01
Emergency Lockout Service
Sutton lockouts from £59: non-destructive entry first, fixed price before we start, 24 hours a day.
From £59
Local engineers · Sutton & surrounding areas
Your Local Sutton Locksmith — Honest Prices, Tidy Work
From a lost key at midnight to a full lock change the day you complete on a house, Cosmo covers Sutton with DBS-checked engineers and vans stocked with British Standard locks. Fixed price before any work, every time. Call 07700 138 436.
Usually with you in 20–40 minutes in Sutton, 24 hours a day
Request a locksmith in Sutton
Name, number, address — an engineer rings you back within minutes.
Three details. We ring you straight back.
Name, number, address. A local engineer rings to confirm and tell you when he's on his way.
- 1Contact
- 2Address
DBS-checked engineers No call-out fee Non-destructive entry British Standard locks Fixed price up front 12-month guarantee
Lockouts
from £59
Lock changes
from £75
Call-out fee
none, ever
Your local team
Cosmo Locksmith — Sutton
275 High Street, SM1 1LD
07700 138 436Open 24 hours, 7 days a week, bank holidays included.
- • Lockouts from £59, lock changes from £75
- • No call-out fee — fixed price before we start
- • DBS-checked, fully insured, 12-month guarantee
Locksmith services in Sutton
Everything lock-related in Sutton. Except car keys.
Read more
02
Lock Change & Replacement
British Standard locks supplied and fitted across Sutton in one visit, keyed alike so one key does every door.
From £75
03
Burglary Repair & Boarding Up
Broken into in Sutton? Same-day boarding up, frame repair and new locks, plus a written report for your insurer.
04
uPVC & Composite Door Lock Repair
Stiff handle or a uPVC door that won't lock in Sutton? Mechanism repaired or replaced and the door realigned in one visit.
05
Moving House Lock Change
Don't inherit the previous owner's keys — Sutton lock changes fitted the day you get the keys.
06
Commercial & Security Upgrades
Smart locks, keyless entry and a free security survey for Sutton businesses and landlords.
How it works
Ring, we ring back, sorted.
- 1Ring or fill the form
Tell us what's happened and roughly where you are. We give you a fixed price and an honest arrival time.
- 2Engineer rings you back
A local DBS-checked engineer calls within minutes to confirm and tells you when he's on his way.
- 3Sorted, guaranteed
Door opened without damage or new British Standard lock fitted. Price as agreed, receipt and 12-month guarantee.
Reviews
What Sutton customers say
“Snapped the key in the lock on a Sunday morning. Out within the hour, key extracted, new cylinder fitted, and the chap even oiled the hinges while he was at it.”
Eleanor W. · Sutton · Snapped key · 5 days ago
“We'd just bought the house and wanted every lock changed. One visit, keyed alike, and a proper explanation of what BS3621 actually means for the insurance. Very reassuring.”
Graham T. · Sutton · Moving house · 2 weeks ago
“Honest to a fault — told me the lock could be repaired rather than replaced and charged accordingly. Rare these days.”
Nadia K. · Sutton · Lock repair · 3 weeks ago
We don't do car keys. Cosmo Locksmith is a home and business locksmith. For vehicle lockouts or key programming you'll want an auto locksmith.
FAQ
Questions people ask us
Can you make all my doors use one key?+
Yes. Keyed-alike cylinders mean one key for the front, back and side doors. We do it on the spot during a lock change.
Are your engineers local to Sutton?+
Yes. Our engineers are based in and around Sutton, which is how we get to you quickly. They're DBS-checked, fully insured and carry ID.
I've been burgled in Sutton — what do I do?+
Ring the police for a crime reference number, then ring us. We'll secure the property the same day, repair the door and frame, fit new locks and give you a written report for your claim.
Do you do car keys?+
No. We're a home and business locksmith and don't cut or programme vehicle keys. For a car lockout you'll want an auto locksmith.
Will you damage my door getting in?+
Almost never. Our engineers are trained in non-destructive entry and open the vast majority of locks with no damage. If a lock does have to be drilled, we tell you first and fit a new one on the spot.
Need a locksmith in Sutton? Give Cosmo a ring.
Cosmo Locksmith · Sutton · 24 hours