What to Do If You Lose Your House Keys
Last updated: 3 August 2025
Step 1: Stay Calm and Retrace Your Steps
Before panicking, take a moment to retrace your steps. Check coat pockets, bags, and common surfaces like tables or car seats. If you were out, call any places you visited to ask if keys were handed in.
Step 2: Consider Who Has a Spare Key
If you gave a spare key to a trusted neighbour, friend, or family member, contact them first. This can save you the hassle and cost of calling a locksmith.
Step 3: Call a Locksmith if You're Locked Out
If you're locked out and have no spare, call a local locksmith. Choose one who’s DBS-checked and registered with the Master Locksmiths Association (MLA) if possible. Avoid drilling or replacing locks unless absolutely necessary — many professionals can open doors without damage.
Step 4: Replace the Locks if Keys Are Truly Lost
If you can’t find your keys and suspect they’re lost for good — especially if they were stolen or linked to your address — it's safest to change the locks. This protects against potential break-ins.
Step 5: Check Your Insurance
Some home insurance policies include cover for lost or stolen keys, including locksmith fees or lock replacements. Contact your insurer to check if you're covered before paying out of pocket.
Step 6: Update Any Security Systems
If your keys were attached to a fob or smart lock device, update access permissions or reset the system. Some smart locks allow remote disabling through a mobile app.
Preventing Future Issues
- Give a spare key to someone you trust
- Avoid labelling keys with your name or address
- Use a secure key safe (with code access) outside your home
- Consider switching to a smart lock system with app access