I lost my house key, so I asked the lock company to open the door. Do I have to change the lock? Can I use the locked key again?

No need to change the lock. Unlocking companies are operating normally, there is no illegal behavior, and there is no need to change locks.

Everyone needs to go to a regular company to change the lock cylinder. When the staff comes to the door, they should check their employment certificates and identity cards, as well as the certificates of relevant departments. If we feel that it is unsafe to lose the key, we can choose to replace the lock core of the security door. Of course, then again, we probably lost the key somewhere, and left it with an acquaintance to see if we can get it back. If we lose it on the road, even if someone finds it, we don't know where you live, so it won't cause trouble to the safety of family property. Non-violent unlocking does not destroy the lock core, and the original key can be used. But for the sake of safety, it is best to replace the lock cylinder after losing the key.

If you have an idea about unlocking, you can learn about the king of unlocking in Guangdong. The company has won the praise of more than one million customers. Perfect solution to the technical problems of difficult special locks, opening ATM machines for banks such as China Bank, Dongguan Bank and China Construction Bank, and refitting thousands of security coded locks for Guangdong Sinopec Group. So you don't have to worry about unlocking.