we have a pvc front door which the handle won't deadlock from the inside,although it will unlock from the inside.the handle works fine from the outside.would just like to understand whats wrong with it and how to fix it without someone charging me silly money to fix it
Could be a variety of issues but normally a gearbox failure. Replacement costs vary but on some brands you can buy the gearbox standalone instead of the entire mechanism.
www.pro-locksmiths.co.uk
Matt, December 2010
Don't know what's up with your door but round here there are a couple of firms who fix problems with upvc doors and windows and charge £25. Ring a similar firm to see what they would charge?