Patio Door Lock Services
A full range of patio door lock services — from emergency opening to full security upgrades.
Sliding Patio Door Locks
Full lock replacement for sliding UPVC and aluminium patio doors. We carry parts for all major brands and can repair or replace on the same visit.
French Patio Door Locks
Multipoint lock replacement for French patio doors. We fix all faults including dropped doors, misaligned keeps and broken gearboxes.
Anti-Lift Devices
Anti-lift bolts and security pins fitted to prevent patio doors being lifted off their tracks — a common burglary technique.
Security Bolts
Additional security bolts fitted to patio doors for extra protection. Ideal for ground-floor and rear-facing patio doors.
Patio Door Handles
Broken or stiff patio door handle? We supply and fit replacement handles for all major patio door brands on the same visit.
Cylinder Replacement
Euro cylinder replacement for patio doors. We carry anti-snap, anti-pick and anti-drill cylinders from all major manufacturers.
Emergency Opening
Locked out of your patio door? Our engineers can open all patio door types without damage. Available 24/7 across London and the UK.
Full Security Upgrade
Upgrade your patio door security with high-security locks, anti-lift devices and security bolts — all fitted in one visit.
Patio Door Security Specialists
Patio doors are a common entry point for burglars if not properly secured. Our engineers specialise in replacing and upgrading locks on all types of patio doors, including sliding UPVC patio doors, aluminium patio doors and French patio doors.
We carry a wide range of patio door locks and can upgrade your existing locks to high-security alternatives that meet insurance requirements. We also fit additional security bolts and anti-lift devices for maximum protection.
Lock snapping is a common method of forced entry on patio doors. When we replace your patio door lock, we always recommend upgrading to a TS007 3-star anti-snap cylinder for maximum security.
Protect Against Common Patio Door Attacks
Patio Door Lock Not Working?
Call us now for a free diagnosis. We carry parts for all major patio door brands and can fix most faults on the same visit.
033 3305 2993Get a Free QuotePatio Door Brands We Cover
Don't see your brand? Call us — we almost certainly cover it.
Patio Door Lock FAQs
What types of patio door locks do you replace?
We replace locks on all types of patio doors including sliding UPVC patio doors, aluminium patio doors, French patio doors and bi-fold doors. We carry parts for all major brands on every van.
How do I know if my patio door lock needs replacing?
Common signs include: the door won't lock or unlock, the handle is stiff or difficult to operate, the key turns but nothing happens, the door won't close properly, or the lock has been damaged in a break-in attempt.
Can you replace my patio door lock on the same visit?
Yes — in most cases we can replace your patio door lock on the same visit. We carry gearboxes, cylinders and handles for all major patio door brands on every van.
Are patio doors a security risk?
Patio doors can be a weak point in your home security if not properly secured. Common vulnerabilities include the door being lifted off its tracks, the lock being forced, or the cylinder being snapped. We can advise on the best security upgrades for your patio door.
How much does patio door lock replacement cost?
Patio door lock replacement costs vary depending on the fault and the parts required. Cylinder replacements start from £49. Full gearbox replacements start from £89. We always provide a fixed quote before starting work.
Do you offer a guarantee on patio door lock replacement?
Yes — all our patio door lock replacements come with a 6-month guarantee on parts and labour. We also provide free advice on all types of patio door security.
Patio Door Lock Broken or Insecure?
Call our locksmith team now for a free diagnosis and quote. Available 24/7 across London and the UK — no call-out fee.

