Home › Top 4 Locksmith in Signal Hill, California Find best Locksmith in Signal Hill, California, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Pro Lock Systems US, Signal Hill, CA 907552698 Junipero Ave #112 Minute Key - Signal Hill (CA 90755) US, Signal Hill, CA 90755751 E Spring St Broadway Locksmith Shop US, Signal Hill, CA 907553199 E Pacific Coast Hwy #103 KeyMe Locksmiths - Signal Hill (CA 90755) US, Signal Hill, CA 907551600 E Willow St