HVAC Repair in Slidell, LA
Homes here need heat from November through March and cooling from April through October. If your system quits, tell us what it's doing and a licensed contractor who covers St. Tammany Parish will get in touch.
Tell us about the job
It takes about a minute.
Twelve months of work, on a system that keeps losing power
Your system doesn't get a break here. It runs cooling from April through October, when summer afternoons hit 91°F, then switches over for heat from November through March. That's every month of the year asking something of the same compressor, the same blower motor, the same electrical connections.
Most homes in St. Tammany Parish heat with electricity, so when the power goes, so does the heat. Louisiana saw 49% of households lose power for 24 hours or more in 2024, and the parish has logged 88 damaging wind events over the last ten years. Every outage and every surge is a hit to a system that was already running most of the year. After a storm, that's when you find out whether the capacitor or the control board took the damage, because the system won't start back up on its own.
- 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.
Louisiana licenses HVAC contractors through the Louisiana State Licensing Board for Contractors. That license belongs to the contractor, not to the job, so it covers the company or person doing the work rather than being issued fresh for each repair.
For a repair to your heating and cooling system, that license is what stands behind the person in your house. It is issued by the state board, and it is tied to the contractor doing the work, not to this particular repair.
Source: Louisiana State Licensing Board for Contractors
- Why is my heat not working?
- Start with the thermostat. Check that it is set to heat, not just on, and that the temperature is set above the room's current reading. If the thermostat looks right, check the breaker for the furnace or air handler, since a tripped breaker will shut the whole system down. A lot of heating problems here come down to power getting cut off somewhere between the panel and the unit, since most homes heat with electricity. If power and settings check out and you still have no heat, a contractor needs to look at the igniter or the heating element.
- Why is my system running but not cooling the house?
- Check the air filter first. A clogged filter blocks airflow across the coil, and a blocked coil cannot pull heat out of the air the way it should. Next, check the outdoor unit. Leaves, grass clippings, or anything piled against it will keep it from releasing heat the way it needs to. If the filter is clean and the outdoor unit has clear airflow around it and the house still is not cooling, the system may be low on refrigerant or have a failing part, and that calls for a contractor with gauges to find out which.
- What can I check before calling for HVAC repair?
- Check the thermostat settings, the breaker, and the air filter. A thermostat set wrong, a tripped breaker, or a dirty filter causes a lot of the no heat or no cool calls a contractor gets, and all take a minute to check yourself. If the system has an outdoor unit, look for anything blocking it, like leaves or debris. This area sees damaging wind, so after a storm it is worth checking the outdoor unit for debris before anything else. If everything looks clear and the system still is not working, that is when it makes sense to call a licensed contractor, since Louisiana requires HVAC contractors to hold a state license to do this work.