What if I lost my apartment keys

Open the door

There are several options.

Contact the management company or HOA. The locksmith of the housing and operational organization will help you get into the apartment. Plus: the service is usually inexpensive. Cons: it may be necessary to wait a long time, and then repair the door.
Call the Emergency Ministry on the phone 112. Rescuers not only save lives, but also help to return home. Pros: work fast. Less: they are unlikely to stand on ceremony with the safety of doors and windows.
Call industrial climbers. A great option if you live on the upper floors, and the window or balcony is ajar. Plus: property practically does not suffer. Cons: such specialists are not in all cities, their services are paid.
Apply to professionals. Scoring in the search engine "emergency opening of locks", you will find dozens of companies. Pros: Masters work around the clock, without days off and come in 30-60 minutes. They guarantee the safety of the property and open any locks. Less: expensive.
Whatever option you choose, you will need to prove that it is you who are the owner of the home. If there is a passport with a residence permit or there are a couple of neighbors who are ready to confirm your ownership, go to the third step. If housing removable, call the landlord.