Dalston Locksmith Service Team
Local locksmith team
2 Sep 2026 4 min read
You put the key in, give it the usual turn — and nothing happens. It stiffens halfway, grinds, or just sits there refusing to move. It is a frustrating moment, and it tends to happen at the worst possible times: late on a cold evening on Queensbridge Road, back from a long shift, bags in hand. Before you force anything or start worrying about what to do if locked out of house, it helps to understand what is actually going on inside the lock — because the right response in the first thirty seconds can be the difference between a quick fix and a damaged door.
This guide walks you through the most common reasons a key stops turning, what you can safely try yourself, and the point at which you should stop and call a professional locksmith London team rather than risk making things worse. Whether you have a Yale-type nightlatch, a 5-lever mortice deadlock, or a uPVC door with a euro cylinder multipoint lock, the advice here is specific to the kind of front doors you will find across Hackney — Victorian terraces in London Fields, housing association blocks in Homerton, newer builds around Dalston Junction.
Frequently asked questions
What should I do if my key snaps inside the lock?+
Do not try to retrieve it with pliers, tweezers, or other tools pushed into the keyway — this risks pushing the broken piece deeper into the cylinder, making extraction harder. The safest approach is to call a professional locksmith straight away. Broken key extraction is a standard part of our work, and once the fragment is removed we will assess the cylinder to confirm it is still in good working order before you rely on it again. Call 020 3757 8288 and we can usually reach you in about 30 minutes.
My uPVC front door key turns but the door will not open — what is happening?+
On a uPVC multipoint lock, the cylinder and the handle work together. If the cylinder turns but the door stays shut, the most likely cause is that the multipoint hooks or bolts have not retracted properly — either because the gearbox inside the door has worn or jammed, or because the door has dropped slightly so the hooks are under pressure from the frame keep. This is not a job to force; the internal gearbox can be damaged if the handle is pushed hard while the mechanism is under load. A trained locksmith can assess whether it is a cylinder issue, a gearbox fault, or a door alignment problem and carry out the right repair — which might be a uPVC door lock repair rather than a full door lock replacement.
How much will it cost to change the lock or replace a cylinder?+
The final price depends on several factors: the type of lock or cylinder needed (a standard euro cylinder, a TS007 3-star anti-snap upgrade, or a full 5-lever mortice deadlock all differ), the condition of the existing hardware, the time of day, and your location within our service area. We confirm the exact price with you on the phone before anyone sets off, so there are no surprises on the doorstep. There is a call-out charge, and this is included in the price we quote upfront.
Is it safe to try to open my own lock if I am locked out?+
The only safe and legitimate steps to try yourself are those outlined in this article: gentle pressure to relieve door sag while turning the key, trying a spare key if you have one, applying graphite powder to the keyway, and checking whether another entrance is accessible. Beyond that — and especially if you have a uPVC multipoint door or a mortice deadlock — it is best to call a professional. Attempting to force, pick, or bypass a lock without the right tools and knowledge risks damaging the door or the frame, which can make the job more involved and potentially leave the door insecure. If you are locked out and unsure what to do, call 020 3757 8288 and our team will talk you through the situation before we come out.
