Handyman Question

My front door locks and unlocks from outside,but inside it locks but will not unlock?

Can anyone help me at all? It all works from the outside, just not on the inside? Any ideas?

4 Answers

Best Answer

99% of the time it's the euro cylinder. If it works one side but not the other it's not the key.
Just replace the cylinder. Remove and replace with correct size of previous one.
Don't start filing keys or it won't work in either side. And wd40 won't fix your problem either.
Leigh's locks

Answered 2nd Jul 2016

Leigh's Locks

Member since 25 Apr 2016


It's probably the key is worn,try another key.If that doesn't work if its a dead lock it could be the levers that are worn or some debris in the lock.Try giving it a spray with wd40.

Hope this helps


Answered 6th Sep 2011

STM & Daughters

Member since 27 Jun 2008

if its a upvc door with a euro cylinder probably the cylinder or the key is worn,
post the job on this website and get some quotes

domestic maintenance services

Answered 6th Sep 2011

domestic maintenance services

Member since 25 Aug 2011

try WD 40 on it first. But if this happens with more than one Key its the lock, if another key works ok look at both keys if the one that works is smaller in anyway file the bad key to make it the same size,
sometimes if you move the key in or out slightly you can often find a way of making them work.

Answered 9th Sep 2011


Member since 9 Oct 2008

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