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Heating and cooling guides for New Orleans homes

Short, practical answers to the questions we hear most on service calls: what things cost, what to check first, and when a repair stops making sense.

The short answer

These guides answer the questions New Orleans homeowners ask us most: what an AC repair or replacement costs, why a house stays humid, whether a heat pump makes sense here, and what to do before and after a storm. Each is written by Gail Barlow, our hvac guides editor, and updated when the facts change.

All guides

Newest first

Written by Gail Barlow. Cost figures are published market ranges for this area, not our quotes.

What AC repair costs in New Orleans

Published 2026 AC repair ranges for New Orleans, what pushes a bill up, and how to read a quote before you approve it. Read this before you call.

Full guide: What AC repair costs in New Orleans

Why the house feels damp with the AC on

Thermostat says 72 and the house still feels sticky? Why AC here leaves moisture behind and what fixes it. Read this, then call.

Full guide: Why the house feels damp with the AC on

AC not cooling: what to check first

AC running warm? Five safe checks that can fix it or tell the technician what is wrong, plus what not to touch before you call for help.

Full guide: AC not cooling: what to check first

Heat pump or gas furnace in Louisiana

Mild winters make a strong heat pump case in south Louisiana. How it compares with a gas furnace, and when to keep the furnace. Read before you book.

Full guide: Heat pump or gas furnace in Louisiana

Hurricane season HVAC prep

What to do to your AC before a storm, during an outage and after the water drops, so a restart does not become a replacement. Schedule prep early.

Full guide: Hurricane season HVAC prep

What AC replacement costs

Published 2026 ranges for replacing an AC or full HVAC system in New Orleans, what moves the price, and how to compare quotes. Read before you call.

Full guide: What AC replacement costs

How to choose an HVAC company

Questions to ask on the first call, what to verify yourself, and the red flags worth walking away from when you hire an HVAC company here.

Full guide: How to choose an HVAC company

AC leaking water inside

Water by the air handler or a ceiling stain usually means a clogged drain, failed pan or frozen coil. How to tell, and what to do before you call.

Full guide: AC leaking water inside

Cooling an old house without ducts

Tall ceilings, plaster walls, no attic path: how to cool a pre-war house with mini-splits or small ducts, and what historic review expects. Read on.

Full guide: Cooling an old house without ducts

How long AC units last here

Heat, humidity and salt air shorten AC life in New Orleans. What a system gives here, what wears it out first and how to stretch it. Read before it fails.

Full guide: How long AC units last here

SEER2 rules in Louisiana

What the SEER2 minimums mean for a new AC or heat pump in Louisiana, why matched systems matter, and what to ask about refrigerant. Read before you buy.

Full guide: SEER2 rules in Louisiana

R-22 systems: repair or replace

An older AC that runs on R-22 gets costly to fix once it leaks. How to tell if yours uses R-22 and when a repair still makes sense. Read before you decide.

Full guide: R-22 systems: repair or replace

Thermostat settings for humid summers

Thermostat settings for a humid summer: temperature, fan mode, setbacks and humidity, so the house stays comfortable without a big bill. Read the settings.

Full guide: Thermostat settings for humid summers

HVAC checklist for rentals

Between tenants, through the season and when something breaks: an HVAC checklist for rental homes, apartments and short-term rentals. Read the full list.

Full guide: HVAC checklist for rentals
How to use these

Start with the problem in front of you

If something has just broken, start with the guide that matches the symptom: warm air, water, ice or a system that will not start. If you are planning, the cost and replacement guides lay out what drives the price and how to compare quotes.

The cost guides use published market ranges for this area, with the source period noted, so you can check a quote against something other than the quote itself. They are planning numbers, not our prices, and they are updated when the underlying data changes.

Several guides deal with storm season, because in this city an HVAC system has to survive hurricanes as well as heat. If you are reading ahead of a storm, start with the preparation guide; if you are reading after one, start with the part about restarting safely.

None of these replace a diagnosis. They are here so the conversation with a technician, ours or anyone else's, starts from an informed place, and so you can spot a quote that does not add up.

Reading an HVAC guide in a New Orleans home
HVAC repair checklist for homeowners
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