D & G Mechanical, Inc. 

Providing Excellent Service Since 1985

Get a free estimate! 
Call Now: 1-724-528-1133
In need of a Heating & Cooling Mechanic?
Hour Emergency Service!

D&G Mechanical, Inc. is an equal opportunity employer.

P.O. Box 231 | 254 Wet Track Road West Middlesex, PA 16159

PA Home Contractor's License

# PA 020679

D & G Mechanical, Inc. services all makes and models of residential, commercial and industrial furnaces, 
air conditioners, heat pumps, air cleaners and humidifiers.

Service hours are from 7:30am-3:30pm but D & G offers 24 hours/365 days per year service in the event of an emergency.

We offer checkups and adjustments on:

  • Thermostats

  • Safety Controls

  • Burners

  • Pilots

  • Fan Belts

  • Filters

  • Fuel Pumps

  • Fan Controls

  • Pressures

  • Heat Exchangers

  • Complete Furnace Cycle

 To ensure everything is running smoothly we will also perform the following:

  • Check for Gas Leaks

  • Lubricate Moving Parts


Complete Furnace Check-up:

Call for new construction, switch outs, single family, & multi-family!

Request a quote today

Unit Installation

We offer checkups and adjustments on:

  • Operating Pressures

  • Voltage Unit

  • Air Temperature

  • Adequate Refrigeration Charge

  • Fan Belts

  • Filters

  • Pressure Safety Controls

  • Contactors 

  • Relays

  • Condensate Drains

  • Condenser Coils

  • Check Out Complete Cooling Cycle

 To ensure everything is running smoothly we will also perform the following:

  • Lubricate Moving Parts

  • Check Fan Belts

  • Check All Wiring connections

  • Check Heat Exchanges

Complete A/C


Our maintenance agreements allow you to save money on service calls, parts and labor, as well as your energy costs. You also get preferred treatment and quicker response time.

Preventative Maintenance Agreements