The Dorvin D. Leis Company, Inc. (DDL) is the largest mechanical contractor in the State of Hawaii. We are a full service mechanical contractor encompassing the entire spectrum of new construction for residential homes, condominiums, resorts, light commercial projects, high-rise complexes, schools, and hospitals across the Hawaiian Islands. Our construction has also included state, county, and federal projects including military facilities.

With Hawaii's tropical climate, DDL seeks to provide thermal comfort, acceptable indoor air quality, and reasonable installation, operation, and maintenance costs for all HVAC systems. DDL provides mechanical services for both small and large projects and has worked in a variety of settings including residential high rises, townhouses, hospitals, hotels, schools, office buildings, laboratories and many others. In each case, work and services were customized to the needs of the customer. We are able to work on a wide range of projects from large fast paced multi-million dollar projects to simple repairs.

At DDL, we provide mechanical service for all systems big or small, whether the service needed is major infrastructure or minor work. We're your one stop shop for single source solutions for Air Conditioning (HVAC/R) and Plumbing. We offer flexibility for inspection, time and materials, full labor service, and full coverage service contracts. The service department is comprised of dependable, knowledgeable, and skilled technicians who pledge to solve your problems. Our technicians are committed to providing emergency service and repair work for any mechanical building systems problems.

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