To keep your lock working reliably for as long as possible, it needs some basic care. Here's a simple overview of what to do – and what to avoid.
What to do:
Lubricate once or twice a year with a suitable product.
Use a clean and undamaged key – dirt or a bent key can damage the lock.
Protect the lock from moisture and dirt, especially on exterior doors (a cover is recommended).
After lubrication, turn the key several times to distribute the lubricant throughout the mechanism.
Pay attention to changes – if the key grinds or the lock behaves oddly, address it early.
What not to do:
Don’t use regular WD-40 or general oils – they can gum up the lock.
Don’t force the key if it won’t turn – it might break.
Don’t insert a dirty key – it brings dirt inside.
Don’t lubricate too often or excessively – over-lubrication can be harmful.
Mortise Lock Maintenance
The mortise lock is a mechanical component that can last many years with proper maintenance. Just a few simple steps can extend its lifespan and ensure smooth operation.
What to do:
Lubricate once or twice a year with an appropriate metal lubricant.
Lubricate the latch and bolt – the parts that slide into the door frame.
Keep the door area clean to prevent dust or debris from entering the lock.
Check that all screws are tight – loose parts can affect functionality.
Lock and unlock several times after lubrication to distribute the product.
What not to do:
Don’t use thick lubricants – they clog the mechanism.
Don’t over-soak the lock in lubricant – a light spray on moving parts is enough.
Don’t leave a rusty or sticking lock untreated – the longer you wait, the worse it gets.
Don’t insert screwdrivers or other tools into the lock if it’s jammed – you risk damaging it.
Multipoint Lock Maintenance
Multipoint locks secure the door at several points simultaneously. To keep them working correctly, occasional cleaning and lubrication are essential. It’s simple – just a few minutes and the right products.
What to do:
Lubricate all moving parts of the strip (latches, hooks, bolts, latch bolt) at least once a year.
Use a suitable lubricant – ideally a silicone or Teflon spray (e.g., WD-40 Specialist Dry Lube).
Check the entire strip for cleanliness – dust, cobwebs, or old lubricant can reduce functionality.
After applying the lubricant, lock/unlock the mechanism several times to spread it thoroughly.
Check the screws holding the strip or covers – loose ones may cause malfunctions.
What not to do:
Don’t use thick oils or grease – they trap dust and cause clogging.
Don’t leave the lock dry or rusty – it could jam and damage the gears.
Don’t force latches/hooks if they stick – the mechanism may bend or break.
Don’t slam the door if the lock isn't fully retracted – the strip may deform.
Multipoint locks are an excellent security feature, but they need a little care. If they stick or won’t lock properly, it’s better to call a professional.
