At 24/7 Lightning Locksmith Chicago, we have been a locksmith in Chicago service for years and have a longstanding reputation for quality, dependability, and professionalism. We are a locksmith company that provides fast response time to any residential or commercial property where you need quick installation of the most advanced security lock systems and hardware. At 24/7 Lightning Locksmith Chicago, our master technicians are all certified professionals in locksmithing. We also offer Chicago lock change, locksmith installation, lock repairs and services, commercial & residential lockouts, rekeying locks, and key duplication. We ensure to offer fast and affordable solutions to our clients and provide free estimates for all our services. We have knowledgeable locksmiths who provide local locksmith services anywhere in Chicago on time. Our locksmith service is extremely fast, as our technicians are all experts in the field, so there's nothing that they can't handle with ease. During the process of installing locks or rekeying locks, we still ensure they're in working order with our damage prevention measures.