Locksmiths can only open locks on property that you own. If you understand how locksmiths check property, you can be prepared to have the right documentation you need available. A photo ID card or an invoice with an address that matches another photo ID may be enough for some locksmiths to open a residential home. Some locksmiths can obtain property tax records to verify ownership.
If you rent, it could be more complicated, as you may have to call the landlord to get permission to unlock the property. Be sure to ask what type of proof of ownership you will need to submit before sending the technician to your location. You must have a locksmith's license to repair, repair, install, inspect, and open and close locks by mechanical means.