Your doors and locks are your home's first line of defence, but they're often overlooked until something goes wrong. A simple security check a few times a year can help identify small problems before they turn into expensive repairs or leave your home vulnerable.

The good news is that most checks only take a few minutes.

Check Your Doors Every Few Months

As a general guide, inspect your external doors every three to six months.

You should also carry out a check:

• Before going on holiday
• After severe weather
• After moving into a new home
• If you've noticed any changes in how the door operates
• Following an attempted break-in

Regular inspections can help spot wear before it leads to a lockout.

Test the Lock

Your lock should operate smoothly without excessive force.

Watch for:

• A stiff key
• Difficulty turning the key
• Rough operation
• Keys sticking in the cylinder

If the lock feels different than usual, it's worth investigating before it gets worse.

Check the Handle

Lift and lower the handle several times.

It should:

• Return smoothly
• Feel firm
• Have no excessive movement
• Lift without resistance

A loose or drooping handle may indicate worn components or extra strain on the locking mechanism.

Inspect the Door Alignment

Look around the edge of the door.

Signs of poor alignment include:

• Uneven gaps
• The door catching the frame
• Scrape marks
• Having to push or pull the door to lock it

A dropped door is one of the most common causes of premature multipoint lock failure.

Check All Locking Points

If you have a multipoint locking system, make sure:

• Hooks extend fully
• Rollers move freely
• Deadbolts engage correctly
• Everything retracts smoothly when unlocked

Any stiffness or resistance should be investigated.

Examine the Lock Cylinder

Look closely at the cylinder.

Check that it:

• Isn't loose
• Doesn't protrude excessively beyond the handle
• Operates smoothly
• Shows no signs of damage

If your cylinder is older, it may be worth upgrading to a modern snap-resistant model.

Inspect Hinges and Fixings

Loose hinges or fixings can affect door alignment.

Check for:

• Loose screws
• Worn hinges
• Signs of movement
• Rust or corrosion

Small adjustments now can prevent bigger problems later.

Don't Forget Rear Doors

Many homeowners concentrate on the front door and overlook:

• Back doors
• French doors
• Patio doors
• Conservatory doors
• Garage access doors

Every external door should be checked regularly.

Test Your Spare Keys

If you keep spare keys, make sure they still work correctly.

Avoid using:

• Bent keys
• Worn keys
• Poorly cut copies

A damaged key can increase wear inside the lock and may eventually snap.

Deal With Problems Early

If you notice:

• A stiff lock
• A difficult handle
• A dropped door
• Strange noises
• Locking points sticking

don't wait for the door to fail completely.

Most minor faults can be repaired quickly and are usually far less expensive than dealing with an emergency lockout.

A Few Minutes Can Prevent a Costly Repair

Checking your door security every few months is a simple habit that can improve your home's security and extend the life of your locks. Spotting problems early allows them to be repaired before they develop into major faults, helping you avoid unexpected lock failures and unnecessary expense.