Cornerstone installs, repairs and provides preventive maintenance service for commercial, State and Federal facilities. Our well-equipped and knowledgeable Technicians will provide efficient team supported care to minimize down time, eliminate call backs, and reduce labor cost. All technicians utilize smart phone technology to serve you better. We are a licensed air conditioning contractor in the State of Hawaii, a small business, a graduate of certified Federal 8(a) Small Disadvantage Business program. Cornerstone installs, repairs and provides preventive maintenance service for commercial, State and Federal facilities.
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