Locks in interior doors interior doors are usually fitted with a mortise lock with a latch operated by the door handle or knob.
Fitting a new front door lock.
The main locks on your exterior doors should be to bs3621 standard.
Euro lock cylinders anti snap on front and back doors.
When possible fit two locks on your front door both to bs3621 standard.
Then line up a combination square with the old door s hinge mortises and transfer their locations to the new door marking the edges with a utility knife.
Some new doors do not have a recess for the lock which means you will have to cut this out yourself.
1 day to complete diy or 160 200 to hire a professional.
Measure the diameter of the holes currently cut out of your door so you can select a new door lock that fits those dimensions.
Install a new door lock and door knob by inserting the latch through the hole for the new parts.
Fit locks and door furniture.
Fitting a new door lock and letterbox if you only have a simple yale lock on the front door technically known as a nightlatch it is easy to replace it with a secure door lock.
Insert the lockset tailpieces through the latch bolt and screw the handles together by tightening the retaining screws.
Mortice locks deadlock sashlock.
Take care to measure carefully as matching the size can be especially problematic in older homes.
A local mla locksmith can fit replace and change all types of door locks such as.
Door lock replacement fitting.
Upvc door locks on front and back doors.
What you need is a surface mounted replacement rim lock and you should choose the type that is designed to replace an existing nightlatch.
Yale locks night latches on front and back doors.
The easiest way to do do this if the old door was a good fit is to lay the new door on top of the old door so the edges are flush.
Before you learn how to change door locks measure the space where you ll install the replacement.
Fit hinges to frame.
Most insurance companies demand this level of security.