Window & Patio Door Locks

A window that won't lock or a patio door that sticks is an easy way in for a burglar. A LockSub locksmith can repair or replace window locks, handles and mechanisms, and sliding, patio and French door locks.

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3 years' trading history minimum

Public liability insurance

Proven customer satisfaction

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Common window and patio door problems

A window handle spins or won't lock
Lost keys for locking window handles
A sliding patio door won't latch or lifts off its track
French door shoot bolts or multipoint lock have failed
Windows with no locks at all

How we solve it

Your locksmith will find out whether it's the handle, the gearbox, the keeps or the alignment, then repair or replace the part. Where a lock is old or weak they can fit a modern, keyed lock suited to the window or door.

How your locksmith helps

Step 1
Diagnose
The handle, mechanism and alignment are checked.
Step 2
Repair or replace
Faulty parts are fixed or swapped for matching ones.
Step 3
Test
Every window and door is checked so it locks smoothly.

Why choose LockSub

uPVC, aluminium and timber windows
Sliding, patio and French doors
Lockable window handles
Price agreed before work starts
Every locksmith ID-checked and insured
Rated 4.8/5 on Trustpilot