If you rent out a flat or villa in Fuengirola or Mijas, the lock on your front door is doing more work than you think. Every changeover is a new set of keys in circulation, and every lost key is a potential problem. Here is how I help holiday-let owners on the Costa del Sol keep their property secure without making life hard for guests or cleaners.
The problem with physical keys in a holiday let
Handing over a metal key works until it doesn't. Keys get copied, lost on the beach, or simply not returned. With back-to-back bookings you often can't check every key comes back, and you can't know whether a copy was made during a two-week stay.
- You can't track who still holds a working key.
- A single lost key can mean re-keying the whole lock.
- Key handovers tie you (or a keyholder) to arrival times.
Electronic locks: the smart upgrade for rentals
An electronic (smart) lock is the single best change most owners make. I fit them over your existing lock, with no building work, so the door looks the same from outside.
- Unique codes per guest — set a code for each booking and it expires at checkout.
- No key handovers — guests let themselves in, so no waiting around for late flights.
- Separate cleaner code — give your cleaning team their own access without a shared key.
- Access log — see who entered and when.
They run on batteries and warn you well before they go flat, and your normal key still works as a backup.
Don't forget the basics
Smart entry is only as strong as the lock behind it. For rentals I usually recommend a good anti-bumping, anti-snap cylinder and, on ground-floor or exposed properties, a security shield to protect the lock from forced attacks. A cheap cylinder is the weak point burglars look for.
A quick checklist for owners
- Fit a keyless smart lock for guest and cleaner access.
- Upgrade to a high-security anti-bumping cylinder.
- Add a security shield on vulnerable doors.
- Re-key immediately if a physical key is ever lost.
Securing a holiday let in Fuengirola or Mijas?
I'm Santiago, an APFC-certified locksmith covering Fuengirola, Mijas and the Costa del Sol. I advise on the right setup for your rental, fit it with no fuss and give you a fixed price before starting. Message me on WhatsApp and I'll talk you through the options.
¿Necesitas un cerrajero en Fuengirola?
Te atiende Santiago en persona, con presupuesto cerrado antes de empezar.