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Premium, Full-scale, and Customized Solutions

At Interstate Mechanical Services, we are your one-stop-shop for all your HVAC mechanical system needs in the Greater Boston and Rhode Island area. Our technicians can guide you on how to get the most from your heating and cooling system and make any necessary repairs. Call the piping specialists today to schedule your service or estimate!

Complete commercial and residential heating, ventilation, and air conditioning services.
Welding of all piping necessary to install a complete mechanical system.
Piping Welding
Piping and Installation
Piping & Installation
A full-service piping & installation crew to build any size system from a small house to a large high-rise.
Design and Build HVAC
We design, stamp, and build, accommodating your space while staying within your budget.
Service & Repair
24/7 emergency response service and repair shop for any commercial or residential system.
HVAC Service & Repair
Testing & Balancing
We offer full-service air & water balancing for your heating or cooling system.
Testing & Balancing for Heating and Cooling Systems

Equipment Serviced


  • Boilers

  • Furnaces

  • Heat Pumps

  • Hot Water Heaters

  • Gas Combustion

  • Oil Combustion


  • Rooftop Systems

  • Exhaust Systems

  • Kitchen Exhaust Systems

  • Modular Air Handlers

  • Fan Coils

  • Variable Air Volume Systems

  • Constant Volume Systems

  • Clean Room Systems

air conditioning

  • Chillers

  • Chill Beams

  • VRF (Variable Refrigerant Flow) System

  • Heat Pumps

  • Cooling Towers

  • Computer/Server Room

  • Ice Systems



  • Walk-ins

  • Cold Rooms

  • Deep Freezers (compound

  • systems)

  • Commercial

  • Ice Makers

  • Coolers

auto controls

  • Johnson/Metasys

  • Pneumatic controls 

  • Stand alone analog controls

Licenses & Certifications
  • Licensed pipefitters in Massachusetts and Rhode Island

  • Licensed welders in Massachusetts and Rhode Island

  • Master Refrigeration License

  • OSHA certified

  • We specialize in Mitsubishi VRF systems installation

  • We specialize in Daikin VRV systems installation

  • We have a full G-12 License for your fuel oil needs

  • We represent and service the full line of PVI equipment

  • We are the representative for TRUMBULL CAMPBELL Associates

  • We are specially trained on TURBOCORE compressors

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