Lock & Security Problems

Lock Issues

Every lock problem we see - jammed, stiff, won't turn, won't engage, snapped key. Diagnostics, DIY checks and same-day repair across Cornwall.

Lock Issues

Composite Door Won't Lock

Your composite door won't lock? It's usually a misaligned keep, seized gearbox or dropped door - here's how to diagnose it in 5 minutes.

Lock Issues

Composite Door Lock Stiff

A stiff composite door lock is an early warning sign - catch it now and you avoid a £250 gearbox replacement later.

Lock Issues

Composite Door Key Won't Turn

Key won't turn in your composite door? Don't force it - here's how to diagnose the cylinder, gearbox and alignment in the right order.

Lock Issues

Composite Door Lock Jammed

Composite door lock jammed shut or open? Stop, don't force it, and follow this diagnostic sequence to avoid a snapped mechanism.

Lock Issues

Composite Door Lock Keeps Sticking

A lock that keeps sticking is a mechanism nearing failure. Here's what causes recurring stickiness and how to fix it for good.

Lock Issues

Composite Door Lock Replacement

Composite door lock replacement - what to expect, what it costs, and why you shouldn't wait until the mechanism has already failed.

Lock Issues

Multi-Point Lock Not Working

Multi-point lock not working means one or more of the hooks, bolts or rollers has stopped engaging. Here's how to identify which and what it means.

Lock Issues

Door Handle Lifts But Won't Lock

Handle lifts, hooks engage, but the key won't turn to lock? That's a cylinder cam or gearbox pawl problem - here's the diagnostic.

Lock Issues

Key Snapped in Composite Door Lock

Snapped a key in your composite door lock? Don't push it in - here's how to extract it and when to call for help.

Lock Issues

Lock Barrel Replacement

Lock barrel (Euro cylinder) replacement - sizes, standards, costs and why 3-star is now the sensible spec for every home.

Lock Issues

Euro Cylinder Replacement

The Euro cylinder is the industry-standard lock format used on every UK composite door. Here's how replacement, sizing and standards work.

Lock Issues

Anti-Snap Lock Upgrade

Anti-snap lock upgrade - why lock snapping is the burglar's method of choice and why a 3-star cylinder ends the risk.

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