Steve's Plumbing Service

Established in 1961 by Robert Cosco, this versatile family business has grown into one of Hawaii's most highly-respected and resourceful industry specialty suppliers. Now located on 4 of the major islands,Cosco has more than 50 employees and 60,000 square feet of warehouse space.When Robert Cosco established the family company over 60 years ago, he envisioned it as "an industrial supermarket," a philosophy which has carried over into the present-day operations, supervised by his children: daughters Bobbie Cosco, CEO; and Cynthia Tavares, President; and son Matt Cosco, VP-Sales."Dad designed a self-service store," says former COSCO CEO, Bobbie Cosco. It was patterned after the modern grocery store and referred to as "an industrial supermarket." That is one of the many things that make COSCO unique. It just doesn't look or feel like a wholesale store. It has a friendly, welcoming atmosphere, well-stocked shelves, and a staff that knows the company's products and understands the needs of its customers.

When Hawaiian residents need high-quality and friendly plumbing and air conditioning services, they know to trust a local. That’s why they turn to Steve’s Plumbing & A/C Service. With a presence on Big Island, Oahu, Kauai and Maui, we have helped numerous customers throughout the islands get the solution they need, no matter the size or scope of their project. We assist with minor issues to major projects, even including sewer repair, air conditioning installation, and even new construction. We do all of this while never swaying from our reputation for outstanding service and total customer satisfaction. When the project demands the best, make the right choice and turn to the pros at Steve’s Plumbing & A/C Service.