In short: the lock is your door's main closing mechanism (the one with the cylinder and the key), while a deadbolt is an extra, independent locking point that reinforces the door as a second line of defence. For real security, the best setup is often both. Here is the difference and which you need in Fuengirola.
What is the main lock
The main lock is what closes your door every day: it holds the cylinder and, on better doors, several locking points (multipoint). Its security depends largely on the cylinder — a high-security anti-bump cylinder is the single most important upgrade here.
What is a deadbolt
A deadbolt is an additional locking mechanism, fitted as a second, independent point of closure. It adds a strong bolt that makes levering or forcing the door much harder, especially useful on ground-floor doors, exposed entrances or homes left empty.
Which do you need?
- For everyday security: a high-security cylinder in the main lock is the priority.
- For extra protection: add a deadbolt as a second locking point — a very cost-effective upgrade.
- Best combination: anti-bump cylinder + additional deadbolt, so an intruder faces two independent barriers.
Frequently asked questions
What is the difference between a deadbolt and a lock?
The main lock is the door’s primary closing mechanism, usually with the cylinder. A deadbolt is an additional, independent locking point that reinforces the door.
Do I need both?
For extra security, yes: a high-security cylinder plus an additional deadbolt makes forcing the door much harder.
Can a deadbolt be fitted to any door?
In most cases yes, as an add-on second locking point. I advise you on the right model for your door and frame.
Want to reinforce your door in Fuengirola?
I'm Santiago, an APFC-certified locksmith in Fuengirola and Mijas. I fit high-security cylinders and additional deadbolts with a fixed price and an invoice, every day from 8am to midnight. Message me on WhatsApp and I will advise you on the best setup for your door.
Need a locksmith in Fuengirola?
Santiago answers in person, with a closed quote before starting.
