From
New London House, EC36 London Street, City of London
To
St Paul'sSt Paul's, Mansion House
Job
Lock changefrom £85

Lock change · EC3 dispatch
Cylinders, mortices and multipoints changed to a standard that holds. In St Paul's that usually means office glass on cathedral-adjacent heritage, reached from New London House on London Street, EC3R 7AD.
From
New London House, EC36 London Street, City of London
To
St Paul'sSt Paul's, Mansion House
Job
Lock changefrom £85
We write BS 3621, TS007, PAS 24, BS EN 1303 when we have fitted or tested them. A "high security" unbranded barrel bought to look the part is how the next attacker gets in.
Insurance language in the Square Mile and its neighbours still leans on BS 3621 for certain final exits and TS007 for replacement euros. If your schedule says otherwise, send it.
From-price for this service starts at £85 plus the hour band. The quote you approve on Paternoster Square is the invoice. No hidden drill.
First: measure. Cylinder length, cam, offset, and the door thickness before we pull the old lock. In St Paul's that is done against office glass and office readers.
Next: match the grade. Insurance and door type decide BS 3621, TS007, or a commercial oval. In St Paul's that is done against office glass and office readers.
Finally: fit and hand keys. Operation tested, old keys destroyed on request, receipt left. In St Paul's that is done against office glass and office readers.
Standards we actually name on invoices from this patch include PAS 24. We do not print a kitemark we did not fit. If your insurance schedule is tighter than the barrel in the door, that becomes a lock change on the same visit if you want it quoted as a separate line.

voice
Say St Paul's, Paternoster Square, the floor, the door type if you know it (office glass), and who has the right to enter. Say whether security is on a desk. Say whether it is same-day City changes.
Do not say "near Mansion House" as the only address. Do say the intercom label. Do send a forend photo if the street is quiet enough.
We will tell you if the job is actually Lock Change and Repair or a sibling service. Getting the noun right is how you get the right bag out of the van.
portfolio
Occupiers who hold a St Paul's door often hold another in Cheapside. We can chart those on a master key visit rather than as three panics.
The EC district pages (EC3, EC2, EC4, EC1) exist for postcode searches. Neighbourhood pages exist for people who know the street.
Privacy and cookies are on privacy and cookies. Maps on the contact page load only after you opt in. We do not invent star ratings.
hardware
St Paul's doors in our notes: stone-set timber; retail shutters; office glass. Cylinders and cases: period mortices; retail multipoints; office euros. Access control around them: retail staff doors; office readers; service-yard intercoms.
For lock change and repair we additionally carry TS007 3-star cylinders, BS 3621 cases, multipoint gearboxes. Failure modes that match this pair: worn plug; snapped cam.
If the reader is the failure rather than the cylinder, pivot to access control. If the opening is damaged, pivot to burglary repair. If you simply need the suite open, office lockout may be the tighter description.
open
St Paul's calls for lock change and repair tend to start on Paternoster Square or New Change, not on a generic London map pin. The working landmark is St Paul's Cathedral. The working station is Mansion House. CITY OF LONDON LOCKSMITH1 LTD dispatches from EC3R and treats this as a Square Mile run, with heritage fabric already priced into how long the last hundred metres take.
The door in front of you is likely office glass. The ironmongery is likely office euros. The failure that got you here is often keep torn from frame. We confirm lawful access before a pick enters the keyway: occupier, director, nominated facilities lead, or written authority from the agent. A name on a doorbell in St Paul's is not enough.
Non-destructive entry is the default on this patch, as it is on lock change and repair city-wide. Drilling is a named decision on the pavement. Read price bands if you can; night and Sunday supplements are written, not invented after the door is open.
constraint
heritage fabric is the St Paul's version of "the van is close". We walk kits. Bollards, coaches and the ring of steel are normal.
Typical local job: service-yard padlatches. Typical local housing or occupier mix: small residential over retail.
Stations staff mention on the call: St Paul's, Mansion House, City Thameslink. They are not parking. They are how we know which court you mean.
after
You should leave with a working key or a reset, a written figure, and a note of the stamp on office euros. Old keys can be destroyed on request.
If staff still share one key between a floor, master key systems is the planned conversation. If the closer slammed the latch, the closer is part of the job, not a mystery for next week.
The legal entity is CITY OF LONDON LOCKSMITH1 LTD, New London House, 6 London Street, London EC3R 7AD. Contact and map after cookie consent. About the company for the boring facts.
law
Event days change vehicle access. Call with the door, not with a cathedral photograph.
We record who instructed the open. Neighbouring suites in cathedral-adjacent heritage look identical after midnight. St Paul's Cathedral is a meeting point, not a proof of tenancy.
CITY OF LONDON LOCKSMITH1 LTD will wait for ID rather than rush a wrong door on New Change. That is slower than a cowboy and cheaper than a complaint.
night
Tourists gone; retail closed; office cleaners still in Paternoster.
Timing band for this service: same-day City changes. This is first-ring from London Street, still subject to the constraint on the kerb.
WhatsApp +44 7895 673226 accepts a photo of the forend if you are safe to take one. The phone remains 020 3371 1246. Company number 11001390 sits on the invoice.
Call the EC3 yard. We quote at the door after we see the lock.