Customer Service
Customer Service

LocksOnline has been trading for over 20 years!
Multipoint Gearboxes & Overnight Locks

Multipoint Gearboxes & Overnight Locks

If the handles are drooping on your front door, or the lift-locking mechanism is becoming faulty or unreliable, you may have a problem with your centre gearbox, but don't worry!  You might not have to replace the whole thing!

On multipoint locks, all of the locking points on the metal strip down the door are actioned by the central locking mechanism known as the gearbox.  This is where your handles and cylinder are situated on the door, and allows you to control all of these locking bolts or hooks from the one location rather than having to control them all individually. 

Whilst this is a fantastically convenient way to effectively lock all the way up the door rather than just at the centre, it does mean the centre gearbox is having to work much harder to mechanically drive and withdraw all those locking points, especially if the door is fitted tightly against the seals (which they often are).  Because of this, it may be that you find your handles start to droop, or the gearbox mechanism begins to slip when lifting the handles to engage the lock.

At this point (even just the droopy handles) you know the gearbox is nearing the end of its functional life and either the lock or the gearbox should be replaced immediately.  If you take the lock out of the door, you'll be able to see if you are able to remove the gearbox or not - some are riveted onto the locking strip, others are screwed on. 

If you can see the gearbox is riveted on, then you cannot replace the gearbox - even if you are capable of stripping these rivets and own a suitable riveting gun to re-fit the gearbox, the manufacturers who choose to rivet the gearbox on, do not offer replacement gearboxes so it would be a case of replacing the full multipoint lock. This may be more expensive than a gearbox, but it's not necessarily a bad thing to be renewing all of the locking points, as old worn locking points could be bad news for a new gearbox anyway!

If you see that the gearbox is screwed on, then there's a good chance you can replace that gearbox.  At this point you should inspect the full locking strip for signs of wear, damage, or corrosion.  You should also check all of the hooks / bolts / roller cams along the locking strip to identify if they look to be functioning properly.  If you think the whole lock is looking tired or there are signs of wear or damage, then you should consider replacing the whole lock.  But if everything looks fine except for the gearbox malfunctioning, then chances are you can simply replace the gearbox and save yourself some unnecessary spending. 


Multipoint Lock Gearboxes

Multipoint Lock Gearboxes

These UPVC Gearboxes are suitable for replacing  the central mechanism on your lock when only the central mechanism on your lock is faulty. Most of the time with UPVC locks however the whole lock..

  View Range »

Sliding Door Multipoint Gearboxes

Sliding Door Multipoint Gearboxes

These multipoint lock gearboxes are specifically for Sliding uPVC Patio Doors. The gearbox is the locking mechanism which does all of the work of the lock, and takes most of the abuse the lock receiv..

  View Range »

Over Night uPVC Locks

Over Night uPVC Locks

When you need temporary security for your uPVC lock, for example when you are waiting for replacements etc, these locks are ideal...

  View Range »

Multipoint Door Centre Case Lock

Multipoint Door Centre Case Lock

UPVC Door Centre Case Lock. These are locking systems that bolt the door into the frame in the central area of the door (usually near the handle), they are also suitable for use on wooden doors. ..

  View Range »

Some of Our Customers..


Recently Viewed Products

The LocksOnline Team


Darrel

Head of the tech team, and locksmith of 25+ years


Eve

Specialises in Ironmongery & Door Furnishing


Lesley

Deals with Sales on the .co.uk website


Nicola

Deals with Sales on the .com website


Ann

Ensures day-to-day logistics run smoothly


Bryn

Keeps our workshop running smoothly


Jack

Our web developer and content manager

Close the chat box


We will phone you - Request a call back