Hours Of Operations ADT New York Mastic Beach ADT Hours of Operation and Locations in Mastic Beach, NY 4.7 - 140 votes 1 Locations in Mastic Beach www.adt.com ADT Hours Category: Home & Garden ADT - Mastic Beach, NY 11951 630 Mastic Rd(631) 729-7333 View Store Details Explore Mastic BeachView More Apparel Coach Recommend For You Stacy Furniture Build-A Bear Workshop J. C. Penney 84 Lumber A.C. Moore Arts & Crafts Adams Golf American Standard American TV & Appliance Andersen Windows & Doors Andronico's Market