AC replacement in New Orleans generally runs $5,500 to $12,000 installed, set by tonnage, SEER2 rating, and duct condition. Boudreaux Heating & Air handles the full swap-out. Older Uptown and Lakeview homes often need duct work priced separately.
| System size / type | Typical installed cost |
|---|---|
| 2-ton (small home / condo) | $5,500 โ $7,000 |
| 3-ton (1,500โ2,000 sq ft) | $6,800 โ $8,500 |
| 4-ton (2,000โ2,800 sq ft) | $8,000 โ $10,500 |
| 5-ton (large home) | $9,500 โ $12,000+ |
| High-efficiency variable-speed (any size) | $10,000 โ $14,000 |
| Minimum service charge | $150 |
Typical installed AC replacement cost by system size in New Orleans
System size and efficiency set most of the price. A 2-ton unit cools a small home or condo, while a 2,500-square-foot house usually needs 4 tons. Higher SEER2 ratings cost more upfront but cut monthly cooling bills. Standard 14.3 SEER2 systems sit at the lower end of the range, and variable-speed 17+ SEER2 units run $10,000 and above. Correct sizing matters in New Orleans humidity, since an oversized unit short-cycles and fails to remove moisture.
A quoted price covers removal of the old equipment, the new condenser and indoor coil or air handler, refrigerant line evaluation, electrical connections, and startup. New Orleans requires a mechanical permit for equipment replacement, which the contractor pulls. R-410A and newer R-454B refrigerant systems affect line-set compatibility, so some jobs need line replacement. A full turnkey install means the homeowner does none of the lifting.
Many New Orleans homes have aging or leaking ducts that reduce efficiency. Duct repair or replacement is priced separately and can add $1,500 to $4,000. Homes built before central air, common in the Garden District and Marigny, sometimes need new duct runs or a mini-split alternative. A contractor inspects duct integrity during the on-site visit before finalizing the total.
Replacing only the outdoor condenser without a matching indoor coil reduces efficiency and can void warranties. Full-system replacements that include the furnace or air handler cost more but perform reliably long-term. Matched systems from a single manufacturer qualify for the strongest equipment warranties, typically 10 years on parts when registered.
New Orleans heat and humidity run hard from May through October, so AC systems here work more hours per year than in cooler climates, which shortens lifespan to roughly 10โ15 years. Homes in Lakeview and Gentilly rebuilt after flooding often have raised mechanical equipment, and installs must keep condensers above flood levels. Older Uptown, Bywater, and Treme houses frequently have limited attic or closet space, affecting equipment placement. City mechanical permits apply to equipment replacement. Salt air near Algiers Point and Lakeview can corrode outdoor coils faster, so coated-coil units are worth considering. Financing is common given typical project totals.
Most central AC systems in New Orleans last 10 to 15 years, shorter than the national average because of heavy year-round cooling demand and coastal humidity.
Repair usually makes sense if the unit is under 10 years old and the fix costs less than half of a replacement. Older systems with a failed compressor are typically better replaced.
Sizing depends on square footage, insulation, and window exposure, with roughly one ton per 500โ600 square feet in local conditions. A Manual J load calculation confirms the correct size.
Yes, New Orleans requires a mechanical permit for AC equipment replacement, which a licensed contractor pulls as part of the installation.