How to protect against this door attack?

[thick_diy_thighs]

Looks like they used a chisel to get access to the latch/bolt. I guess this would only work against locks that don't deadlock?

 

[opps]

Yeah, it will only work with Yale type night latches. They can then push a thin filling knife/etc in to open the door- assuming that the homeowner hasn't deadlocked it with the key on exit.

 

[JohnD]

You can get a BS nightlatch protected against that sort of attack. The one you have is either very cheap or very old.

A deadlock is better, but relies on the occupants bothering to use keys (most don't). I see there already is one.

The intruders seem not to be concerned about being seen or heard.

 

[Harry Bloomfield]

Close-fitting steel angle, on both edges will help protect a latch.

 

[crank39]

And a London or Birmingham bar for the inside as well, used to fit loads of these back in my early days 24/7 call outs, burglaries mainly

 

[Harry Bloomfield]

And a London or Birmingham bar for the inside as well, used to fit loads of these back in my early days 24/7 call outs, burglaries mainly

What's a Birmingham bar?

 

[crank39]

Birmingham Bar - Door Frame Reinforcer

Original Kickstop Birmingham Bar Door Security Device. Will greatly strengthen and reinforce a wooden door frame to resist kick-in attack and burglary.

birminghambar.co.uk