Should a Locksmith Drill Your Lock? Non Destructive Entry Guide

If a locksmith arrives at your home and immediately reaches for a drill, you have a right to question it. The Master Locksmiths Association states clearly that drilling a lock should not be the first attempt and a professional will use a drill only as a last resort. Most standard lockouts can be resolved without destroying the lock. If you are locked out on the doorstep or have just been told your lock needs to be drilled, you need to know what is normal and what is a warning sign of a scam.

What non destructive entry means

When you call a locksmith, you expect them to open your door without causing unnecessary damage. This is known in the trade as non destructive entry. It means getting you back inside your home without destroying the lock, the internal mechanism or the door itself. A skilled locksmith will carry specialised tools designed to pick or bypass the lock cleanly.

The method they use depends entirely on the type of lock and the door. For a timber door fitted with a mortice deadlock or a sashlock, the method differs from the one used on a uPVC door. For a uPVC or composite door, the focus is on the euro cylinder, which is the barrel where you insert the key. The euro cylinder operates the gearbox, which is the central part of the multipoint locking mechanism that runs down the edge of the door.

Non destructive entry also involves common sense. A professional locksmith will assess the whole situation before touching your front door. They will often look for an easier way into the property. For example, if you are locked out at the front, they might check if a back door or a side door offers a simpler route inside.

A genuine tradesperson takes pride in gaining entry cleanly. It saves time and it keeps your bill down because you do not have to pay for a replacement lock. You are simply paying for their labour and their expertise.

When a lock can usually be opened without damage

According to the Master Locksmiths Association, many common lockouts can usually be solved without reaching for a drill. If you have simply pulled the door shut and left your keys locked inside the house, the lock itself is not broken. It is in full working order, and a trained professional can normally pick or bypass it.

Night latch lockouts are another situation where non destructive methods usually work. A night latch, or rim lock, is the surface mounted latch on a timber door that is often referred to as a Yale lock. These can frequently be bypassed without damaging the rim cylinder on the outside of the door. If you are locked out with a night latch, the locksmith may open another door first as an alternative route.

Euro cylinder lockouts on modern uPVC doors can also usually be handled without a drill. Unless the lock is heavily damaged or upgraded to a very high security standard, a skilled locksmith can usually open it without a drill.

In these cases the lock should normally survive the process undamaged, so you may not need to buy a new one. Always ask the tradesperson if they have tried picking or bypassing the lock before you agree to let them use power tools.

When drilling really is the only option

There are genuine situations where drilling a lock is entirely justified. A professional locksmith will always explain exactly why they need to drill before they start work. Here are the most common situations where a drill is necessary:

• The multipoint locking mechanism has failed and deadlocked the door.
• You have lost or stolen house keys, meaning the lock needs replacing anyway.
• The door is fitted with a 3-star diamond lock and the locksmith lacks the exact pick.
• There is no feel in the lock during picking attempts.
• Picking, bumping, raking and bypassing have all been tried and failed.

If the mechanism has failed or deadlocked, drilling may be needed to get the door open.

High security locks can also force a locksmith to use a drill. If your door is fitted with a maximum security euro cylinder that meets the TS007 three-star standard or the Sold Secure SS312 Diamond standard, it is built to resist picking and lock snapping. If the locksmith lacks the specific pick required for that exact model, drilling might be the only way through.

A locksmith might also find there is simply no feel in the lock during picking. They will normally try picking, bumping, raking and bypassing first. If all of these methods have failed, drilling becomes the necessary next step. In these cases, it is a true last resort after all other options are exhausted.

Why rogue traders drill first

Drilling a lock as the very first move is a known scam tactic. Rogue traders do this for one simple reason: it inflates your final bill. When a lock is drilled, it normally has to be replaced. You are then forced to pay the tradesperson for a replacement lock, and they will often fit a cheap cylinder while charging you a premium price.

The Master Locksmiths Association warns to always be wary if a locksmith immediately attempts to drill your door lock. Skilled professionals normally try other methods first. The trade body notes that drilling can damage the internal mechanism, which raises the cost even further. If drilling damages the mechanism behind the cylinder, the bill can grow to include more than a new cylinder.

National call centres that advertise as local locksmiths are another common problem. They may quote a very low price on the phone, pass the job to whoever is nearest, and then the price multiplies on the doorstep.

The MLA reports seeing customers end up with bills over £500 for a quick lockout job. These traders often demand cash only, refuse to provide a written invoice, and arrive in unmarked vehicles with no ID. If you spot these signs, do not let them start work.

What to ask before any drilling starts

If a locksmith stands on your doorstep and says they need to drill, you need to ask a few direct questions. Keep calm and ask them to explain their reasoning. A genuine professional will have no problem answering you and providing a rough price quote based on the details you provide.

Here is a list of questions to ask before any power tools touch your door:

• Have you tried to open the lock without damaging it first.
• Is there another way into the property that could be tried.
• Is the lock completely broken or deadlocked.
• Is the lock being replaced anyway because the keys are lost.
• What standard will the new replacement lock meet.
• What will the total cost be, including the new lock, the labour and VAT.

You should also check that the business has a real local address and consistent reviews over time. If they claim to be approved by the Master Locksmiths Association, you can check this on the MLA's own website. The MLA runs a voluntary approval scheme where companies are vetted, have criminal record checks, and employ locksmiths who have passed an exam.

If the lockout is not an absolute emergency and it is late at night, consider if the job can wait. Evening, night and weekend call outs cost more. If you can safely stay with a friend or family member, waiting until the daytime rate applies will save you money.

What a replacement lock typically costs

If your lock has to be drilled, you will need to pay for a new one. It helps to know what a standard job normally costs so you can spot an inflated quote. Price is driven by the time of day, your location, the type of lock, and how entry is gained. London and the South East typically cost more.

The table below shows typical starting prices for unlocking a door and fitting common replacement locks.

These figures are MLA 2026 'from' prices including VAT. Local quotes will differ based on the time of day and the exact security grade of the lock required.

For timber doors, you should expect a replacement mortice lock to meet the BS3621 British Standard, which is shown by a Kitemark on the lock faceplate. The MLA's 2026 figures say most locksmiths will also replace the door lock after lost keys. The figures show that a standard lockout and a new cylinder are normally modest jobs, taking well under an hour. Prices still vary by area and time of day.

Reading the invoice afterwards

When the job is finished, ask for a written invoice before you hand over any money. A proper invoice is your proof of what was done, what parts were fitted, and what you paid. A reputable locksmith will provide this without hesitation.

The Master Locksmiths Association advises customers to be wary of invoices that list several separate items after a lock has been drilled. For example, a rogue trader might list a high fee for drilling labour, add a separate fee for lock fitting, and then charge an inflated price for the parts.

A trustworthy locksmith usually quotes a price for labour plus parts, either by the hour or as a fixed price per job. Many locksmiths charge no separate call-out fee, but some do, and VAT may or may not be included, so you must ask.

Check that the invoice includes a real company name, a local address, and a clear breakdown of the costs. If the trader demands cash only and refuses to write anything down, this is a strong sign of a scam.

If your lock has already been drilled

If you are reading this after the locksmith has left and you suspect you were overcharged or misled, there are steps you can take. First, keep the invoice and any receipts you were given. Do not throw away the old drilled lock if the locksmith left it behind, as it can serve as evidence. Take clear photographs of your door, the new lock, and any damage to the handle or the door frame.

Under the Consumer Rights Act 2015, a service must be carried out with reasonable care and skill, at a reasonable price if none was agreed, and within a reasonable time. You have a right to have poor work put right or get your money back. If a trader drilled a lock that could easily have been picked, or damaged your multipoint locking mechanism in the process, they may have breached this law.

Under the Consumer Contracts Regulations 2013, there is normally a 14-day cancellation period for work arranged at home or by phone. However, this does not apply where you specifically asked for a visit for urgent repairs, though any extra work sold during that visit is not covered by the exception.

If you live in a rented home and your landlord changed the locks to keep you out without a court order, this is illegal eviction, which is a criminal offence. Tenants should check their tenancy agreement and get the landlord's agreement before changing locks themselves. If you believe a tradesperson has scammed you, you can read the guide on how to complain about a locksmith who overcharged you.

Common questions

Does drilling a lock damage the door?

Drilling is destructive to the lock, and the MLA says it can damage the internal mechanism behind it, which raises the cost. That is why drilling should be a last resort and why you should ask for a total price before it starts.

Can a drilled lock be reused?

Normally not. Drilling is usually followed by fitting a replacement lock, which is why the MLA treats it as a last resort. Ask the locksmith to confirm in the quote what the replacement will be and what it will cost.

Why do some locksmiths charge more after drilling?

Some locksmiths charge more after drilling because you have to buy a new lock from them to replace the destroyed one. Rogue traders use this as an opportunity to add hidden labour fees for the drilling process itself and then overcharge for a cheap replacement cylinder. Always ask for a total price before they start.

Will my home insurance cover a drilled lock?

Home insurance policies vary widely. Some policies may help with locksmith costs and others may not. You must check your own policy wording to see what is covered and whether you need to use the insurer's approved contractor. Insurers often ask what locks are fitted, so ensure any replacement meets their standards.

Next steps to take

If you are standing on the doorstep with a locksmith who wants to drill your lock, keep calm and follow these steps to protect yourself.

• Ask if they have tried to open the lock without damaging it first.
• Suggest they check another door, such as a back door, to see if it offers an easier way in.
• Ask them to explain exactly why the lock needs to be drilled.
• Request a total price for the job, including the labour, the replacement lock and the VAT.
• Tell them to stop and leave if they refuse to give a firm price, have no ID, or act aggressively.

Finding a trustworthy local professional is the best way to ensure you pay a fair price and only have your lock drilled when it is strictly necessary. To get started, you can find a locksmith near you using the local directory.