H.I.M. Mechanical Systems

H.I.M. Mechanical Systems, Inc. is a heating, air conditioning, ventilation, heat pumps, and refrigeration contracting company serving commercial and residential customers. Our service area includes: Rhode Island, Southeastern MA (to Hyannis), North of Boston to 495, Metrowest to Worcester.

We offer free estimates on installations.

For 24-hour Emergency Services or to Schedule an Appointment, call 508-697-5000.

Air Conditioning

We offer installation and repairs on Central AC and ductless systems, featuring brands such as Carrier and Daikan.


We provide installation of heat pumps, boilers, and gas furnaces, and we repair all variety of heating systems.

Indoor Air Quality

We offer several products to improve your indoor air quality by reducing and filtering out odors and vapors, biological contaminants, and particulates.


We specialize in ventilation for commercial applications, such as kitchen exhaust systems and mechanical room ventilation.

Commercial Refrigeration

From walk-in coolers and freezer boxes to display coolers and ice makers, we can handle all of your commercial refrigeration needs.

Data Centers & Clean Rooms

Massachusetts is an ever-growing hotbed of high-tech facilities. Trust H.I.M. with your specialty HVAC requirements.


Properly-sized ductwork provides balanced air flow to your home or workspace, as well as savings in your energy bill.

Contact Us

Contact us if you have and questions about our services.