Providing the Greater Boston Area with the Highest Level of HVAC Service


Welcome to PJ Mechanical LLC

PJ Mechanical LLC is a full-service heating, ventilation and air-conditioning contractor for commercial and residential customers. Our certified technicians have the training, tools and experience to handle a complete range of heating, air-conditioning and air-quality services.

  • Furnace, Air Conditioning & Heat Pump Installation (New & Replacement)
  • High Velocity Air Conditioning
  • HVAC System Repairs & Safety Inspections
  • Indoor Air Quality (IAQ) Equipment Installation & Service
  • Scheduled Preventative Maintenance
  • Integrated Control Systems
  • Geothermal Equipment
  • Hybrid Heat
  • Water-source Heat Pumps
  • Rooftop Units
  • Cooling Towers
  • Generators

Satisfaction Guarantee

At PJ Mechanical LLC, we work hard to make sure our customers are completely satisfied. Our Satisfaction Guarantee includes: priority service for existing customers; no charge for covered parts per the manufacturer's written warranty; unlimited no-charge service calls for the first 12-months after installation by PJ Mechanical LLC's professional, certified service technicians.