UPVC & Composite Door Lock Repairs Dublin

In many cases, if your UPVC or composite door isn’t locking correctly, feels stiff, or needs to be lifted to close, we can get it working properly again.

We specialise in UPVC door lock repair, realignment, and multipoint lock servicing across Dublin.

As a result, most issues can be repaired on the spot, without replacing your full door.

Why UPVC & Composite Door Locks Fail

Modern UPVC, PVC and composite doors use a multipoint locking system that secures the door at several points. Over time, these mechanisms can lose alignment or wear down, causing:

• Difficulty lifting the handle
• Key not turning smoothly
• Door not closing unless pushed or lifted
• Locking points jamming or sticking
• Complete lock failure after years of strain

What We Repair

Additionally, we focus exclusively on the mechanical components and alignment of your door and multipoint lock, to restore smooth and secure operation.

• Full multipoint lock repairs and replacements
• Gearbox replacement (most common failure)
• Handle replacement (floppy or stiff handles)
• Cylinder upgrades (standard, anti-snap, and high-security)
• Door realignment to fix handle stiffness or locking issues
• Hinge adjustments to stop dragging or difficulty closing

UPVC vs PVC vs Composite – We Repair All Types

Often, many customers aren’t sure what type of door they have — and that’s completely normal.

For example, whether your door is UPVC, PVC, composite, or aluminium, if it has a multipoint locking system, we can repair it.

Common Signs You Need a Locksmith

Here’s an example: a composite door that is out of alignment and causing rubbing marks where the door hits the frame. As a result, this leads to excessive wear on the door hardware. Consequently, this can lead to failure of the uPVC or composite door lock, handles coming loose, and even the key breaking in the cylinder.

Similarly, another example is a uPVC door lever handle coming away from its backplate, causing issues with lock operation.

Other examples include:

• The door rubbing on the floor or knocking off the frame
• Wear/rubbing marks on the door or frame
• The handle needs force to lift
• The lever handle is loose, or coming away from the handle plate
• The key turns halfway and stops
• You need to push or pull the door to lock it
• The lock worked yesterday but suddenly failed today
• The door has been “getting worse” for months

Therefore, if you notice these early signs, a simple realignment or repair can prevent a full lock failure.

However, we do not repair structural damage to the door or frame, warped doors, or worn seals — but we can advise you on the correct trade if needed.

Why We Don’t Replace Entire Doors

Typically, 99% of UPVC and composite door lock problems come from wear in the gearbox, locking strip, cylinder, or misalignment.

Because of this, these are specialist locksmith tasks — not door replacement jobs.

Additionally, we keep a wide range of multipoint lock parts on hand, allowing most repairs to be completed during a single visit.

Our Approach

• We diagnose the issue quickly and explain it clearly
• We repair the mechanism whenever possible
• We only replace parts that are genuinely worn or broken
• No unnecessary door replacements

Need Your UPVC Door Lock Repaired?

Finally, if your door isn’t locking properly — or feels like it might fail soon — contact us today.

Additionally, we offer fast, reliable UPVC door lock repair anywhere in Dublin.

Upgrade Your Door Lock Key Cylinders

Generally, most doors come with standard cylinders that have a very basic level of security. At A. Houlihan Locksmiths, we can upgrade your cylinders to high security cylinders that have a number of features built in to hinder an intruder using common bypass tools.

Want To Understand How Your Lock Works?

Learn more here: What is a Multipoint Lock?

Areas We Cover

Finally, we provide UPVC door lock repair across Dublin City, North Dublin, South Dublin, and surrounding suburbs.