Door won’t lock? Handle spins without doing anything? Key turns but the bolts don’t shoot? That’s a failed multipoint mechanism — the metal gearbox inside the edge of your uPVC or composite door — and it’s our most-fixed problem.
Most national chains will quote you for a new door. We carry every common UK gearbox brand on the van and fix it in one visit. Quoted up front, fitted properly, guaranteed.
Common uPVC mechanism faults we repair
- Lift handle won’t lift — internal lever arm snapped or seized.
- Handle lifts but key won’t turn — cylinder cam jammed against the gearbox.
- Lifting handle but no bolts shooting — gearbox internal gears stripped.
- Bolts shoot but won’t retract — cassette spring failed, door stays locked.
- Handle floppy / loose / drops — internal spring broken or spindle worn.
- Door slamming open even when locked — keeps misaligned, hooks not engaging.
Brands we carry on the van
Yale, Era, Avocet, Maco, Mila, Fuhr, Saracen, GU, Roto, Lockmaster, Fullex, ASEC. If your door has it, we probably stock it.
How quickly can the door be working again?
Same day in almost every case. Most multipoint mechanism repairs take 45-60 minutes once we’ve identified the fault. The diagnosis itself is fixed price (£85 all-in) and includes the labour if you go ahead with the repair.
Common questions
My door won’t lock — is it the lock or the door?
It’s almost always the multipoint mechanism (the metal strip inside the door edge), not the cylinder lock itself. Brand new doors get this fault after 8-15 years. The mechanism wears out faster than the door does.
Can you do it the same day in Southampton?
Yes — almost always. The van carries spares for every common UK gearbox. We’re reached inside 20 minutes from base for most Southampton postcodes.
Will the door be properly secure after the repair?
Yes — we test the locking action repeatedly before leaving, check the cylinder is anti-snap (and offer to upgrade if it isn’t), and check the keeps and hinges are aligned so the door doesn’t strain the new mechanism.
What if the door won’t lock and I can’t leave the house?
Call us — this is an emergency. Most of Southampton is reached inside 20 minutes. We’ll secure the door even if a full repair has to wait for a part to come in.
Call now — Bugsy answers
Door playing up? Ring 07453 327708. Family-run, Hampshire-based, uPVC specialists. No call-out fee, no VAT surprises, quoted up front.