About this service
A British Standard BS3621 night latch is one of the simplest, most reliable security devices for wooden front doors — and the lock most UK home insurers require on the main entry. We supply and fit Yale, ERA, Ingersoll and Chubb night latches to BS3621.
What's included
- BS3621 insurance-approved
- Auto-deadlocking models available
- Yale, ERA, Ingersoll, Chubb supplied
- Tidy installation with minimal disruption
- From £139 fitted
Our process
Survey
Door thickness and existing hardware checked.
Mark
Template marking for a clean cylinder hole.
Fit
Body and cylinder fitted, strike plate aligned.
Test
Multiple key cycles, latch and deadlock tested.
Where we cover
We provide night latch installation across West London, Berkshire and Buckinghamshire, including:

