uPVC door repairs, locks, handles & gearboxes in Grendon

Common lock & handle problems we fix

• Window handle snapped, stiff or won't close fully
• Multipoint lock hooks or rollers no longer catch the keeps
• Key turns but the door still opens — or the key won't turn at all
• Lost keys or moving house — cylinder needs changing
• Door handle drops, feels loose or won't lift to engage the lock

How a lock repair works

1. 1. Diagnose

   We find whether the fault is the cylinder, gearbox, full multipoint strip or door alignment.

2. 2. Replace

   Worn parts are swapped with matched hardware — including anti-snap cylinders if you want an upgrade.

3. 3. Test

   We adjust keeps and test every locking point so the door opens and locks smoothly.

Most lock faults are fixed by replacing a single part, not the whole door — and we carry common gearboxes and cylinders on the van.