Heat Pump Installation in Slidell, 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 St. Tammany Parish will get in touch.
Tell us about the job
It takes about a minute.
A heat pump here runs almost year round
Slidell needs heat or cooling every month of the year. Summer afternoons average 91°F and that load runs April through October, seven months. Winter is shorter, November through March, with nights averaging 43°F. A heat pump here spends most of its life cooling and the rest keeping up through mild but real winter nights.
Any split-system heat pump installed new has to meet 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. Past that minimum, what matters most in this area is how well the unit holds up. St. Tammany Parish has logged 88 damaging wind events over the past ten years, and about half of Louisiana households lost power for 24 hours or more in 2024. A new installation is worth doing right, since it will be leaned on in both heat and storms for a long time.
- 5 months
- November through March, your system heats
- 7 months
- April through October, it cools
- 43°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 and keeps that license on file. It covers the contractor as a whole, not this one job, so it tells you the business has met the state's bar, not that someone signed off on this particular install.
That check comes from the local building office instead. A heat pump installation needs a permit in most cities and counties, and an inspection once the work is done, which is what looks at the actual connections in your home. The state license tells you who is doing the work. The permit and inspection tell you whether this job was done right.
Source: Louisiana State Licensing Board for Contractors
- Is a heat pump better than a furnace?
- It depends on what you're weighing. A heat pump handles both heating and cooling from one system, where a furnace only heats, so you'd still need a separate air conditioner alongside it. Here, winters average 43°F and summers hit 91°F, and homes need cooling seven months of the year, so a system that does both jobs well matters more than it would somewhere colder. A furnace can still make sense in a home built around one, but a heat pump is worth asking a contractor about if you're replacing your system anyway.
- What's the difference between a heat pump and an air conditioner?
- An air conditioner only cools. A heat pump cools the same way an air conditioner does, but it can also run in reverse to pull heat from outside air and bring it into your home, so it works as your heating system too. That's useful here since homes need heat from November through March and cooling from April through October, almost the whole year. A heat pump replaces both your furnace and your air conditioner with one outdoor unit and one indoor unit.
- Does a heat pump work in cold weather?
- Yes, a heat pump pulls heat from outside air even when it's cold out, since air still holds usable heat well below freezing. Winter nights here average 43°F, which is well within the range a heat pump handles without trouble. New units sold now have to meet a federal minimum of 7.5 HSPF2 for heating, so any heat pump installed today is rated for exactly this kind of climate.

