Hours Of Operations Master Lock California Signal Hill 90755 Master Lock Hours of Operation and Location in Signal Hill, CA 90755 4.1 - 128 votes 2325 Redondo Ave, Signal Hill, CA 90755 (562) 566-4256 Get Directions Master Lock Hours Category: Home & Garden Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore Signal HillView More Apparel CostcoRoss Dress for LessH & MCoachDeb Sports CostcoTargetVansBlades Jewelry Costco Recommend For You Omega Bob's Stores Banfield Pet Hospital Fresh & Easy A Nails A+ Roofing Honeywell A & A Locksmith Geek Squad Solutions Incorporated