Cosco Air Conditioning & Refrigeration: Honolulu’s HVAC Supplier Since 1961

Cosco Air Conditioning & Refrigeration in Honolulu, HI, has been a trusted name in the islands for over six decades. Founded in 1961 by Robert Cosco, this family-run business operates like an industrial supermarket, giving contractors and homeowners direct access to a huge selection of air conditioning units, parts, and supplies. With a self-service store format across four major Hawaiian islands, Cosco makes it easy for customers to browse, compare, and get what they need fast.

The company focuses on wholesale supply and special-order support for both residential and commercial clients. While they don’t offer emergency repair services, their extensive inventory and quick order processing help contractors keep projects on schedule. More than 50 employees manage 60,000 square feet of warehouse space, ensuring they can handle everything from small residential jobs to large commercial installations.

Key Products and Support

Cosco Air Conditioning & Refrigeration carries a wide range of products to meet Honolulu’s unique climate needs. Hawaii’s warm, humid weather demands reliable cooling systems, and Cosco stocks the equipment local homes and businesses rely on.

• Air conditioning units (including energy-efficient and split-system models)
• Refrigeration components and systems
• Air filters, thermostats, and ductwork supplies
• Replacement parts for most major brands
• Tools and accessories for HVAC professionals

Their shelves are stocked with items suited for island living—from systems that handle salt-air corrosion to units designed for older Honolulu homes with specific space constraints.

Areas Served Across Oahu and Beyond

Cosco serves a broad region, including:

• Honolulu HI
• East Honolulu HI
• Kaneohe HI
• Halawa HI
• Kahaluu HI

They also supply customers on neighboring islands like Molokai (Kaunakakai, Kualapuu) and Lanai (Lanai City), along with communities such as Anahola, Helemano, and Waiahole Waikane. This wide reach gives them firsthand knowledge of the housing styles, building codes, and climate challenges across Hawaii’s diverse neighborhoods.

Company History: A Family Vision

Robert Cosco started the business in 1961 with a simple idea: create an industrial supermarket where customers could see and choose products themselves. That customer-focused approach still defines Cosco Air Conditioning & Refrigeration today. Now led by Robert’s children—Bobbie Cosco (CEO), Cynthia Tavares (President), and Matt Cosco (VP-Sales)—the company has grown into one of Hawaii’s most respected HVAC suppliers.

What sets them apart is their unique self-service format. As Matt Cosco notes, “Customers actually can see what they’re buying. They’re exposed to everything on the shelves.” This transparency, combined with fast special-order processing, helps contractors and property owners make informed decisions without delay.

Leadership with Local Roots

The Cosco family is deeply embedded in Hawaii’s business community. With locations on four major islands, they understand local needs—from the cooling demands of high-rise condos in Honolulu to the ventilation requirements of rural homes in Kaneohe. Their team doesn’t just sell products; they share practical knowledge gained through decades of serving island contractors.

What Makes Cosco Stand Out

• Self-Service Supermarket Format: Walk in, browse shelves, and compare products in person—a rare experience in wholesale supply.
• Rapid Special Orders: Known for processing urgent parts requests quickly, keeping projects moving.
• Family-Run for Over 60 Years: Consistency, personal accountability, and long-term relationships matter here.
• Vast Inventory: With 60,000 square feet of warehouse space, they stock a huge selection of AC units, filters, and parts.
• Equal Service for All: Whether you’re a large contractor or a small handyman, you get the same attention and support.

Why Honolulu Chooses Cosco Air Conditioning & Refrigeration

For contractors and property owners across Oahu, Cosco Air Conditioning & Refrigeration in Honolulu, HI, represents reliability and local expertise. Their unusual supermarket model puts control in the customer’s hands, while their deep inventory and speedy order processing reduce downtime. In a place where cooling isn’t a luxury—it’s a necessity—having a supplier that understands island homes and businesses makes all the difference. When you need HVAC parts, units, or friendly advice, Cosco has been the go-to source since 1961.

Hours of Operation:
Monday–Friday: 7:00 AM – 3:30 PM
Saturday: 8:00 AM – 12:00 PM
Sunday: Closed