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Non-destructive entry when possible, complete lock or cylinder replacement, installation of high-security anti-bumping cylinders. Changing only the cylinder is a 30-45 minute operation per door. The mechanical lock remains, and we only replace the inner cylinder where the key fits. The new key is completely different and won't open with the old one. This is the most economical option and the one we recommend when the lock is of good quality and in good condition. Changing the complete lock costs more and is justified when the lock is old or of low quality and we want to take advantage of the change to upgrade the security level. This operation takes 60-90 minutes per door. We work directly with several holiday rental managers in the area, coordinating with them when a tenant is inside, or accessing with a deposited key when the apartment is vacant. We send photos and video of the problem before acting. We provide a fixed quote that the owner approves via WhatsApp. After the job, we send a written report with before and after photos. We invoice digitally. For many non-resident owners, this is the first time they can manage repairs in their Spanish home without needing to fly over.

All that investment in a security cylinder loses its meaning if key copies are made freely at any local hardware store. The registered key of a security cylinder can only be duplicated at the manufacturer's official distributor by presenting the owner's card we provide upon installation. Without that card, no copy is possible. This means you control exactly how many keys exist and who has them. You'll never have the uncomfortable doubt of whether the local locksmith or a copier might have kept your key pattern for future use. Official manufacturer's warranty of 5-10 years depending on brand and model. Plus 30 days on labour. For isolated chalets, single-family homes in high-incident areas, or owners with previous experience of attempted break-ins, we recommend high-security cylinders such as Cisa Astral S, Mul-T-Lock MT5+, Tesa T80 Plus, or Mottura Champions. These raise the standard to EN1303 grade 6, adding all anti-features (bumping, picking, drilling, extraction). They come with a manufacturer's burglary insurance guarantee. This guarantee is relevant. If, despite everything, entry occurs and you can prove the cylinder was tampered with, the manufacturer covers part of the damage.

The price for copies and duplicates in Argentona typically ranges between €50 and €385. The final figure depends on the property's condition, the materials, and the time spent working. We always provide a fixed quote before starting. For apartments in blocks with neighbours, active communities, and natural surveillance, we recommend a medium-to-high security cylinder such as Tesa T80 or Cisa Astral. Effective anti-bumping, registered key (cannot be copied without your authorisation), EN1303 grade 5 certification (resistance to manipulation for years). Reasonable cost and a significant real improvement over standard. For a property on the Costa Blanca with medium risk (urbanisation with neighbours, not isolated), we recommend a medium-to-high quality anti-bumping cylinder. Brands like Tesa T80, Mottura Champions, or Cisa Astral are what we sell most. These cylinders have security pins that prevent the bumping technique — that sharp strike with a special key that opens any standard cylinder in less than 60 seconds. They come with a registered security key, which cannot be copied without authorisation at any hardware store. And they have European EN1303 certification, which guarantees resistance to manipulation for years. Their cost is reasonable, and the real security improvement is enormous.