HVAC Repair in Parkville, MO
Homes here need heat from October through April and cooling from May through September. If your system quits, tell us what it's doing and a licensed contractor who covers Platte County will get in touch.
Tell us about the job
It takes about a minute.
Parkville runs its system almost year round
Furnaces here work October through April, seven months of the year, with winter nights averaging 22°F. That kind of cold means long, frequent burner cycles, and each start puts wear on the igniter and the heat exchanger. When the igniter finally gives out, the furnace won't light at all.
Summer flips the load onto the air conditioner. Afternoons averaging 87°F push the compressor to run long stretches to keep up, and a system already worn from winter can struggle to keep the house cool. Platte County has also seen 68 damaging wind events and 10 winter storms over the past ten years, the kind of weather that knocks out power and stresses outdoor units. Across Missouri, almost one household in five went at least a day without power in 2024, and a furnace or air conditioner does not always come back on the way it should once the power returns.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 22°F
- the average winter night it heats against
- 87°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $220 a year off heating and cooling for a typical Platte County home.
Estimates for a typical Platte County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Missouri fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
- Why is my heat not working?
- The most common reason is the igniter or the flame sensor has failed, especially in a gas furnace that has run for a few winters straight. Check first that the thermostat is set to heat and the filter is not clogged. A blocked filter can cause the furnace to shut itself off before it ever warms the house. If the furnace tries to start and then stops, or you hear clicking with no flame, that points to the igniter or sensor, and a contractor will need to test and replace the part. With winter nights here averaging 22°F, a furnace that will not stay lit is not something to wait out.
- Why is my system running but not cooling the house?
- If the air from the vents feels warm or barely cool, the problem is usually low refrigerant from a leak or a coil that has frozen over with ice. A dirty filter can also choke off airflow to the point the coil freezes, so check the filter first and replace it if it is gray or clogged. If the filter is clean and the air still is not cold, the system needs a contractor to check refrigerant levels and look for a leak. On afternoons near 87°F, a system that runs constantly but does not drop the house temperature is working hard for no result, and that is worth having looked at soon.
- What can I check before calling for HVAC repair?
- Start with the thermostat. Confirm it is set to heat or cool as needed and the batteries are not dead. Check the filter next and replace it if it looks gray or packed with dust, since a blocked filter causes both heating and cooling problems. Look at the breaker panel too, since a tripped breaker will stop the system cold and is an easy fix. If the system still is not heating or cooling right after that, a contractor will need to look at the parts inside the unit itself.


