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Prevent a Costly Breakdown: Get a Heating System Tune-Up.

Professional heating system maintenance not only keeps your furnace or boiler working at peak efficiency, it makes it less likely to break down on a cold Colorado night.

So, what's involved in furnace or boiler maintenance? We're glad you asked. Here's what we do.

Our 21-point Furnace Inspection

Plumbline’s tune-up is a comprehensive 21-point inspection and basic cleaning that is designed to leave your furnace running at maximum efficiency and to ensure safe and reliable operation.   


  • Monitor a complete heat cycle to ensure proper operation.
  • Test safety controls.
  • Remove, inspect, lubricate, and make minor adjustments to the blower wheel and housing.
  • Perform gas leak detection and carbon monoxide testing with the unit running.
  • Visually inspect the heat exchanger for hot spots and cracks.
  • Inspect and adjust the burner assembly.
  • Check the ignition system including the flame sensor and igniter.
  • Check gas pressures.
  • Check the furnace filter for debris and dirt.
  • Check the fan belt on older furnaces.
  • Check the thermocouple and pilot and older furnaces. 
  • Take amperage draws on motors.
  • Check for adequate combustion air.
  • Airflow performance check.
  • Check venting.
  • Inspect carbon monoxide alarms and perform a visual safety inspection of the mechanical room and equipment.
  • Check the wiring.
  • Check the thermostat for proper operation.


  • Clean the flame sensor.
  • Clean the pilot assembly on older furnaces.
  • Clean the burner assembly.
  • Clean cabinet exterior.

No Breakdown Guarantee:

If we provide a clean bill of health and there are any issues during the current heating season, we will apply 100% of the cost of the tune-up toward any repairs.

Tune-up schedule slots move fast! Contact us for availability.

Our 18-Point Boiler Tune-Up

  1. Clean and inspect boiler burners.
  2. Inspect boiler electrical connections.
  3. Inspect boiler mechanical zone valves.
  4. Test and inspect boiler water entry components.
  5. Test and inspect boiler backflow preventer.
  6. Place load on boiler and check gas pressure.
  7. Check boiler for leaking pipes and valves.
  8. Perform combustion analysis on boiler.
  9. Inspect boiler circulating pump.
  10. Test boiler combustion air and flue exhaust.
  11. Inspect and clean boiler fireside surfaces.
  12. Inspect boiler door gaskets.
  13. Inspect plugs in boiler control piping.
  14. Flush boiler and remove all sediments.
  15. Inspect boiler pilot electrodes.
  16. Clean air damper and blower assemblies.
  17. Check motor starter contacts clean and check.
  18. Adjust burner for correct combustion.

Tune-up schedule slots move fast! Contact us for availability.

Take advantage of these offers today!

Tune-up schedule slots move fast! Contact us for availability.

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