15+
Years serving the North East
1 hr
Typical emergency response
12 mo
Guarantee on parts & labour
24/7
DBS-checked, insured engineers
The full range
Most modern doors rely on a multi-point UPVC locking mechanism, and a worn gearbox or dropped door is one of the most common reasons locks start to stick or fail. We supply and fit anti-snap, insurance-approved UPVC locks for doors and windows, matched to your existing setup.
Whether a lock has failed, you've moved into a new property, or you simply want stronger protection, we replace domestic and commercial locks with British Standard and insurance-approved hardware, fitted correctly the first time.
Not every lock problem needs a full replacement. Our engineers diagnose sticking cylinders, snapped keys, worn gearboxes and misaligned latches on site, and repair what can genuinely be repaired before recommending anything more.
Cam locks secure everything from post boxes and cabinets to garden gates and cupboards. When one wears out or a key is lost, we measure, source and fit a matching replacement so the fixture works as it should again.
Many properties across Northumberland and Tyne and Wear still have traditional mortice or rim locks fitted. We replace these like-for-like or upgrade them to a more secure British Standard equivalent, without altering the door itself.
Stiff handles, windows that won't lock, or a hinge that's worked loose are usually mechanical faults rather than a sign you need a new window. We repair and adjust UPVC window hardware so it locks properly and stays weathertight.
A dropped door or a loose handle is often the real cause of a lock that feels stiff or won't engage. We replace worn hinges and handles on doors and windows, which frequently solves locking problems without touching the lock itself.
An old or damaged letterbox is a genuine weak point for both security and draughts. We fit secure, draught-sealed replacement letterboxes designed to work properly with your existing door.
A door that's dropped on its hinges will strain its locking mechanism every time it's used, eventually causing it to fail. We realign and adjust doors so the lock engages smoothly and the mechanism isn't put under unnecessary strain.
Garages and outbuildings are often overlooked until the lock seizes or a break-in attempt leaves it damaged. We repair and replace garage door locks and mechanisms to keep tools, vehicles and equipment properly secured.
Not sure what you need?
You don't need to diagnose the problem yourself. Describe what's going on — a stiff key, a door that won't lock, a lock that's failed completely — and we'll talk you through whether it needs a repair, a replacement, or something else entirely, with an honest price before we start any work.
Get a free quote
FAQs
Yes, we carry out locksmith work for homeowners, landlords and businesses across Northumberland and Tyne and Wear.
In most cases, yes. We carry a wide range of cylinders, mechanisms and fittings, and if we don't have an exact match on the van we'll source one quickly.
Yes — every service on this page is also available as an emergency callout, 24 hours a day. See your local area page for details, or call us directly.
Yes, every service we carry out is backed by a 12-month guarantee on parts and labour.
Strongs Locksmiths
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