This year marks the 56th anniversary of the Dorvin D. Leis Company. Founded in 1961 in California, Dorvin D. Leis Co., Inc. (DDL) shifted its focus to Hawaii in 1967 and has grown into Hawaii’s leading Mechanical Contractor with offices throughout the state and in Guam. DDL is a full-service Mechanical Contractor self-performing the installation of Plumbing, HVAC, Sheet Metal, Fire Protection/Fire Sprinkler and Temperature Controls/Energy Management systems across the entire spectrum of construction projects. Our Service and Warranty Department is well established and prepared to provide post-construction services. The Special Projects Division handles the most difficult and challenging projects giving DDL the most complete mechanical contracting company in the entire Pacific Region.

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