What to do When Your Door is Stuck/Jammed

As a locksmith, Lock Guy has come across many problem doors that have failed in some way and cannot be opened. Based on direct experience, this article explains how this can occur and offers some useful tips and suggestions about what to do about it.

The article focuses on external doors if you have access to both sides of the door.

The best approach is often to contact a reputable local locksmith if a door in your home has become stuck/jammed and cannot be opened. Whether you contact a locksmith, or want to try to resolve it yourself, it is always good to understand the issue first.

It is also a good idea to familiarise yourself with the types of locks you have.

Common Causes

In order to select the right technique to resolve the issue of the door that will not open, you need to identify the most likely issue.

For uPVC and composite doors

Key will not turn (or not turn enough) to unlock door – In this case there is likely to be a mechanical failure of the lock barrel or locking gearbox mechanism.

Handle will not press down or appears does not operate latch – This could be a problem with the handle, the spindle or the locking gearbox mechanism itself. Additionally it could be related to very hot conditions causing the components to swell hampering the smooth operation of the door handle.

Multi-point mechanism not retracting – If the lock appears to unlock, the handle moves down but it appears that the bolts are not retracting, then this means that the multi-point mechanism has probably failed somewhere.

Door is stiff/stuck against door frame – This is usually the case where the door has been a problem to open and close for a while. Doors can ‘drop’ over time depending on the use (and abuse) it may get or extreme changes in temperature that it is exposed to.

Handle has broken off – Excessive wear and tear coupled with a stiff locking mechanism can cause the handle to break if excessive force is used. Please also read my article on Multi-point locking mechanisms for further information about your multi-point locking mechanism.

For wooden doors

Nightlatch failed – These parts can seize up, especially if they are old and have not been well maintained.

Door is stiff/stuck against door frame – This can be especially common for wooden doors as the temperature and moisture can swell the wood.

Key will not turn (or not turn enough) to unlock door – In this case there is likely to be a mechanical failure of the rim cylinder or nightlatch.

The mortice lock will not unlock – A failed deadlock or sashlock may well be the issue.

Getting the door to open

Whatever the issue – the first step is always to try to get the door open!

For uPVC and composite doors

Issue	Possible Solution
Key will not turn (or not turn enough) to unlock door	First thing to try is to remove the barrel (euro cylinder). But as the door will not open, it will need to be destructively removed. You may need to call a locksmith for this.
Handle will not press down or appears not to operate the latch	Remove handles. Make sure spindle is engaged into the door locking mechanism. Get some mole grips (or other large pliers) and try to turn spindle. Removing the handles may reveal another hole to try the same method. Sometimes extreme heat can affect the locking mechanism in which case try to hose it down with cold water for several minutes.
Multi-point mechanism not retracting	Try to create a gap between the door and the door frame. If possible, adjust hinges to give maximum clearance. Use a long flat strong bar to lever open to reveal mechanism. Once a gap is created, try to hammer/force mechanism back – or use angle grinder to cut it free (last resort option).
Door is stiff/stuck against door frame	Use a long flat strong bar to lever open.
Handle has broken off	Remove handles. Make sure spindle is engaged into the door locking mechanism. Get mole grips (or other large pliers) and try to turn.

For wooden doors

Issue	Possible Solution
Nightlatch failed	Some cheaper/basic models have surface mounted screws that can just be taken out to remove the nightlatch. The latch might still have some movement – so force a thin flat implement against it to force it back. Cut off latch with angle grinder (last resort).
Door is stiff/stuck against door frame	If the door closed, then it can open. Use a mallet if you have to. Hit on to another piece of wood to prevent damage to the door and to spread the impact point.
Key will not turn (or not turn enough) to unlock door	The latch might still have some movement – so force a thin flat implement against it to force it back.
The mortice lock will not unlock	If the key will rotate 180 degrees, then leave it in that position and try to drag bolt back with thin implement. Otherwise, the lock will need to be drilled out. Contact a locksmith for this.

Rectifying the Issue

Only once the door is open can the issue be properly identified and resolved.

In the case of lock or locking mechanism failure, it is often recommended to replace the defective part with an equivalent new part. Your local hardware store might be able to advise. Screwfix also have a decent range. Although many of the best suppliers will supply only to trading locksmiths.

Euro cylinders are relatively easy to replace with only one connecting screw that needs to be removed.

Rim cylinders can only be accessed once you remove the nightlatch.

A nightlatch can be unscrewed and then normally a sliding and lifting action will remove it.

With regard to a Gearbox or multi-point mechanism, it can be difficult to identify the correct part, so make note of the manufacturer name, all relevant dimensions and how it operates.

A uPVC or composite door can normally be adjusted with an allen key at the hinges if it needs to be realigned. Or it might be necessary to move/adjust the keeps in the door frame to align with the locking points better.

A wooden door can be planed or sanded. You might need to remove the door for this and the bare edge will need to be treated to protect it against the elements.

Sometimes just applying generous amounts of a good and appropriate lubricant into the locks and locking mechanisms will solve the issue. Please also read my article on maintaining your locks.

Internal Doors

This articles covers external doors, however, if you do have an issue with an internal door getting stuck, then normally that is because of a defective tubular latch. In this case, try to force a flat flexible and strong piece of plastic in the gap to force the latch back.

Conclusion

Firstly, it is better to not get yourself in the situation where your door is jammed shut if it can be avoided. So, preventative measures are best, and you should service your locks and locking mechanisms regularly. Do not ignore problems as they will only get worse over time.

Think about the type of door you have. Composite and wooden doors tend to be very strong. UPVC doors are also strong, but they do have a degree of flexibility in them that can be used to your advantage.

This article offers only basic guidance and there could be an number of issues or combination of issues that are causing the problem.

If in doubt, contact your local reputable locksmith (like Lock Guy if you are based in Essex). A good locksmith will be able to resolve your problem without causing any lasting damage to your door.

I hope this article on What to do When Your Door is Stuck/Jammed has been useful to you.

If you want further advice on locks and other security products, then contact Lock Guy.

Lock Guy is an independent locksmith operating in Witham, Maldon and all the towns between Colchester and Chelmsford.

Got a question about a lock issue you may have? Why not have a look at the FAQ page or one of the helpful advice videos on the Media page.