Door Lock & Mechanism Repair in Bristol

Family-run Bristol business · 20 years trade experience · Send us an enquiry with photos and we'll get back to you

Lock faults and what they usually mean

Here are the door lock and mechanism faults we're asked about most, what they usually point to, and the likely fix. A door that won't lock is a security issue — we treat it as a priority. These are general guides; send us a few photos and we'll confirm before anything is ordered.

A multipoint locking mechanism on the edge of a door. This is the strip that does the actual locking — the handle and the key only drive it.

How we repair door locks

We'll examine the handle, mechanism and cylinder and find the exact fault first. In most cases we carry the parts on the van:

• Worn handle and gearbox: the handle drives a gearbox inside the door that works the multipoint locking system. After years of use the springs and gears wear — the handle feels stiff, then stops operating the lock or snaps off. We remove the old handle and gearbox, fit a matching replacement and test it.
• Multipoint lock mechanism failure: when you lift the handle, the mechanism drives hooks, bolts and rollers into the frame at several points. With age and lack of lubrication it can seize or break, so the door won't lock at all or only at some points. We fit the correct replacement and test every locking point.
• Seized or worn cylinder: we remove the old euro cylinder, fit a new one with new keys, and test it locking and unlocking.

Left: the multipoint mechanism out of a door and held up against it — most people have never seen one, and are surprised it runs the full height of the door with several locking points along it. Right: the faceplate on the door edge, this one a Yale Lockmaster carrying the Secured by Design mark.

Swapping a key cylinder for a thumb-turn

Before

After

The same door, before and after. It needed a key to lock and unlock from the inside, which meant the key lived in the lock. Now it has a thumb-turn — you lock it with a twist and there is no key to hunt for on the way out. Worth thinking about if anyone in the house would struggle with a key in a hurry.

One thing to weigh up. A thumb-turn is easier to get out of, which is why people fit them. But if there is glass close enough to the lock to reach through, that same convenience works for someone outside. We will tell you honestly whether your door is a sensible candidate.

Landlords and HMOs — this one is not optional

If you let a licensable HMO in Bristol, the locks on your escape route are a licensing matter, not a preference. Bristol City Council's fire safety standards for licensable houses in multiple occupation put it plainly:

“Any security lock provided should have a thumb-turn or be capable of being immediately opened without the use of a key (except where that room is used for sleeping purposes and has an escape window).”

In practice that means a tenant has to be able to get out without hunting for a key — in the dark, in smoke, at three in the morning. A thumb-turn cylinder is the usual way of meeting it: key from the outside, twist from the inside. The national guidance councils work to is the LACORS 2008 housing fire safety guide, and Bristol's standard follows it.

A double-cylinder lock that needs a key on both sides is the thing to look for and get rid of. On an escape route it is the fault that matters most.

We fit thumb-turn cylinders across Bristol for landlords and letting agents, usually the same visit, and we can go through a property door by door (£145 + VAT, £174 inc VAT) if you are preparing for a licence inspection or have had something flagged.

We are glaziers and door engineers, not fire safety consultants — check anything specific with your licensing officer or fire risk assessor. Source: Bristol City Council, Fire Safety Standards for Licensable Houses in Multiple Occupation.

What does it cost?

We agree the price before starting any work. For how lock work compares with other common door jobs, see how much door repair costs in Bristol.

Do I need a new door?

Usually not — not if the door itself and frame are still sound. A new multipoint mechanism costs a fraction of a new door and gives you years more reliable use. Even a full mechanism replacement is a much better investment than replacing a door that is structurally sound.

We'd only suggest replacement if the door frame or slab itself has failed, or if the door is very old and multiple components are failing at once. If you're already thinking about a new door, we can advise honestly on whether repair still makes sense.

Frequently asked questions

• Do you do emergency call-outs?

  Yes. If you can't lock your door or secure your home, call us on 07400 466844 and we'll treat it as a priority. Outside our opening hours (Monday to Friday 7:30am–6pm, Saturday 8–10am) we'll come out when we can, at our same fixed prices plus £45 + VAT (£54 inc VAT).

• We've just moved in — should we change the locks?

  It's a good idea — you don't know who still has a key. On most uPVC and composite doors you don't need a new lock, just a new Euro cylinder (the barrel the key goes in): £145 + VAT (£174 inc VAT), or £95 + VAT (£114 inc VAT) if we're already doing another repair. While we're there we can check the windows and doors the previous owners didn't use much.

• How much does a door lock repair cost?

  A Euro cylinder or handle is £145 + VAT (£174 inc VAT) on its own, or £95 + VAT (£114 inc VAT) alongside another repair. A centre case (gearbox) is £180 + VAT (£216 inc VAT) and a full lock and strip is £290 + VAT (£348 inc VAT), both with realignment included if necessary.

• What is the difference between the cylinder and the mechanism?

  The cylinder is the barrel the key goes into. The mechanism is the long strip down the edge of the door that does the actual locking.

• My key turns but the door will not lock — what is that?

  There are several possible causes — the cylinder, the gearbox, the multipoint mechanism, or the door has dropped so the locking points no longer line up. It's best seen in person, so send us photos first and we'll give you a rough price and arrange a time.

• Can you get me back in if I am locked out?

  Get in touch and tell us the situation. We deal with lock and mechanism failures on uPVC and composite doors, and we will be straight with you about whether we can help and how quickly.