Lock Change After a Break-In
A break-in is a deeply unsettling experience, and in the hours that follow, getting your property secured again is the most urgent priority. Whether your front door was forced in Orpington High Street, your back uPVC door was targeted near Green Street Green, or an attempted entry left your euro cylinder damaged but the burglar unsuccessful, Chelsfield Locksmith sends a trained technician straight to you — usually within about 30 minutes of your call. We carry a wide range of replacement locks and cylinders on the van, so in most cases your home or premises can be fully secured the same day, often the same hour.
Open 24 hours, 7 days a week · Fully insured

What makes the situation harder is that a break-in rarely leaves your existing lock in a usable state. Cylinders get snapped, door frames get splintered, and even where the intruder did not get in, your lock mechanism may be compromised in ways that are not immediately visible. Our lock change service is specifically designed for exactly this scenario: we assess what the burglar has damaged or exploited, replace the right components, and ensure the finished result meets the standard your insurer is likely to expect — without rushing or cutting corners.
What we do
Available 24/7
Day, night, weekends and bank holidays — a real local locksmith answers and sends a fully-stocked van.
We come straight away
Based in Orpington, we send a locksmith straight away — we're usually with you in about 30 minutes.
Fully insured
Vetted locksmiths, a clear price on the phone, and no surprise add-ons when we arrive.
Damage-free entry
We pick and bypass locks the right way, so most lockouts are solved without drilling anything.
What Happens to Your Locks During a Break-In — and Why a Lock Change Is Essential
The most common method used on residential front doors in the Orpington area is euro cylinder snapping. An intruder snaps the visible part of the cylinder using basic leverage, exposing the internal cam mechanism and opening the door in seconds. If your door uses a standard euro cylinder without anti-snap protection, it is vulnerable regardless of how solid the door itself looks. After a snap attack, the cylinder is destroyed and must be replaced — but critically, it must be replaced with an upgraded anti-snap cylinder, ideally TS007 3-star rated, so the same method cannot be used again. We stock these on the van as standard. For traditional timber front doors with a Yale-type nightlatch and a 5-lever mortice deadlock, forced entry usually damages the nightlatch or the frame around the mortice. In either case, fitting a replacement with like-for-like or better specification is not optional if you want your home insurer to remain cooperative — many policies require a BS3621-rated mortice deadlock on the front door.
Back doors, patio doors, and French doors present their own challenges after a break-in. uPVC and composite back doors rely on a multipoint locking mechanism, and after a forced entry the gearbox inside the door slab can be bent or the cylinder sheared. A door lock change on a uPVC door requires the correct gearbox size and a compatible cylinder — getting either wrong means the door will not close securely. Our technicians carry measuring tools and a broad stock of multipoint gearboxes and cylinders to match the most common uPVC door configurations found across BR5, BR6, and the surrounding postcode districts. Where damage extends to the door frame or hinges, we will tell you honestly what we can resolve on the visit and what may need a joiner.

Emergency Lock Change Orpington — Same-Day Response After Burglary or Attempted Entry
When you call 020 3757 6199 after a break-in, we treat it as an emergency lock change from the moment the call connects. We are available every hour of every day — evenings, weekends, and bank holidays included — because break-ins do not follow office hours. A mobile technician is dispatched straight away, and we are usually with you in about 30 minutes, depending on where in and around Orpington you are. We cover the town centre, Petts Wood, Chelsfield, Farnborough, Goddington, Crofton, and the broader BR5 and BR6 areas as a matter of routine. If you are unsure whether we cover your road, call us — we will confirm immediately.
Before any work begins, we confirm an exact up-front price on the phone or on arrival, so there are no surprises on the invoice. The final quote depends on several factors: the type of door and lock mechanism involved, the number of locks or cylinders being replaced, the parts required, the time of day, and travel distance. We do not begin work until you have agreed to that price. Our technicians are trained, experienced, and fully insured — they carry professional identity and will show you these on request. If your insurer or landlord asks who carried out the work, we can provide a written receipt detailing every component fitted.

Lock Change After a Break-In — Choosing the Right Replacement Locks
Not all replacement locks offer equal protection, and after a burglary it is worth upgrading rather than simply replacing like for like. For euro cylinder doors, we strongly recommend fitting an anti-snap, anti-pick, anti-drill cylinder rated to TS007 3-star or at minimum TS007 1-star combined with a 2-star door handle. These are the configurations that satisfy most home insurance policies and that significantly slow down or defeat the snapping technique. We stock cylinders in a full range of sizes to suit common uPVC and composite door configurations across the Orpington area. For timber doors, a 5-lever mortice deadlock to BS3621 remains the benchmark that most insurers specify. Where the existing lock was a 2-lever or non-BS version, now is a sensible moment to upgrade.
Flats and blocks of flats have additional considerations. If you rent your flat or live in a leasehold property, the communal entrance door is usually the responsibility of the freeholder, landlord, or managing agent — we can advise on that division of responsibility and, if needed, liaise with your letting agent on what has been damaged. Your own flat's front door is generally your responsibility to secure. We handle door lock changes for both residential tenants and owner-occupiers, as well as commercial premises — a commercial lock change after a break-in at a shop unit or office in Orpington follows the same urgent response approach, with the added consideration of supplying multiple keys for different keyholders. If you need an emergency lock change for a commercial property, call 020 3757 6199 and we will confirm whether we can match your specific commercial door specification before arriving.

What to Do Immediately After a Break-In — Practical Steps Before We Arrive
Before calling us, your first call should be to the police on 101 (or 999 if the intruder may still be on or near the property). Get a crime reference number — your insurer will ask for it, and it also supports any claim for the cost of the emergency lock change itself. Do not clean up or move anything that might be evidence until the police have attended or advised you that they will not be sending someone. Once that is handled, call us. While you wait, avoid attempting to operate a damaged lock mechanism — a snapped cylinder, a bent multipoint gearbox, or a forced nightlatch can jam further if you try to force it, making the technician's job harder and potentially causing additional door damage.
If you are a tenant, notify your landlord or letting agent as soon as possible — they may have an obligation to assist with securing the property, particularly if the building structure has been damaged. If the break-in occurred at a rented property and you cannot reach the landlord, our technician can still carry out a house lock change to make the property secure immediately, and you can resolve the administrative side separately. We understand that in these situations the priority is simply getting back inside safely with working locks on the door — everything else can follow.

We Help With — The Full Scope of Our Break-In Lock Change Service
After a burglary or attempted entry, our service covers a broad range of specific tasks on the visit: fitting anti-snap euro cylinders for uPVC and composite doors; replacing 5-lever BS3621 mortice deadlocks on timber front and back doors; installing Yale-type nightlatches with improved anti-snap keeps; fitting multipoint locking gearboxes on uPVC doors where the mechanism has been damaged; replacing damaged door handles and backplates; assessing and reporting on frame damage that may need a joiner to follow up; supplying additional cut keys for replacement locks fitted; changing cylinders on communal flat entrance doors where the building manager has authorised the work; fitting door reinforcement hardware where the frame or strike plate has been compromised; and carrying out door lock replacement Orpington properties of all types — terraced houses, detached homes, converted flats, and commercial units.
We also help with UPVC door lock repair Orpington calls where the door is misaligning after a forced entry attempt — sometimes the frame has been pushed and the multipoint hooks are no longer engaging the keeps correctly. Realigning the door and adjusting the keeps is part of what we assess on arrival. Where a door cannot be made fully secure on the same visit due to structural damage beyond the lock itself, we will make it as secure as we can and advise clearly on what further work is needed. We do not oversell or recommend unnecessary replacements — if your existing lock is undamaged and simply needs a cylinder swap, that is what we do.

Frequently asked questions
Answers to what our customers ask most. Still unsure? Just call.
How quickly can you get to me in Orpington after a break-in?+
We dispatch a mobile technician straight away and are usually with you in about 30 minutes of your call, though exact travel time depends on where you are and how busy the roads are at the time. We cover Orpington, Petts Wood, Chelsfield, Farnborough, Green Street Green, Crofton, and the surrounding BR5 and BR6 postcode districts as standard. Call 020 3757 6199 — we answer 24 hours a day, every day of the year including bank holidays.
What type of lock should I have fitted after a burglary?+
For uPVC and composite doors with a euro cylinder, the most important upgrade is an anti-snap cylinder rated to TS007 3-star. The snapping method is the most common forced-entry technique in Orpington and across the wider south-east, and a standard euro cylinder offers very little resistance to it. For timber doors, a 5-lever mortice deadlock to BS3621 is the standard that most home insurers require. Our technician will assess your specific door type on arrival and explain which options are suitable before any work starts.
Will my insurer pay for the emergency lock change after a break-in?+
Many home insurance policies do cover the cost of a lock change following a confirmed break-in or attempted forced entry. You will typically need to provide the crime reference number from your police report and a receipt from the locksmith detailing the work carried out and the parts fitted. We provide a written receipt as a matter of course. Contact your insurer to confirm the terms of your policy, as cover varies. We do not deal with insurers directly, but we give you everything you need to submit the claim yourself.
I am a tenant — can I get the locks changed without my landlord's permission?+
In practice, your safety takes priority, and if you are locked out or your property is insecure following a break-in, we will help you secure it immediately. However, as a tenant you are legally required to notify your landlord or letting agent and, in most tenancy agreements, to seek their approval before changing locks. If you have done so and they are unavailable in an emergency, document your attempts to contact them. Some landlords ask for a key to any new lock fitted — you should be prepared for that conversation afterwards. We do not get involved in tenancy disputes, but we can note on the receipt that the work was carried out following a break-in if that helps your records.
How is the price for a lock change after a break-in worked out?+
The final price depends on several factors: the type of door and lock mechanism involved, the number of cylinders or locks being replaced, any additional components such as handles or gearboxes, the time of day (evenings, weekends, and bank holidays are reflected in the call-out charge), and travel distance to your property. We confirm the exact price with you before any work begins — either over the phone once we understand what is involved, or on arrival after the technician has assessed the door. There are no hidden additions after the quote is agreed.
Can you change the locks on a commercial property in Orpington after a break-in?+
Yes. A commercial lock change follows the same emergency response approach as a residential call. We handle office units, retail premises, and other commercial doors across Orpington and the surrounding area. Commercial doors often use different cylinder formats or multipoint systems compared to residential properties, so when you call 020 3757 6199 it helps to describe the door type as best you can so we can confirm we have the right parts on the van before arriving. We can also supply multiple keys for different keyholders as part of the same visit.
Locked out or need a lock fixed? We are on the way.
Open 24 hours, 7 days a week · Insured, background-checked technicians · Up-front pricing
020 3757 6199