3 hours ago Sandy asked ... Replace vertical gear on Singer Fashion Mate 252?    |    Blaablaa asked ... How can I fix?    |    pete asked ... Flymo 330 turboglide?    |    keith asked ... Fuseboard( s) location of renault trafic t1100 1993?    |    Janet asked ... Neff B1641 door not closing at top?    |    Click here to ask your question

how do I get a door key for a locked door?

I have locked myself out of my late father's flat. I need to get in periodically to check everything is ok.
Daisy Taylor, November 2013
Call a Master Locksmith.
To find a local one, go to http://www.locksmiths.co.uk/
the search is on the front page.
If you have lost the key, safest option is to replace the lock cylinder. It would be prudent to choose one that is snap-resistant and bump-resistant.

R Phillips, December 2013