What is a 5 Lever Mortice Lock?

What is a 5 Lever Mortice Lock?

A 5 lever mortice lock is a high-security lock commonly fitted into wooden doors. Unlike standard locks, it uses five internal levers to control the bolt, making it more resistant to picking and forced entry. Often required by home insurance providers, these locks meet strict British Standards and are recommended for front and back doors. In this guide, we explain how they work, where they’re used, and why they’re trusted for home security.