Imperial Sprinkler Supply has expanded on our commitment to industry leading customer service, competitive pricing and broad product line offering in the San Diego area. We are pleased to announce opening of our new branch in Lakeside, Ca. The new branch is location is 12365 MAPLEVIEW ST. LAKESIDE,CA 92040. Phone: 619.873.3090. It will be our pleasure to serve you at our new location with the same quality and service you have come to expect of us. We hope to see you soon.