09/28/2026
Stop a Kicked-In Door for Under $20: Door Reinforcement Lock
If there's one upgrade I recommend to almost every homeowner who asks me how to harden a front door without replacing the whole lockset, it's a door reinforcement lock like this one. The Prime-Line U 10827 Door Reinforcement Lock isn't flashy, and it won't show up in a smart-home app — but it does one job extremely well: it stops a door from being kicked or shouldered open, even after the primary lock has failed....
If there's one upgrade I recommend to almost every homeowner who asks me how to harden a front door without replacing the whole lockset, it's a door