HVAC Installation in Cape Girardeau, MO
A new system here will heat from October through April and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Cape Girardeau County will get in touch.
Tell us about the job
It takes about a minute.
A system that has to work almost every month here
Furnaces in Cape Girardeau County run October through April, seven months, with winter nights averaging 27°F. Air conditioners take over for May through September, five months, against afternoons that average 88°F. Together that is all twelve months, so a new system gets almost no time standing idle.
Almost half the homes here, 47.9%, heat with electricity, which means the furnace or heat pump you install is what stands between the house and that 27°F night air. The county has logged 120 damaging wind events and 10 winter storms over the past ten years, and statewide, nearly one household in five went at least 24 hours without power in 2024. Whatever gets installed has to hold up through the cold, the heat, and the storms that come with both.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 27°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- When should I replace my HVAC system?
- Replace it when repairs start happening every year, or when it can't keep the house comfortable anymore. A furnace or air conditioner that breaks down mid season leaves you without heat or cooling right when you need it most, and here that means October through April for heat and May through September for cooling. If a technician tells you a repair costs close to what a new system would, that's usually your answer.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, yes, it usually makes sense to replace them together. A furnace and air conditioner installed in the same year tend to wear out close to the same time, and pairing a new outdoor unit with an old indoor coil can cause problems since they're built to work as a matched set. If only one has actually failed and the other is still working fine, a contractor can tell you whether it's worth waiting or replacing both now.
- What happens during an HVAC installation?
- A contractor removes the old furnace and air conditioner, sets the new equipment in place, and connects it to the existing ductwork, gas line, electrical, and condensate drain. They'll check the ducts for leaks or sizing problems before closing everything up, since a new system connected to bad ductwork won't perform the way it should. Once it's running, they test the airflow, the refrigerant charge, and the thermostat, and walk you through anything you need to know about the new controls.