How to spot a rogue locksmith

Start with the fact that explains all the others. Locksmithing in the United Kingdom is completely unregulated. There is no licence, no register you must be on, no minimum training and no vetting requirement. A person can buy a van, print the word locksmith on it and trade legally the same afternoon, having never opened a lock in their life and with any criminal record you care to imagine.

This is not an oversight nobody has noticed. Parliament debated licensing the trade on 22 September 2021, and the Government declined to introduce it. So the position is settled and current: the only checks on who turns up at your door are the ones you make yourself. Every piece of advice below exists because of that.

In an investigation published on 5 March 2026, BBC London gathered 129 responses from people who had used a locksmith. The average initial quote across them was £91. The average final bill was £773. That is an increase of roughly 750 per cent between the figure that persuaded people to say yes and the figure they were asked to pay.

The largest single bill reported in that piece was £2,862. Twenty-two of the people who responded reported threatening behaviour, which tells you the overcharging and the intimidation are not separate problems. The bill arrives when you are already inside your own house, the work is already done, and the person holding the invoice is standing in your hallway.

A separate BBC case, published on 13 February 2026, involved a couple aged 85 who were quoted £49 and invoiced £2,802 after their lock was drilled out unnecessarily. That last detail is the mechanism, not the incident. Drilling a lock that could have been picked converts a labour-only job into labour plus a replacement lock plus the fitting of it, and it looks to the customer like skilled work rather than manufactured cost.

The gap between £91 and £773 is not the sort of thing that happens by accident. A quote that low is not a mistake, it is the opening move.

The Master Locksmiths Association recorded complaints about rogue locksmiths rising from 242 to 402 between 2021 and 2025. That is a two-thirds increase over four years, from the trade body most likely to receive the complaint in the first place.

It is also, obviously, an undercount. Most people overcharged at their own front door at eleven at night pay it, feel stupid about it, and tell nobody except the person they live with.

Why it works is worth stating plainly, because understanding it is most of the defence. You are locked out. You are cold, or late, or with a child, or it is dark. Every ordinary instinct you would apply to a £700 purchase, comparing, thinking about it, sleeping on it, is unavailable to you. The dishonest part of this trade is built around that.

Which? surveyed MLA members in April 2024 and found that 75 per cent of them said rogue locksmiths often quote an unusually low price. That is the trade itself identifying the bait, and it matches the BBC figures exactly: the quote is not a price, it is the thing that gets the van to your door and the drill into your lock.

A headline of "from £39" or similar cannot cover the labour, let alone parts. It is not a keen operator running lean. It is the first half of a two-part number, and you will be told the second half after the work is finished.

The same Which? research found that around a third of MLA members said the single most important thing is that your call is answered by a locksmith and not diverted to a call centre. That is a sharper test than it looks. A national call centre sells your job on to whoever is nearest and takes a cut, so the person quoting has never seen your door and the person at your door never agreed the price. Neither of them owns the number you were given, and the bill lands somewhere between them.

Ask who you are speaking to, and whether they are the person attending. A locksmith can answer that in three words.

Because the trade is unregulated, it is full of invented credentials, and they are convincing precisely because there is no real register to check them against.

The clearest example is on the MLA's own record: there is no such thing as a "Police Approved Locksmith". The police do not approve locksmiths. Any business claiming that is either confused about what it has or is counting on you not knowing. Treat "licensed" and "government approved" the same way, and ask what, specifically, is meant.

Just as common is the invented qualification. Because no regulated locksmith qualification exists in the UK, an awarding body's name attached to the word "qualified" is doing work the underlying certificate cannot support. The question is not whether somebody says they are qualified. It is who trained them, what the certificate says, and whether they will show it to you.

The same test applies to insurance and to background checks. A claim with a number, a date, an insurer or a certificate behind it can be checked. A logo on a website cannot, and logos are free.

A bait price. Anything in the "from £39" family, on the website or on the phone. It is the single most reliable signal, and the trade body's own members agree.

Vagueness about cost. Any version of "we will see when we get there" that comes without a basis for the charge. A real locksmith can price a job from a description because they have done it hundreds of times.

A call centre rather than a locksmith. If the person on the phone is taking details to pass on, the price you are being given was not set by the person who will do the work.

No named person and no photograph. Rogue operations are deliberately faceless, because the name has to be disposable. If nobody on the site is a person, ask who is coming.

An address that does not hold up. A virtual office, a mailbox, or an address that turns out to be in a different city entirely, often paired with a map pin and a stock photograph of a shopfront that does not exist. A business can be genuinely mobile and have no shop, which is normal. Inventing a premises is a different thing.

Unnecessary drilling. If you are told a lock has to be drilled, ask why this particular lock cannot be picked. There are real answers to that question, on certain high-security cylinders and on locks that are broken internally. A locksmith who cannot give you one, or who is already drilling while answering, is generating a parts bill.

Three questions, on the phone, before anybody drives anywhere.

First, ask for the price broken down into the call-out charge, the labour and the parts. That is London Trading Standards advice and it works because vagueness cannot survive being asked to fill in three boxes. Ask whether it is fixed or an estimate, and whether it includes VAT.

Second, ask for the name of the locksmith attending. Not the company name, the person. Write it down. If somebody else arrives, you have learned something important before letting them touch anything.

Third, ask what happens if the job turns out to be different from what you described. The answer you want is that the work stops and the new price is put to you before it is carried out.

Then ask for identification at the door, and look at it. You are letting a stranger open your home. Anybody doing this work properly expects to be asked.

This is the part people do not know, and it is the one that matters most at the moment it matters.

If the price changes when they arrive, you can refuse. You do not have to let them start, you do not owe them for the journey, and you are not trapped by having made the call. Standing outside your own front door feels like a position of no power and legally it is not one. The agreement was the price you were given. If they are no longer offering that, they are proposing a different deal, and you can decline a different deal.

If the work is already done and the bill has grown, do not assume the invoice is the end of it. Undisclosed charges are not payable under the 2013 regulations, a price you relied on is a contract term under the Consumer Rights Act 2015, and drip pricing has been unlawful since April 2025. Pay by card if you can, since that leaves you a route back. Keep the paperwork, photograph the door and the old lock, and report it to Citizens Advice, which passes reports to Trading Standards.

And if somebody becomes threatening, that stops being a consumer dispute. Twenty-two people in the BBC's sample reported exactly that. It is a police matter and should be treated as one.