HVAC Installation in Cullman, AL
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 Cullman County will get in touch.
Tell us about the job
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A system that works most of the year here
Cullman County asks for heat from October through April and cooling from May through September. That is 12 months of the year with one or the other running, and only a short break between. Winter nights average 33°F, cold enough that a furnace or heat pump is working most nights it runs. Summer afternoons average 88°F, and the same system has to bring that back down all summer long.
Most homes here heat with electricity, so a new system needs to handle both jobs well, not just the one that runs longer. Alabama also sees its share of hard weather, with 174 damaging wind events and 5 winter storms recorded here over the past ten years, and 18% of households in the state lost power for at least a day in 2024. A new installation is worth planning around that, not just around the temperature.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 33°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Alabama requires HVAC contractors to hold a state license.
The license comes from the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors. It covers the contractor, not the job, so it means the state tested this contractor and keeps a record of them, not that this particular installation was checked.
For a new heating and cooling system, that license is what stands behind the person doing the work. The other check on this job comes from the local building office. In most cities and counties, installing a furnace, air conditioner or heat pump needs a permit, and the work gets inspected once it is done.
Source: Alabama Board of Heating, Air Conditioning and Refrigeration Contractors
- When should I replace my HVAC system?
- Replace it when repairs start becoming frequent, when the system is old, or when it can no longer keep up on the coldest or hottest days. A unit that keeps breaking down is a bigger risk to keep patching than to replace. Homes here need heat from October through April and cooling from May through September, so there is no real off season for either system to sit broken. If a technician has been out more than once this year, get a straight answer on whether the next repair is worth it.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, yes, that is usually the better time to do it. A furnace and air conditioner installed together are matched to work as one system, and pairing an old unit with a new one can mean the new one never runs the way it is supposed to. It also means one visit instead of two separate jobs down the road. If only one is actually failing, a contractor can tell you whether the other has enough life left to wait.
- What happens during an HVAC installation?
- A contractor first sizes the new equipment to the house, checking the ductwork, the insulation, and the space the old unit sat in. The old furnace or air conditioner comes out, and the new one goes in along with any parts that need to be replaced, like the line set or the flue. Once it is connected, the contractor tests it, checks refrigerant levels or gas pressure, and confirms it is heating or cooling the way it should before calling the job done. Ask what the contractor checked before they leave, since homes here need heat or cooling every month of the year.