Deadlocks — BS3621 & High-Security Locks
BS3621 British Standard deadlocks supplied and fitted for homes and businesses across the UK. Insurance-approved, anti-snap and anti-pick options available. Call us for a free quote.
Deadlock Types We Supply & Fit
We supply and fit all types of deadlocks for homes and businesses across the UK.
British Standard Deadlocks
BS3621 British Standard deadlocks — the gold standard for home security. Required by most home insurance policies. Supplied and fitted across the UK.
Anti-Snap Deadlocks
Anti-snap, anti-pick and anti-drill deadlocks for maximum security. Ideal for front doors and high-risk properties.
UPVC Door Deadlocks
Deadlocks compatible with UPVC and composite doors. We supply and fit deadlocks for all door types.
Commercial Deadlocks
Heavy-duty deadlocks for offices, shops and commercial premises. Multiple locking points and high-security cylinders.
Mortice Deadlocks
Traditional mortice deadlocks for timber doors. 5-lever and 3-lever options available. BS3621 certified options stocked.
Rim Deadlocks
Surface-mounted rim deadlocks for additional security on front and back doors. Easy to fit and highly effective.
Deadlocks FAQs
What is a deadlock?
A deadlock is a type of lock that can only be opened with a key — unlike a spring latch which can be pushed open. Deadlocks provide a much higher level of security and are required by most home insurance policies.
What is a BS3621 deadlock?
BS3621 is the British Standard for security locks. A BS3621 deadlock has been tested and certified to meet strict security requirements including anti-pick, anti-drill and anti-saw features. Most home insurance policies require BS3621 locks on external doors.
Can you fit a deadlock to my existing door?
In most cases, yes. We can fit deadlocks to timber, UPVC, composite and metal doors. Our engineers will assess your door and recommend the best deadlock solution for your property.
How much does a deadlock cost?
Deadlock prices vary depending on the type and security level. We always provide a fixed quote before starting work. Call us on 033 3305 2993 for a free consultation and quote.
Do I need a deadlock on my front door?
Yes — we strongly recommend fitting a BS3621 deadlock on all external doors. Most home insurance policies require this. A deadlock significantly increases the security of your home and acts as a strong deterrent to burglars.
What is the difference between a deadlock and a deadbolt?
A deadlock is a lock that requires a key to open from both sides. A deadbolt is a bolt that can be operated by a thumb turn on the inside and a key on the outside. Both provide excellent security — our engineers can advise on the best option for your property.
Ready to Install a Deadlock?
Call us today for a free consultation and quote on deadlock installation for your home or business.