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Replacing only the cylinder is a 30-45 minute job per door. The mechanical lock remains, and we replace only the interior cylinder where the key fits. The new key is completely different and won't open with the old one. It's the most economical option and what we recommend when the lock is of good quality and in good condition. Replacing the entire lock costs more and is justified when the lock is old or of low quality and we want to take the opportunity to upgrade security. The job takes 60-90 minutes per door. When a customer calls us for an emergency (keys left inside, lost key, lock jammed), we first assess if non-destructive opening is possible. Most standard locks can be opened with professional techniques (lock picking, impressioning, bolt manipulation) in 15-30 minutes without damaging the cylinder. This saves the customer the cost of replacing the entire lock. For high-end anti-bumping cylinders, non-destructive opening may not be possible, and the only solution is to drill the cylinder and replace it, which is more expensive but leaves the door as new with a reinforced security cylinder. Every Monday, we handle repair requests for flats that have been closed for three months. The problems here are not the same as in other cities.

Official manufacturer warranty 5-10 years depending on brand and model. Plus 30 days on labour. For detached houses, single-family homes in high-risk 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 upgrade the security rating to EN1303 grade 6 and include all anti-tamper features (bumping, picking, drilling, extraction). They come with the manufacturer's burglary insurance warranty. This warranty is relevant. If, despite these measures, a break-in occurs and you can prove the cylinder was tampered with, the manufacturer covers part of the damage. All this investment in a security cylinder becomes pointless if key copies can be made freely at any hardware store. The registered key for a security cylinder can only be duplicated at the official manufacturer's distributor by presenting the owner's card provided upon installation. Without this card, no copies can be made. This means you control exactly how many keys exist and who has them. You'll never have the uncomfortable doubt of whether a local locksmith or a copy shop has kept a template of your key for future use.

The price for copies and duplicates in Sant Quirze del Vallès typically ranges from €50 to €385. The final amount depends on the property's condition, materials used, and labour time. We always provide a fixed quote before starting. For apartments in buildings 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 tampering for years). Reasonable cost and a significant real improvement over standard options. 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 our bestsellers. These cylinders have security pins that prevent the bumping technique, that sharp tap with a special key that opens any standard cylinder in under 60 seconds. They come with a registered security key, which cannot be copied without authorisation at any hardware store. They also have European EN1303 certification, guaranteeing resistance to tampering for years. Their cost is reasonable, and the real security improvement is substantial.