Best automatic garage door locks

Start with the LiftMaster 841LM. It's the automatic lock most garage-door openers are built to work with: it bolts into the track and throws a deadbolt on its own every time the door closes, and it ties into the opener's app so you can see and control it. It's the pick for most people because it's a genuine opener-maker part rather than a generic add-on.

Who the others suit:

• SureLock Automatic Deadbolt — if you have a non-LiftMaster/Chamberlain opener; it works with any opener and keeps a manual release for power cuts.
• Chamberlain 001-9412-000 — a like-for-like replacement for a Chamberlain opener that already had an automatic lock.
• LiftMaster 041A6102 Power Door Lock — the older-style LiftMaster power lock, for openers that use that part.
• B&D Auto-Lock — only if you own a B&D SDO-6/7/8 opener; it's imported, so duties may apply.
• Universal keyed lock kit / American Garage Door Supply latch — manual locks, not automatic; fine as a cheap extra bolt, not a substitute.
• Vestil DR-LOCK — a commercial dock-door lock, not for a home garage.
• Yale LiftMaster touchscreen deadbolt — a smart entry deadbolt for a person-door, not the garage door itself.

Check your opener's brand and model before buying — the automatic locks are opener-specific.