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Damage-free opening when possible, full lock or cylinder replacement, installation of high-security anti-bumping cylinders. Changing just the cylinder is a 30-45 minute job per door. The mechanical lock stays, and we only replace the inner cylinder where the key fits. The new key is completely different and won't work with the old one. It's the most economical option and what we recommend when the lock is good quality and in good condition. A full lock change costs more and is justified when the lock is old or of low quality, and we want to take the opportunity to upgrade the security level. The job takes 60-90 minutes per door. We work directly with several holiday rental managers in the area, coordinating with them when a tenant is present, or accessing with a deposited key when the flat is empty. We send photos and videos of the issue 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 at their Spanish home without taking a flight.

All that investment in a security cylinder is pointless if key copies can be freely made at any local hardware store. The registered key for a security cylinder can only be duplicated at the manufacturer's official distributor by presenting the owner card we provide upon installation. Without that card, no copy is possible. This means you have exact control over how many keys exist and who has them. You'll never have the uncomfortable doubt that a local locksmith or copy shop might have kept a record of your key pattern for future use. Manufacturer's official warranty 5-10 years depending on brand and model. Plus 30 days on labour. For isolated chalets, detached houses in high-risk areas, or owners with previous experience of break-in attempts, we recommend high-security cylinders like Cisa Astral S, Mul-T-Lock MT5+, Tesa T80 Plus, or Mottura Champions. These achieve EN1303 grade 6, with all anti-features (bumping, picking, drilling, extraction). They come with the manufacturer's burglary insurance guarantee. This guarantee is relevant. If, despite everything, someone breaks in and you can prove the cylinder was tampered with, the manufacturer covers part of the damage.

The price for copies and duplicates in Premià de Mar typically ranges from €50 to €385. The final amount depends on the property's condition, materials, and labour time. We always provide a fixed quote before starting. For apartments in blocks with neighbours, an active community, and natural surveillance, we recommend mid-to-high security cylinders like 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 (a residential area with neighbours, not isolated), we recommend a mid-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 blow with a special key that opens any standard cylinder in under 60 seconds. They use a registered security key, which cannot be copied at any hardware store without authorisation. They also have European EN1303 certification, guaranteeing resistance to manipulation for years. Their cost is reasonable, and the real security improvement is huge.