain the lock’s seamless operation.
Harmonisation is crucial. When fastener holes are misaligned, oversized holes can compromise security.
Use pre-drilled screw holes and a screwdriver with a torque-limiting clutch to prevent splitting.
Observe online tutorials for visual guidance if you become trapped while replacing locks.

Changing worn-out locks on UPVC doors is a simple do-it-yourself undertaking. With the proper equipment and planning, you can avoid the expense of hiring a locksmith. Simply avoid cracking or bending the UPVC frame while installing the new lock body and fittings. After a thorough operation test, your UPVC door will once again provide dependable security.