A snow-covered craftsman house at night with one illuminated window and an attached two-car garage.

HVAC Repair in Springfield, MO

Homes here need heat from October through April and cooling from June through September. If your system quits, tell us what it's doing and a licensed contractor who covers Greene County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
A gas furnace and sheet-metal air handler unit installed in an unfinished concrete basement.

Eleven months of work, not one

Your furnace runs October through April here, and the air conditioner picks up in June and runs through September. Only one month of the year asks nothing of either system. That kind of schedule wears on the parts that start the cycle, the igniter, the capacitor, the contactor, because they are the ones working every time the system kicks on.

Winter nights average 25°F, cold enough that the furnace cycles on and off most of the night to keep up. Summer afternoons average 87°F, and the air conditioner is doing the same thing in reverse. Greene County has seen 14 winter storms and 302 damaging wind events over the past ten years, and storms like that knock out power. In Missouri, 19% of households went at least 24 hours without power in 2024. Most systems come back on their own once power returns, but a system already worn from a long season of running is the one that does not.

7 months
October through April, your system heats
4 months
June through September, it cools
25°F
the average winter night it heats against
87°F
the average summer afternoon it cools against
Isometric grayscale illustration of a cutaway house showing interior rooms, ceiling ductwork, a flue pipe, and a furnace unit on the left side.
Your system heats October through April and cools June through September.

NOAA nClimDiv, 1991–2020 normals

An unfinished basement containing a forced-air furnace with metal ductwork, exposed wooden ceiling joists, a hanging Edison bulb, and bare concrete floors.

A new furnace and air conditioner would cut about $190 a year off heating and cooling for a typical Greene County home.

  • A new furnace and AC$990 a year
  • An older furnace and AC$1,180 a year

Estimates for a typical Greene 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?
Most often it is the thermostat, the power to the furnace, or the igniter. Check that the thermostat is set to heat and the temperature is above room temperature, and check the breaker and the furnace switch, which looks like a regular light switch near the unit. If those are fine, an igniter that has failed or a pilot that will not stay lit will also stop the furnace from producing heat, and that needs a contractor to replace or repair. A dirty filter can also block enough airflow that the furnace shuts itself off as a safety measure, so check that too before anything else.
Why is my system running but not cooling the house?
The system running but not cooling usually means airflow is blocked or the refrigerant charge is low. Start with the filter. A clogged filter starves the coil of airflow, and ice can build up on it, which stops cooling even though the blower still runs. If the filter is clean and the vents are open, low refrigerant from a leak is a common cause, and that only a contractor can check and correct. With afternoons here reaching 87°F, a system that is not cooling properly will fall behind fast, so it is worth checking the filter right away rather than waiting.
What can I check before calling for HVAC repair?
Check the thermostat first. Make sure it is set to heat or cool as needed, the batteries are good, and the temperature setting actually calls for the system to run. Next check the breaker for the unit and any power switch near the furnace or outdoor condenser, since a tripped breaker or a switch bumped off will stop the system with no other symptoms. Then check the filter, since a filter clogged with dust cuts off airflow and can cause both heating and cooling problems. If the system still is not working after that, a contractor will need to look at it directly.