About Us Mr. Rekey is America's largest residential locksmith service provider. Trusted, bonded and insured, Mr. Rekey has rekeyed over 3 million locks while servicing 20 markets nationwide since 1995. Our technicians help residents with residential lockouts, home lock repairs, garage door locks and remotes, keypad installation, patio door and window locks, as well as padlocks and emergency lockouts. Every job comes with a 100% lifetime satisfaction guarantee.