Diagnostics & Maintenance

Brennan Heating & Air Conditioning, along with most major manufacturers, recommend annual preventative maintenance on your heating/cooling systems to ensure reliability, efficiency, and safety. You wouldn’t drive your car 25,000 miles without changing the oil. The same logic holds true for your home heating/cooling system!


Below is a partial list of the service and maintenance we offer our residential customers:

  • Maintenance and Repair
  • HVAC Troubleshooting
  • We have qualified technicians to diagnose issues on:
    • Furnaces
    • Air Conditioners
    • Heat Pumps
    • Boilers
    • Tankless Water Heaters
    • Conventional Water Heaters
    • Ductless Heat Pumps / Mini Splits

For a full list of diagnostics & maintenance procedures and pricing, please call us at 1-877-BRENNAN or visit us on Live Chat