How to Avoid Turning a £100 Lockout Into a £400 Repair

Getting locked out of your home is frustrating enough without turning it into a much larger repair bill. An emergency locksmith may be able to get you back inside without damaging the door, while trying to force your own way in can leave you paying for a lock, frame or even a replacement door on top of the original problem. There is also another risk to watch for, because very low advertised locksmith prices don't always reflect what you will eventually be asked to pay.

That isn't simply a theoretical warning. A BBC investigation into locksmith pricing found one company quoting £40 for a door-opening job before presenting the undercover reporter with a £376.80 bill after drilling and replacing the lock. The same investigation featured an elderly couple who said they had expected to pay less than £50 but received a £2,802 invoice, followed by a further £2,244 cost to repair the damaged door and frame.

I've only needed a locksmith once myself, but that experience was enough to make us rethink completely how we store spare keys. It started after a lovely holiday in France and ended with us standing outside our own front door late at night, holding the key to the villa we'd just left and realising that our actual house key was still in France; that was good day!

What should you do first if you're locked out?

Before trying anything with the door, work through the other ways you might legally get inside. Check whether another member of the household has a key, whether somebody trusted holds a spare, and, if you rent, whether the landlord or letting agent can help. A few telephone calls can be considerably cheaper than damaging the lock or arranging an emergency call-out.

That was where our own experience became particularly frustrating. We rent our house and our letting agent holds a spare key, so during office hours that would have been the obvious answer, but we'd arrived home late and nobody was available. My parents also held a spare, but they weren't around, and the key we needed to get into their house was, rather unhelpfully, locked inside ours.

We hadn't left another key with a neighbour or friend, which left us with very few options. We ended up having to pay for a professional locksmith to get us inside, and the timing meant the bill was considerably more painful than simply collecting a spare key would have been. We now have spare-key arrangements with people we trust so that the same chain of events is far less likely to happen again.

Don't try to force your way back in

Trying to shoulder the door, kick it or prise it open with a screwdriver can turn one problem into several. Even if you don't get through the door, you can damage the frame, locking mechanism, hinges or surface finish, leaving you with repair costs after you have eventually regained entry. Trying to slide cards or improvised tools around modern locking systems can also damage the door without solving the lockout.

The same caution applies when a key has snapped inside the cylinder. Pulling at the fragment with unsuitable pliers or pushing tools into the keyway can move the broken section deeper or damage the cylinder itself. What could have been a key extraction may then become a lock replacement.

There are situations where paying an experienced emergency locksmith is the cheaper option because you are paying somebody to deal with the lock rather than risking additional damage yourself. The exact method needed will depend on the lock, the door and why it isn't opening, which is why it is worth asking how the locksmith intends to approach the job before work begins.

Beware of very cheap locksmith adverts

A very low headline price can look attractive when you're standing outside in the cold, particularly if several search results seem much more expensive. The difficulty is working out whether the figure represents the full expected price or only an initial call-out fee which will later have labour, drilling, parts, VAT and other charges added.

Consumers have been warned about adverts using figures such as £49, £59 or £69 before prices rise after the locksmith arrives. Consumer guidance also highlights unnecessary drilling, unclear pricing and limited accountability as warning signs associated with rogue operators.

The BBC's undercover test showed why the distinction matters. The initial £40 quote became £376.80 after charges for opening the door, a new lock, labour and VAT were added, so the final amount was more than nine times the telephone quote.

What should you ask before a locksmith sets off?

You won't always get a guaranteed final figure before somebody has seen the lock, because faults and lock types vary. You should still be able to find out how the company charges and what could cause the price to rise, giving you something meaningful to compare before agreeing to the call-out.

Question to ask	Why it matters
Is there a call-out charge?	A low advertised amount may only cover attendance
What is the expected total for gaining entry?	Gives you a realistic starting figure rather than an advert price
Does the quote include VAT?	Prevents another charge appearing at the end
Is there an evening, weekend or bank-holiday fee?	Emergency and out-of-hours rates can differ
What could make the price increase?	Helps you understand what happens if the lock can't be opened normally
Will you ask before drilling the lock?	Stops destructive work being authorised without your agreement
How much would a replacement lock cost?	Lets you assess the complete cost before the old lock is removed
Will I receive an itemised receipt?	Useful for your records and any insurance claim

Don't feel you have to accept work simply because somebody has arrived, particularly if the price on the doorstep bears little resemblance to what you were told on the phone. Ask what has changed and request a clear figure for the work before it continues. If the explanation doesn't make sense, you can decide whether you want to proceed.

Does an emergency locksmith always need to drill the lock?

No single method works for every lockout, and there are circumstances where drilling may be required. The warning sign isn't the existence of a drill; it is somebody immediately insisting that destructive entry is the only possible route without explaining why less damaging methods aren't suitable.

During the BBC investigation, the lock used in its undercover test was inspected by an expert who demonstrated that it could be opened without damage. The company called by the BBC still chose to drill it, which then led to further charges for the new lock and labour.

Ask what the locksmith has tried, why drilling is necessary and what the total cost will become once replacement parts are included. You don't need to understand lock engineering to ask for an explanation before somebody permanently destroys the existing cylinder.

How can you find a locksmith you can trust?

Don't rely solely on whichever company has paid to appear most prominently in a search result. Check that the business has clear contact information, ask about pricing and look for evidence of independent vetting rather than treating online reviews as the only test.

The Department for Business and Trade has acknowledged concerns about rogue traders in the locksmith industry and says locksmiths must comply with existing consumer legislation.

One useful piece of preparation is to find a local provider before you need one and save the number in your phone. The MLA makes the same recommendation in its consumer guidance, because doing the checking when you're sitting comfortably at home is very different from doing it while standing outside at 11pm.

Check your insurance before replacing a lock

If a lock has to be replaced, don't automatically choose the cheapest one available. Home insurers can set minimum security requirements, and the appropriate standard depends on the type of door and the terms of your own policy. Check what your insurer expects before buying or agreeing to a replacement.

For timber doors, BS3621 is commonly associated with 5-lever mortice locks, while many uPVC and composite doors use multipoint systems with euro cylinders where TS007 security ratings can be relevant.

One insurer's current guidance notes that three-star TS007 security can come either from a three-star cylinder or from a suitable combination of cylinder and security door furniture.

The important part is your own policy wording rather than assuming one standard applies to every home. If a locksmith is fitting a replacement, ask what has been installed and keep the invoice so you have a record for your insurer.

Could home insurance pay for lost keys?

It is worth checking before assuming the whole cost has to come from your own pocket. Some home insurance policies provide cover towards replacing external locks when house keys are lost or stolen, although the amount, excess and circumstances covered depend on the policy.

If you're locked out, look at your policy documents or insurer's app while you are arranging help. There may also be a home-emergency telephone number or a requirement to contact the insurer before authorising certain work, so checking first can avoid problems with a later claim.

Keep the receipt even if you don't know yet whether you are covered. An itemised invoice showing the work and replacement parts gives you something useful to provide if you subsequently make a claim.

What if you rent your home?

If you are a tenant, contact the landlord or letting agent first where that is practical. They may hold a spare key, have an out-of-hours contact or have a particular contractor they use, and one of those routes could avoid you having to arrange a locksmith yourself.

That is exactly what we would normally have done when we came back from France. The only reason we couldn't use the letting agent's spare was the time we arrived home, which turned what would normally have been a simple key collection into an emergency expense.

If somebody is proposing to replace the lock rather than just open the door, tell the landlord or agent where possible before authorising the change. They will need to know that the property's lock has changed and may need a copy of the new key.

Don't assume the cheapest replacement lock saves money

If the original lock is genuinely damaged or needs replacing, look at suitability as well as price. A very cheap cylinder which doesn't meet your insurer's requirements could create a different problem later, while paying far more than necessary for features your door doesn't need makes little sense either.

Ask what standard the proposed replacement meets and whether it is appropriate for the existing door.

For many uPVC and composite doors, the cylinder is only one part of a multipoint locking system, so the security of the complete setup matters rather than simply buying something labelled as a strong lock.

If the replacement has been prompted by an emergency call-out, don't let the urgency stop you asking what part is being fitted and how much it costs. A few extra minutes checking the detail can prevent another surprise when the invoice arrives.

A little preparation can remove the whole bill

Our own lockout changed how we think about spare keys because the expensive part wasn't anything technically complicated. The problem was that every cheaper route to the house depended on a spare key we couldn't reach, so paying for somebody to come out late at night became the only realistic solution.

We now make sure trusted neighbours, friends and family can help if we lock ourselves out. A spare shouldn't be hidden under a mat, plant pot or other obvious outdoor location, but having one securely available elsewhere can turn an emergency into a quick phone call.

It is also worth replacing a badly worn, bent or sticking key before it fails and saving the number of a vetted local locksmith before you need one. If you have recently moved, think about whether you know who may still hold copies of the keys and whether changing the lock is appropriate for your circumstances.

Could an emergency fund help with the cost?

Locksmith bills are a good example of why even a relatively small emergency fund can be useful. Nobody wants to save specifically for leaving a key in another country, but an accessible cash buffer can mean an unexpected home repair doesn't immediately have to go onto a credit card or overdraft.

My guide to why emergency funds matter looks at how setting aside money for urgent and unexpected costs can reduce the knock-on effect when something goes wrong. A locksmith, boiler breakdown or urgent car repair may all arrive without much warning, so even a modest reserve can give you more choices.

The aim isn't to make emergencies cost nothing, because some bills can't be avoided. It is to stop the first problem creating a second one through unnecessary damage, expensive borrowing or a rushed decision made because you have no other option.

Before you agree to the job

If you do need an emergency locksmith, get as much pricing information as you reasonably can before they travel to you. Explain what type of door you have if you know, describe what has happened, ask about out-of-hours charges and make it clear that you want to be consulted before any destructive work or replacement parts are authorised.

Once somebody arrives, ask them to explain what they intend to do before the work starts. Drilling may sometimes be necessary, but it shouldn't become an automatic route to a larger invoice without an explanation.

And if you haven't already done it, sort out the spare-key plan once you're safely back inside. We learned that one after bringing a French villa key home while our own key remained on the other side of the Channel, and I have no intention of paying for the same lesson twice.

Frequently asked questions

How much does an emergency locksmith cost?

There is no single UK price for an emergency locksmith because the time of day, type of lock and work required can all affect the bill. Ask about the call-out charge, likely total cost, VAT and any out-of-hours fee before anyone travels to you.

Should an emergency locksmith have to drill my lock?

Sometimes drilling is necessary, but it should not automatically be the first option for every lockout. Ask why a non-destructive entry method is not suitable and what the full replacement cost will be before agreeing to drilling.

Does home insurance cover lost house keys?

Some home insurance policies include cover for lost or stolen keys and replacement external locks, but limits and conditions vary. Check your own policy before paying the full cost yourself and keep any locksmith invoice.

What should I do if I am locked out of a rented house?

Contact your landlord or letting agent first if that is practical, as they may hold a spare key or have an emergency contact or preferred contractor. If it is out of hours, check your tenancy information before arranging replacement work where possible.

What should I ask a locksmith before they come out?

Ask about the call-out fee, likely total price, VAT, out-of-hours charges and what could cause the price to increase. Also ask whether they will get your agreement before drilling or replacing the lock.