Lock Supply, Fitting & Security Upgrades
New locks fitted, old locks replaced, and security brought up to the standard your insurer actually requires — including British Standard BS3621 and anti-snap cylinders.
No call-out charge. Send a photo of the lock and we’ll quote before we set off.
What this covers
- Lock changes after moving, a break-up or a tenancy ending
- British Standard BS3621 locks for insurance compliance
- Anti-snap, anti-bump and anti-drill cylinder upgrades
- Rekeying so one key works several doors
- Additional deadlocks, security bolts and door chains
- Window locks and patio door locks
- Security surveys and written recommendations
Not sure whether your job fits? Ring and describe it. We’ll tell you honestly, including when it’s something you don’t need a locksmith for at all.
Where we cover
Our own locksmiths work across 6 boroughs: Southwark, Lambeth, Lewisham, Greenwich, City of London and Westminster. Outside that we arrange a vetted locksmith from our network and stay responsible for the job.
See every postcode we coverQuestions we get asked
- What lock does my home insurance actually require?
- Most UK policies covering a wooden front or back door ask for a five-lever mortice deadlock conforming to British Standard BS3621, marked with the BSI kitemark. For UPVC and composite doors it is normally a multipoint lock with a cylinder meeting TS007 three-star or Sold Secure Diamond. Check your policy wording, and if you send us a photo of the lock edge we will tell you what you currently have.
- What is lock snapping, and am I at risk?
- Lock snapping is a technique that breaks a standard euro cylinder in two at its weakest point, giving access in under a minute and leaving very little visible damage. It affects UPVC and composite doors with ordinary cylinders. An anti-snap cylinder is engineered to break in a controlled place that leaves the lock still working. If your door is UPVC and the cylinder is more than a few years old, it is worth having it checked.
- Should I change the locks when I move into a new place?
- Yes. You have no way of knowing how many keys exist or who holds them — previous tenants, builders, cleaners, an ex-partner, an estate agent. It is one of the cheapest pieces of security you will ever buy, and it is the job we are asked for most often after a move.
- Can you make one key open all my doors?
- Usually, yes. Rekeying or replacing cylinders so a single key works your front door, back door and outbuilding is straightforward on most locks, provided the lock types are compatible. It is safer than it sounds: one well-chosen key is easier to keep track of than four you keep losing.
- How long does a lock change take?
- A euro cylinder swap is typically fifteen to twenty minutes. A mortice deadlock fitted into a door that has never had one takes longer, usually an hour or more, because the door has to be cut. We tell you which of those yours is before we start.
Other things we do
Emergency & burglary
Locked out, broken in, or a lock that has failed. We attend 24 hours a day, open doors without damage wherever possible, and make your property secure before we leave.
UPVC & composite doors
Multipoint mechanisms, handles, hinges and alignment. Most UPVC doors that have stopped locking can be repaired rather than replaced, at a fraction of the cost of a new door.
Car keys & entry
Locked out of your car, lost the only key, or snapped one in the ignition. We open vehicles without damage and cut and program replacement keys at the roadside, usually for far less than a main dealer.
Commercial security
Shops, offices, blocks and managed property. Access control, master key suites, safes, and fire-escape hardware that keeps you compliant as well as secure.
Talk to a locksmith now
24 hours a day, 7 days a week, 365 days a year. You’ll speak to someone who actually does the work.