HVAC Installation in Mount Washington, KY
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 Bullitt County will get in touch.
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A system that works nearly every month here
Heat runs October through April, seven months, with winter nights averaging 28°F. Cooling picks up May through September, five months, with afternoons around 86°F. Between the two, a new system will be running most weeks of the year, so it needs to be sized right for both jobs, not just one.
Nearly half of homes here heat with electricity, so when the power goes out, the furnace does too. Kentucky recorded 14 winter storms and 58 damaging wind events over the past ten years, and in 2024 close to a quarter of households in the state lost power for a day or more. Whoever installs your system should size and set it up with that in mind.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 28°F
- the average winter night it heats against
- 86°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Kentucky requires HVAC contractors to hold a state license.
The state license is issued to the contractor, through the Department of Housing, Buildings and Construction, not to each job the contractor does. That means the testing and the record behind it belong to the business you hire, and cover the work they do anywhere in Kentucky, not just in Bullitt County.
For an installation like this, the license tells you the contractor was tested and is on record with the state. The permit is separate, and in most cities and counties in Kentucky, a new furnace, air conditioner or heat pump needs one from the local building office, with an inspection once the work is done. That inspection is what checks the installation itself, not the license.
Sources: Kentucky Legislative Research Commission · Kentucky Department of Housing, Buildings and Construction
- When should I replace my HVAC system?
- Look at the age and how often it breaks down, not just whether it still runs. A furnace or air conditioner working hard past 12 years old is more likely to fail on the coldest night or the hottest afternoon, and here winter nights average 28°F while summer afternoons average 86°F, so there is no easy season to be without heat or cooling. If you are calling for repairs every year, or the last one cost real money, that is usually the sign it is closer to the end than the beginning. A contractor can tell you whether the unit in your house still has good years left.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, it often makes sense to plan for both, since homes here need heat from October through April and cooling from May through September, which covers all 12 months of the year. A furnace and air conditioner installed years apart can end up mismatched, and the older one usually fails first anyway, not long after the other. That said, if one unit is newer and running fine, there is no reason to replace it just because the other needs work. A contractor can look at the age and condition of each and tell you whether pairing them makes sense for your house.
- What happens during an HVAC installation?
- The contractor removes the old furnace, air conditioner or heat pump and puts in the new equipment, connecting it to the ducts, gas or electric lines, and the thermostat. Before that, they size the equipment to the house, since a unit that is too big or too small will not heat or cool it properly. In most cities and counties, this job needs a permit from the local building office, and the work gets inspected when it is done. That inspection confirms the system was installed to code, which matters for both safety and how well it runs.