Home & Property Guide · Updated June 2026
Locked Out With the Key on the Other Side?
It’s one of the most stressful moments at home — but it’s almost always fixable. This complete UK guide walks you through how to get back in safely, what a locksmith should cost in 2026, how to avoid the scams, and how to make sure it never happens again.
Locked out of your house with the key stuck on the other side of the door? We understand the panic and frustration. Whether you want to get back in right now, or simply be prepared so a future lockout never catches you out, this guide has you covered.
First and most important: stay calm. Panicking makes it harder to think clearly and find the quickest, cheapest, least damaging way back in. Take a breath, then work through the options below in order.
If a child, a pet, or a vulnerable person is locked inside — especially with a hob on, a bath running, or any immediate danger — don’t try DIY methods. Call 999 straight away. The fire service attends genuine “persons locked in” emergencies.
Step by step
How to get back in
Work through these in order — start with the safest, no-damage options before anything else.
Try a back or side door
The obvious first move that’s easy to forget in the moment. Check every other external door before assuming you’re locked out.
Look for an open window
Left a window on the latch, especially at the back? If you can reach it safely from the ground, it may be your no-damage way back in. Never climb to height or onto anything unstable.
The plastic card trick — on a simple latch only
This works only on a basic spring latch (a Yale-style night latch) that hasn’t been deadlocked — never on a mortice deadlock or a euro-cylinder uPVC door. On your own door, slide a flexible card between door and frame at the latch and push sharply toward the mechanism. Expect to sacrifice the card, and don’t force it.
Use a spare — or an emergency-function lock
If you’ve left a spare with a neighbour, now’s the time. Many modern euro cylinders also have an “emergency function” that lets a spare key turn the lock from outside even with a key in the inside.
Outward-opening doors
In the rare case a door opens outward, the hinges are on your side — with the right tools and a hand from a neighbour, the door can sometimes be lifted off. This is fiddly and not worth risking damage over.
Call a professional locksmith
If the simple options fail, a vetted locksmith is the safest route. A skilled locksmith can almost always gain non-destructive entry — opening the lock without damaging your door or lock at all.
Breaking a window or forcing a door risks injury, an expensive repair, and a property that’s now insecure. Unless it’s a genuine emergency (see above), a locksmith’s non-destructive entry is usually cheaper than a smashed pane and a new lock — and far safer.
The common question
Can a door be opened if the key is on the other side?
Often, yes. If your door has a euro cylinder with an emergency (or “anti-lockout”) function, it’s designed so a key from the outside can still turn the lock even when a key is left in the inside. Older or basic cylinders may not allow this — which is exactly why leaving a key in the inside lock is a habit worth breaking (more on that below).
Can the inside key be pushed out? It’s possible but rare. If the inside key happens to sit perfectly vertical, gently tapping a key inserted from outside can occasionally nudge it free — worth a quick, careful try before you call for help, but don’t count on it.
2026 prices
What does a locksmith cost in the UK?
There’s no government licensing for locksmiths in the UK, so prices vary widely and it pays to know the going rate before you call. As a 2026 guide:
| Service | Typical 2026 cost |
|---|---|
| Standard daytime hourly rate | £65–£85/hr |
| Typical lockout / non-destructive entry | £105–£250 |
| Out-of-hours / overnight call-out | +50% or more |
| London & major cities | ~20–30% higher |
| Lock change / replacement parts | £70–£165 |
| High-security or smart-lock work | £195+ |
Many reputable locksmiths charge no call-out fee during normal hours — you pay labour plus parts. After-hours rates rise sharply, and a midnight or bank-holiday lockout can run well past £300. Always ask for a fixed price, not “it depends,” before anyone starts work.
Don’t get stung
How to avoid a locksmith scam
Because the trade is unregulated, rogue operators are a real problem — the Master Locksmiths Association recorded a 66% rise in overcharging complaints through 2025, with national call-centre outfits posing as local traders. Protect yourself:
🚩 Beware the £39–£59 advert
A suspiciously low headline price at the top of search results is the classic “bait and switch” — the bill balloons once the work is done.
✅ Use an MLA-approved locksmith
Master Locksmiths Association members are vetted, criminal-record checked, inspected and qualified. Find one at locksmiths.co.uk.
📝 Get a fixed quote first
A genuine pro can give a clear price over the phone. Vagueness on the doorstep is a red flag.
🔧 They should pick, not just drill
A skilled locksmith opens most locks non-destructively. Insisting on drilling your lock straight away can be a sign of inexperience — or a scam.
📍 Prefer local over call centres
National call centres often sub the job to whoever’s nearest, with little vetting and higher prices.
💳 Keep proof & pay by card
Card payments give you recourse if you’re overcharged — and you can report rogue traders to Trading Standards.
Know your door
Why the method depends on your lock
Whether a card trick works — and how a locksmith approaches the job — comes down to the lock you have:
- Night latch (Yale-style rim lock): a spring latch that locks automatically when the door shuts. The most common cause of accidental lockouts, and the only type the card trick may open — unless it’s been deadlocked.
- Mortice deadlock (BS3621): the lever lock common on wooden doors, operated only by key. Cannot be carded or slipped.
- Euro cylinder (uPVC & composite doors): the barrel-style lock in most modern doors, often paired with a multipoint mechanism. Look for an emergency function for key-in-both-sides situations.
- Multipoint locking: the system on uPVC doors that bolts at several points when you lift the handle and turn the key.
Never again
Prevention & safety tips
🔑 Leave a spare nearby
Give a spare key to a trusted neighbour or family member close by — the simplest insurance against a lockout.
📱 Consider a smart lock
A keyless smart lock or a cylinder with an emergency-override function removes the “key on the other side” problem entirely.
🧰 Maintain your locks
Check keys and cylinders for wear, stiffness or “stickiness” and lubricate or replace them before they jam.
📞 Save a locksmith now
Store the number of a vetted, MLA-approved local locksmith today, so you’re not searching in a panic later.
🚫 Don’t leave a key in the inside lock
It can block an emergency key from outside — and on the front door it helps burglars “fish” or snap the lock. Remove it and store it safely.
🛡️ Upgrade a vulnerable cylinder
If your uPVC door has a basic euro cylinder, a TS007 3-star anti-snap cylinder resists snapping, drilling and bumping — and is often what home insurers expect.
If you’re locked out of a rented home, contact your landlord or letting agent first — they may hold a spare and are usually responsible for arranging access and lock repairs. Keep their out-of-hours number saved.
In short
If you’re locked out, stay calm and check the easy wins first — back doors, an open window, a spare key. A simple night latch may yield to the card trick; anything more secure needs the right approach. If DIY fails, a vetted, MLA-approved locksmith offering a fixed price and non-destructive entry is the safest, often cheapest route back in. Then take five minutes to prevent the next one: a spare with a neighbour, a smart lock or emergency-function cylinder, and a trusted number saved in your phone.
Quick answers
Frequently asked questions
Can you unlock a door if the key is on the other side?
Can a key inside the lock be pushed out from outside?
Will a plastic card really open my door?
How much does an emergency locksmith cost in the UK in 2026?
Are UK locksmiths regulated?
How do I stop getting locked out again?
Need a hand with your home?
From lock changes and door repairs to handyman jobs and full property upkeep, Hello Services keeps homes across the UK safe, secure and running smoothly — 7 days a week.
🔧 Explore handyman services Get a free quote📞 020 3633 4555 · 📧 info@helloservices.co.uk · Mon–Sun 08:00–20:00
This guide is general information, not professional security or legal advice. For a genuine emergency where someone is at risk, call 999. For lock work, use a Master Locksmiths Association–approved locksmith. Hello Services Ltd provides cleaning, moving, handyman and clearance services across the UK and does not operate a 24/7 emergency locksmith line.
Stay calm and assess your options carefully when facing a locked-out situation with a stuck key. Avoid forcing the key and consider calling a professional locksmith for safe and efficient resolution.
Last night around 1am I locked my door from the inside and kept the key inside. As I was getting ready to go to sleep I heard someone use a key from the outside and actually turn the key from the otherside. They were 2 men and they ran away laughing. I went to my door and tried to open it, but it was impossible. They had locked me in my apartment. Only my landlord and I have a key. I wrote my landlord and he came in through the balcony. He also couldn’t open it with my key or his key. After around 15 minutes he was able to open the door. He got upset with me. How is it possible for someone to do this? It sounds crazy to me, but I am also worried. Please let me know how this is possible and what I should do to make sure this doesn’t happen again.
Kind Regards,
Diana – living in the Subberbs of Serbia
I’m at a loss for words to thank you for your post…. I’m blown away….whoever produced this essay clearly understands a lot about this subject. Thank you for providing us with this information. This is a fantastic blog. A nice one from this blog appeals to me. Thank you for making the blog available. Handyman Services in Dubai
I learned a lot after reading the post. It will come in handy if I have a problem in the future. Many thanks from Electrician in Dubai .
Whoa, what a fantastic blog design! What is the duration of your blogging experience? Blogging seems effortless to you. Even without mentioning the content, your website looks amazing overall!
Thanks for sharing and its very helpful
Thanks for your valuable content and You provide a good insight
We offers 24-hour emergency plumbing services that are available to everyone in Dubai. We work day and night to ensure customer satisfaction and have the right knowledge in repairing, maintaining, and installing plumbing lines. Our team of experts knows how to get the job done to the best and works day and night to achieve the best results.
Great tips! Lockout situations can be so stressful, especially when the key gets stuck. I really appreciate the step-by-step advice on checking for common issues before calling a locksmith. It’s reassuring to have some quick, practical solutions to try first. Thanks for sharing!
Thanks for sharing and its very helpful. Thanks to Dubai House Fixer for Amazing Work