Alternate Phone# (516) 504-1120. Commercial: Technical service and executive experience in the construction and HVAC industry. An extremely qualified staff of estimators, design engineers, project managers, mechanics, and steamfitters combine to give your project the attention it deserves. In house metal fabricating, expediters and a factory trained team of maintenance technicians on call 24 hrs to offer fast response to your service calls. A communications hub links our office personnel, service vehicles, project supervisors, and executive management, guaranteeing quick and efficient response to your call. Residential: Fully trained and EPA certified technicians utilize the latest diagnostic technologies to quickly and efficiently determine the nature of your service problem. Our service contract is second to none. We recommend a spring and fall check-up and servicing every year. For emergency and after hours service, we’re available 24 hours a day.