The short answer
If you are locked out of your house, first check every door and window you can safely reach, then call anyone who holds a spare key. If that fails, call a locksmith who offers non-destructive entry and agrees a price before starting. Do not try to force the door, as this often costs more to repair than the lockout itself.
Five steps when you are locked out
- Stay calm and stay safe. If a child, a vulnerable person or a hob is inside, call 999.
- Check every entrance. Back doors, side doors and windows you can reach safely from the ground.
- Think about spare keys. A neighbour, family member, landlord or letting agent may have one.
- Call a locksmith. Ask for non-destructive entry and a price before they come.
- Have ID ready. A good locksmith will ask for proof that you live there before or after opening the door.
What is non-destructive entry?
Non-destructive entry means opening a locked door without damaging the lock or the door. Locksmiths use specialist tools to slip latches or work the lock. It works on most nightlatches and many uPVC doors. Some high-security locks still need drilling, and a good locksmith will tell you this before starting.
How much does a lockout cost in London?
Checkatrade's May 2026 cost guide puts the average UK locksmith rate at about £65 an hour. London lockouts often cost more, especially late at night or at weekends. If the lock has to be replaced after entry, add the cost of the new lock, which Checkatrade puts at £100 to £150 for a standard lock change. Always get the price agreed first.
How to avoid rogue locksmiths
- Be wary of very low phone quotes that rise on arrival.
- Ask for the full price, including any extra charges, before they set off.
- Check the company has a real name, landline and reviews.
- Do not let anyone drill a lock without explaining why first.
Do I need ID?
Yes. A responsible locksmith will ask for proof that you live at the address, such as a driving licence, utility bill or tenancy agreement, often once you are inside. This protects you as much as anyone.
Related service: lockout and non-destructive entry.
A few common questions
What should I do if I am locked out of my house?expand_more
Check every door and window you can safely reach, then call anyone with a spare key, such as a neighbour or your landlord. If that fails, call a locksmith who offers non-destructive entry and agrees a price before starting. Call 999 if someone vulnerable is inside.
Can a locksmith open a door without damage?expand_more
Usually, yes. Non-destructive entry uses specialist tools to open nightlatches, many uPVC doors and some mortice locks without damaging them. Some high-security locks still need drilling. A good locksmith will explain this before starting and tell you the cost of any replacement.
How much does it cost to get back into my house in London?expand_more
Checkatrade's May 2026 guide puts the average UK locksmith rate at about £65 an hour, and London lockouts are often higher at night or weekends. If the lock must be replaced, a standard lock change is about £100 to £150. Always agree the full price first.
Do I need to prove I live there?expand_more
Yes. A responsible locksmith will ask for proof that you live at the address, such as photo ID with the address, a utility bill or a tenancy agreement. This is often checked once you are inside. It protects you from someone else getting into your home.
Should I try to break in myself?expand_more
No. Forcing a door or window often causes damage that costs more to fix than a locksmith visit, and it can be dangerous. Climbing to upper windows is a common cause of injury. Call a locksmith who offers non-destructive entry instead.