From
New London House, EC36 London Street, City of London
To
Tower HillTower Hill, Tower Gateway
Job
Lock changefrom £85

Lock change · EC3 dispatch
Cylinders, mortices and multipoints changed to a standard that holds. In Tower Hill that usually means station-adjacent steel on insurance offices, reached from New London House on London Street, EC3R 7AD.
From
New London House, EC36 London Street, City of London
To
Tower HillTower Hill, Tower Gateway
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 Trinity Square is the invoice. No hidden drill.
Tower Hill doors in our notes: office timber and glass; station-adjacent steel; hotel and serviced office mixes. Cylinders and cases: euros on London Street; mortices on older insurance halls; hotel-style overrides. Access control around them: serviced-office readers; hotel back-of-house; station-side plant.
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.

voice
Say Tower Hill, Trinity Square, the floor, the door type if you know it (station-adjacent steel), and who has the right to enter. Say whether security is on a desk. Say whether it is planned multi-door runs.
Do not say "near Tower Gateway" 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 Tower Hill door often hold another in Monument. 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.
open
Tower Hill calls for lock change and repair tend to start on Trinity Square or Trinity Square, not on a generic London map pin. The working landmark is Fenchurch Street station. The working station is Tower Gateway. CITY OF LONDON LOCKSMITH1 LTD dispatches from EC3R and treats this as a Square Mile run, with Tower event closures already priced into how long the last hundred metres take.
The door in front of you is likely station-adjacent steel. The ironmongery is likely hotel-style overrides. 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 Tower Hill 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.
stock
insurance offices dominates the Tower Hill mix. That is why TS007 3-star cylinders shows up on this job more often than a suburban nightlatch. We keep screws and shields on the van because local office lockouts is not a rare event here.
If you can see New London House you are on our street. Still call. Do not assume someone is already downstairs. If you only say "Tower Hill" we will still come; if you say Trinity Square and the intercom number we will stand in the right court.
Heritage or campus rules on this patch: This is home. We still check ID. Neighbours on London Street are not a blanket authority. Related openings live on locksmith work in Tower Hill and on areas covered.
night
Tower floodlights; Fenchurch empties; London Street is our quiet yard street.
Timing band for this service: planned multi-door runs. 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.
grid
From Tower Hill we also write this service against Lock change in Monument, Lock change in Aldgate, Lock change in Leadenhall, Lock change in Tower Hamlets.
Other jobs we actually do on this patch: Emergency locksmith in Tower Hill, Commercial locksmith in Tower Hill, Burglary repair in Tower Hill.
The full service list and area list exist so search engines and facilities teams land on a street, not a blob called London.
law
This is home. We still check ID. Neighbours on London Street are not a blanket authority.
We record who instructed the open. Neighbouring suites in insurance offices look identical after midnight. Fenchurch Street station 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 Trinity Square. That is slower than a cowboy and cheaper than a complaint.
method
First: measure. Cylinder length, cam, offset, and the door thickness before we pull the old lock. In Tower Hill that is done against station-adjacent steel and hotel back-of-house.
Next: match the grade. Insurance and door type decide BS 3621, TS007, or a commercial oval. In Tower Hill that is done against station-adjacent steel and hotel back-of-house.
Finally: fit and hand keys. Operation tested, old keys destroyed on request, receipt left. In Tower Hill that is done against station-adjacent steel and hotel back-of-house.
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.
Call the EC3 yard. We quote at the door after we see the lock.