HVAC Installation in Lafayette, LA
A new system here will heat from November through March and cool from April through October every year. Tell us about the house, and a licensed contractor who covers Lafayette Parish will get in touch.
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A system that has to run almost all year here
Lafayette Parish doesn't give a new system much time off. Summer afternoons average 91°F, and cooling runs April through October, seven months straight. Winter is shorter but still real, with nights averaging 44°F from December through February and heat needed November through March. Between the two, the system is working almost every month of the year.
Most homes here heat with electricity, so the outdoor unit carries both jobs, cooling in summer and often heat in winter too. That's a lot of hours on one machine. It also means a power outage leaves a house with neither. Louisiana sees its share of those. Nearly half of households in the state went at least a day without power in 2024, and the parish has logged 39 damaging wind events over the past ten years. A new install is worth planning with that in mind, from surge protection to how the system restarts once power comes back.
- 5 months
- November through March, your system heats
- 7 months
- April through October, it cools
- 44°F
- the average winter night it heats against
- 91°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Louisiana requires HVAC contractors to hold a state license.
The Louisiana State Licensing Board for Contractors tested this contractor before handing out the license, and the board keeps a record of who holds one. That license belongs to the contractor, not to any single job, so the same credential that covers your installation covers the next homeowner's too.
For an installation like this one, the license tells you the contractor is accountable to the state. The permit is a separate piece of protection, and in most cities and parishes a furnace or air conditioner replacement needs one from the local building office, along with an inspection once the work is done. That inspection is what catches a bad gas connection or a wiring mistake, not the license itself.
Source: Louisiana State Licensing Board for Contractors
- When should I replace my HVAC system?
- Replace it when repairs get more frequent, when it's using an old refrigerant, or when it can't keep up on the hottest or coldest days anymore. An aging system that struggles is a real risk here, since homes need heat or cooling all 12 months of the year, not just a few. If a contractor is quoting a major repair on a system that's gotten old, ask what a new system would cost instead, since you may be close to paying for a rebuild anyway.
- Should I replace my furnace and air conditioner at the same time?
- If they're close in age, yes, that's 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 furnace with a new air conditioner, or the other way around, can mean the newer unit never runs at its rated efficiency. Homes here need heat five months a year and cooling seven, so both halves get real use and wear at a similar pace. A contractor can look at the age and condition of each unit and tell you honestly whether replacing both now makes sense or whether one can wait.
- What happens during an HVAC installation?
- A contractor removes the old furnace, air conditioner or heat pump and sets the new equipment in place, then connects it to the ductwork, refrigerant lines, gas or electric supply, and condensate drain. Once it's connected, they test it, check refrigerant charge and airflow, and confirm it's heating and cooling correctly before calling the job done. Replacing this kind of equipment needs a permit from the local building office in most cities and counties, along with an inspection once the work is finished. Louisiana also requires the contractor doing the work to hold a state license through the Louisiana State Licensing Board for Contractors.