Trigate Mechanical is Committed to Providing the Most Professional HVAC Services to Pittsburgh and the Surrounding Areas.

Trigate’s experience, flexibility, and highly trained staff will get any job done right the first time. Whether we are installing new equipment or keeping older systems running efficiently, we pride ourselves on our honest pricing and timely completion of your project.

Call us today at 412-391-2999 or fill out our contact form to set up your preventative maintenance appointment!


Trigate Mechanical can repair, replace, or restore most building heating, ventilating, and air conditioning equipment. Our technicians are trained and experienced to service all types of systems regardless of their complexity.

Every customer we have has different needs for their facilities whether we are working on humidification systems in art galleries and laboratories or performing preventative maintenance at office buildings, our goal is to offer solutions that protect your HVAC investment and keep future repairs to a minimum.

Recently, we were named in Pittsburgh Magazine as the HVAC contractor for Best Home Renovation for 2018. The project consisted of gutting all of the old equipment and installing a custom spiral duct system as well as a radiant heat system under the concrete floors.


  • Boilers
  • Cooling Towers
  • Air Handlers
  • Exhaust Fans
  • Condensers
  • Rooftop Units
  • Heat Pumps
  • Mini-Split Units
  • Hot Water Tanks
  • Humidification Systems
  • Ice Melt/Radiant Heat Systems

Preventative Maintenance

Most HVAC system failures could be avoided entirely through periodic preventative maintenance. Clogged filters, rust, and dirt are the main factors in mechanical breakdown. Our preventative maintenance program will reduce emergency service calls and keep your building equipment working efficiently all year long.


  • Reduce operating costs
  • Fewer emergency repairs
  • Optimization of equipment performance
  • Improve comfort and indoor air quality
  • Ensure life expectancy of equipment
  • Lower utility bills

Typical Services Covered

Preventative maintenance service checklists depend on the type of equipment and environment served. A specific preventative maintenance program is developed to meet each customer’s needs. Some of the items found in a PM checklist include:

  • Replace filters and belts
  • Clean condenser coils and drains
  • Measure start load and full load amps
  • Tighten electrical connections
  • Measure temperature differences, fluid levels
  • Adjust belt tension
  • Lubricate motors and pumps
  • Inspect for gas leaks
  • Verify air flow
  • Test operations of all parts
  • Test safety controls


New Installations:

  • Boilers
  • Roof top units
  • Split systems
  • Air handlers

Duct Jobs:

  • Rectangular
  • Flexible
  • Spiral
  • Air sock

Wi-fi Thermostats:

Convenient comfort and control from anywhere

Humidification Systems:

Multiple projects require humidity control specifications and strict maintenance of temperature controls

Radiant Heating Systems:

Melt snow and ice on sidewalks, entryways, and foot bridges.

Indoor application includes radiant heat under concrete slabs to keep it warm. It is usually more efficient than baseboard or forced air heating. More information

Thermal Imaging:

Thermal imaging is a helpful tool used to detect a problem before it occurs. Thermal images reveal hot spots in equipment, electrical shorts, or air leaks before the issue is ever known. It prevents total shutdown of critical equipment.

Industries We Serve

  • Art Galleries
  • Health Care Facilities
  • Office Buildings
  • Restaurants
  • Hotels
  • Auto Repair Shops
  • Hair Salons
  • Banks
  • Movie Theaters
  • Computer and Server Rooms
  • Laboratories
  • Manufacturing Facilities
  • Schools

Have a Question? Need a Quote?

Greentree Commons
381 Mansfield Avenue
Pittsburgh, PA  15220

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