The Most Common Lock Problems I Fix in Bournemouth Homes

As a local locksmith working across Bournemouth, Poole and Christchurch, I see the same lock and door issues come up again and again. Most of them start small — a stiff handle, a key that doesn’t turn smoothly, a door that needs a little “extra push” to close — and then suddenly fail at the worst possible moment.

Here are the most common problems I’m called out to fix, and what usually causes them.

1. Stiff or Grinding uPVC Door Handles

This is by far the number one issue in Bournemouth homes.

Typical signs:

• Handle feels heavy or stiff

• You need to lift the handle higher than normal

• Key becomes harder to turn

What’s happening:   The door has dropped slightly or the keeps are out of alignment. If left too long, the gearbox can fail — which turns a simple adjustment into a full mechanism replacement.

2. Failed uPVC Gearboxes

When a gearbox goes, it usually happens suddenly.

Common symptoms:

• Handle spins freely

• Door won’t lock or unlock

• Key turns but nothing engages

Why it fails:   Wear and tear, misalignment, or forcing the handle when the mechanism is under strain. Bournemouth’s coastal air doesn’t help — salt can accelerate internal wear.

upvc gear box

3. Worn or Faulty Euro Cylinders

Euro cylinders are the most common lock type on modern doors.

Typical problems:

• Key won’t go in smoothly

• Key turns but doesn’t operate the lock

• Cylinder spins in the door

• Snapped key

Causes:   Cheap cylinders, age, or internal components wearing out. I often replace these with British Standard cylinders for better security and reliability.

4. Dropped Composite Doors

Composite doors are heavy, and over time the hinges can move.

Signs:

• Door rubs on the frame

• You have to “lift” the door to close it

• Locking becomes difficult

Risk:   If ignored, the multi‑point mechanism can fail — a much more expensive repair.

5. Faulty 5‑Lever Mortice Locks

Common on wooden doors across Bournemouth’s older housing stock.

Typical issues:

• Key becomes stiff

• Bolt won’t throw fully

• Internal levers wear out

• Lock jams in the locked position

Cause:   Age, lack of lubrication, or worn levers. Many older locks also don’t meet British Standard, so upgrades are often recommended.

British standard 5 lever mortice sash lock

6. Snapped or Bent Keys

This happens more often than people think.

Why:

• Cheap keys cut poorly

• Forcing a stiff lock

• Worn cylinders

• Cold weather making metal brittle

I can usually extract the broken piece without damaging the lock.

7. Misaligned Door Frames After Weather Changes

Bournemouth’s mix of coastal air, humidity and temperature swings causes frames to expand and contract.

Symptoms:

• Lock works fine in the morning but not at night

• Door catches on the frame

• Handle becomes stiff intermittently

A simple adjustment often solves it.

If you’re noticing any of these signs…

Most lock problems start small and get worse over time. A quick adjustment or repair now can prevent a full lockout later — and save you money.

I cover Bournemouth, Winton, Charminster, Moordown, Ensbury Park, Kinson, Southbourne, Boscombe, Westbourne and nearby areas. If your door or lock isn’t behaving as it should, I’m always happy to take a look.

For more information www.williamslocksmiths.co.uk