Middlesbrough's
Locksmith & Property Services
Locked out, snapped key, or break-in repair? We answer the phone day or night. Non-destructive entry first and British Standard locks, with labour and any parts confirmed before work begins wherever possible. No separate call-out fee on completed jobs; out-of-hours rates apply.
- 30+ Years in Property Repairs & Maintenance
- 24/7 Locksmith Line
- Family Run Business
- Northern Housing Awards 2025 — SME of the Year
A Slater & Son has traded for over 30 years, originally as a sole trader, and incorporated as A Slater & Son Property Services Ltd in March 2025. Locksmith qualifications: Gary Slater holds the GMLUK Level 3 Award in Locksmithing and is a Guild of Master Locksmiths UK member. Company accreditations (CHAS Elite and SafeContractor) cover our building and property maintenance work.
Get a free written quote
Emergency response within 4 hours.
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Credentials
Awards, qualifications & accreditations
Awards
- Northern Housing Awards 2025 — SME of the Year
Locksmith qualifications
Held by Gary Slater personally, covering our locksmith service.
- Gary Slater — GMLUK Level 3 Award in Locksmithing
- Guild of Master Locksmiths UK Member
Company accreditations
Held by A Slater & Son Property Services Ltd for its building and property maintenance work. These schemes do not certify locksmithing. The company is Gas Safe registered (registration 587389) for gas work.
- CHAS Elite
- SafeContractor Approved
- Gas Safe Registered (587389)
Copies of all certificates are available on request before work begins.
Our specialism
24/7 Locksmith Services in Middlesbrough & Teesside
Our dedicated locksmith service covers everything from a 2am lockout to insurance-rated lock upgrades across Teesside, delivered by a trained, Guild-registered locksmith.

Emergency Locksmith
24/7 lockouts, lock changes, snapped keys and break-in repair. Non-destructive entry first, every time.

Emergency Lockouts
Home, flat, shop or van - back inside fast, no drilling where it isn't needed.

Lock Changes & Upgrades
Snap-resistant 3-star cylinders and BS3621 mortice locks fitted properly.

Break-In & Burglary Repair
Secure the property tonight - locks, frames, trim and insurance paperwork.

UPVC & Composite Doors
Snapped cylinders, failed gearboxes and multi-point strip repairs.

Landlord & Tenancy Changes
Lock changes between tenants, master-key systems, itemised invoicing.

Smart Locks & Security
Yale, Ultion Nuki and similar - fitted, configured and tested.
Beyond locksmith
Additional Property Services We Offer
The same family team also handles wider property repair and maintenance work across Teesside.

Damp Proofing
Surveys, treatment and lasting damp solutions.

Plastering
Skimming, re-skims and full re-plasters.

Plumbing
Leaks, repairs and bathroom installations.

Painting & Decorating
Interior and exterior - clean, sharp finishes.

Joinery
Doors, skirting, kitchens and bespoke fitting.

Disabled Adaptations
Grab rails, ramps, wet rooms and home access.

Property Maintenance
One trusted team for every home repair.

Landlord Maintenance
Reactive & planned works for landlords.
Where we work
Local to Middlesbrough.
On call across Teesside.
Based in TS3, we cover every corner of Teesside - usually with a van already nearby. If you can see us on the map, we can be there fast.
View all locksmith & property maintenance areasAbout us
A family business built on
craftsmanship and trust.
Gary started A Slater & Son alongside his late father over thirty years ago. Today the business proudly continues with Gary, his son and his wife at the helm - bringing the same personal dedication to every job, whether it's an emergency call-out at 2am or a full property renovation.
- One number, one family - no call centres, no middlemen.
- Skilled across the full property trade, not just one specialism.
- Tidy, respectful and on time - every visit.
- Honest quotes you can trust, in writing.
Meet the team
The faces on the van - learn more about us →
Verified reviews
Straight from our Google customers.
Every review below is pulled live from Google - no editing, no curation.
Pricing
Price List
No separate call-out fee on completed jobs. Labour charges and any required parts are confirmed before work begins wherever possible. Out-of-hours rates apply. Prices shown are starting prices and are subject to VAT. Emergency locksmith work is undertaken 24 hours.
Labour Rates
Pricing shown is for labour only; parts are priced separately.
Parts (from)
Final price depends on make/model, security grade and availability.
Gary Slater — Guild of Master Locksmiths UK member, GMLUK Level 3 Award in Locksmithing · Fully insured (£5m public liability) & DBS checked.
Common questions
Straight answers, no waffle.
Can't see what you're looking for? Send us a message or call directly.
Are you available for 24/7 emergency call-outs?+
Yes — for locksmith emergencies. Our locksmith line is open 24 hours a day, 7 days a week across Middlesbrough and Teesside on 07966 442128. Other trades are carried out by appointment during normal working hours.
Which areas of Teesside do you cover?+
We cover Middlesbrough, Stockton, Darlington, Hartlepool, Redcar, Marske, Saltburn, Thornaby and Ingleby Barwick. If you're nearby, give us a call - we travel further for larger jobs.
Are you fully insured?+
Yes — A Slater & Son Property Services Ltd is a fully insured, registered limited company (Company No. 16298499) with £5 million public liability cover on every job.
Do you provide free quotes?+
Yes. Quotes and on-site surveys are free of charge. For planned work we give a written quote before starting. For emergency locksmith call-outs there is no separate call-out fee on completed jobs, and labour plus any required parts are confirmed before work begins wherever possible. Out-of-hours rates apply.
What's your emergency call-out response time?+
For locksmith emergencies we aim to be with you within 4 hours across Middlesbrough and Teesside, day or night, and we give you an honest ETA on the phone.
Do you guarantee your work?+
Yes. Every trade is backed by our 12-month workmanship guarantee. If anything works loose, drips or needs adjusting within 12 months, we return and fix it free of charge.
Do you work to OT reports and Disabled Facilities Grants?+
Yes. We regularly work to Occupational Therapy (OT) reports and Disabled Facilities Grant (DFG) specifications, and we're happy to be described as grant-spec compliant. We provide photo evidence for the council where required.
Do you work for landlords?+
Absolutely. We handle reactive call-outs and planned maintenance for private landlords and letting agents across Teesside - one trusted team for every property.
Need it sorted today?
Call us directly - we will answer. Honest advice, fair pricing, work that lasts.
Locksmith line 24/7 · Middlesbrough TS3 7BD · Company No. 16298499
