Key won't turn in the lock: causes and fixes in Granollers
Resumen rápido
A key that won't turn is usually a dry cylinder or a bolt rubbing the frame.
¿Qué está pasando?
When a key stops turning, the issue is usually inside the euro cylinder.
Causas más probables
Dry or dirty cylinder
altaDust and lack of lubrication jam the pins.
Misaligned bolt
mediaThe door has shifted and the bolt no longer enters straight.
Bad key copy
mediaA cheap copy wears the cylinder in months.
Worn old cylinder
mediaOver 15 years. Also bumping risk.
Pasos de diagnóstico
- 1
Try the original key
If you have the factory key, use that.
- 2
Lubricate with graphite powder
Never use WD-40: it attracts dust.
⚠ Parada de seguridad: No oil or kitchen grease. - 3
Check alignment
See if the bolt enters centred in the strike plate.
- 4
If the key won't enter, stop
Don't force it: it can break inside.
⚠ Parada de seguridad: Forcing = broken key inside.
Cuándo llamar a un profesional
If the key won't budge at all, call a locksmith.
Coste orientativo en Granollers
60–220 €
Opening or standard cylinder swap.
Contexto local · Granollers
In Granollers, Tesa T60 and Lince C5 are most common.
Granollers is the capital of Vallès Oriental and mixes a historic centre with recent residential estates. In the centre (Sant Esteve, Sant Miquel) we work on 1950s–70s buildings with tight inner courtyards and the usual condensation damp on flat roofs — we apply EPDM membranes and humidity-controlled vents. In Can Bassa and Can Mònic, well-finished new-builds drive demand for personalisation: bespoke furniture, fronts, shower screens. We coordinate often with local building managers. Excellent access via AP-7 and C-17.
- Comarca: Vallès Oriental
- Población: 62.475 hab.
- Parque de vivienda predominante: piso-moderno
- Año medio de construcción: 1976
- Códigos postales: 08400, 08401, 08402
Capital del Vallès Oriental, con centro denso y barrios residenciales en Can Bassa y Sant Miquel.
Preguntas frecuentes
Can I change the cylinder myself?
Yes, if you know the exact size.
What if I lost the keys?
Change the cylinder for safety.
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Diagnóstico y presupuesto en Granollers normalmente el mismo día.
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