Suffolk Lock & Security Professionals, Inc., founded in 1936, is a family owned and operated business with three generations of family members on its staff proudly serving all of Long Island. Suffolk Lock & Security Professionals, Inc. is always ready when you need us. For the fastest, most reliable locksmith service on Long Island, we are available 24 hours a day, 7 days a week. We offer our customers professional lock, key and safe services at competitive prices.