Ductwork Repair & Sealing in New Orleans, LA
- What's included: a duct inspection, sealing of accessible joints and seams with mastic or foil tape, reconnection of loose fittings, and re-support of sagging runs.
- How fast: most single-system repairs are completed in one visit; larger crawlspace or attic re-runs may take a full day.
- What it costs: minor sealing and repairs typically run from a $150 minimum into the mid-hundreds, with larger jobs quoted after inspection.
- What we take: cash, card, and check.
- How to book: call (504) 238-4634 to schedule a free on-site duct assessment across Orleans Parish.
Duct sealing fits best when your air conditioner runs constantly but certain rooms stay warm, or when your energy bill climbs without a matching change in habits. In New Orleans, ductwork often runs through hot, humid attics and vented crawlspaces, so leaks pull in unconditioned air and waste a large share of what your system produces. Sealing those leaks lets a properly sized unit keep up, which is why we recommend it before assuming you need a bigger AC.
Repair versus full replacement is the main decision. If runs are intact but leaking at the joints and boots, sealing is the cost-effective choice and usually restores balanced airflow. If flex duct is crushed, torn, or the insulation has soaked through from a past attic leak or storm humidity, replacing those sections beats patching them. Homes in Lakeview and Gentilly that sat through past flooding sometimes have duct insulation that never fully recovered, and those runs are better replaced than resealed. The trade-off is straightforward: sealing is faster and cheaper, but degraded duct material will keep failing until it is swapped out.
New Orleans housing stock shapes what we find. Raised shotgun and camelback homes in Bywater, the Marigny, and Uptown frequently route ducts through tight crawlspaces where straps loosen and joints separate over time. Slab homes in Broadmoor and Mid-City more often run ducts through the attic, where summer heat and daily temperature swings work seams apart. In the Garden District, Treme, and Algiers Point, older retrofit systems sometimes mix duct sizes and materials, which creates pressure imbalances we correct while sealing. We inspect the full accessible run so the fix addresses the actual leak points, not just the register you noticed.
After sealing, most homeowners feel steadier temperatures room to room and see the system cycle off more often. We confirm the exact price on-site because every duct layout differs, and we never quote below our $150 minimum. If we find that replacement makes more sense than repair for part of the run, we explain both options and the cost difference before any work begins.
📞 Call (504) 238-4634Ductwork Repair & Sealing pricing in New Orleans
| Minor duct sealing / single joint repair | $150–$300 |
| Multiple leak sealing across accessible runs | $300–$650 |
| Reconnect and re-support sagging duct sections | $250–$600 |
| Partial duct section replacement (per run) | $400–$1,200 |
Exact price confirmed free on-site before any work.
Ductwork Repair & Sealing — questions, answered
How much does duct sealing cost in New Orleans?
Duct sealing in New Orleans starts at our $150 minimum for minor work and commonly runs into the mid-hundreds for multiple leaks. The exact price is confirmed on-site after we inspect your duct layout, since attic and crawlspace runs vary widely between homes.
Why are my ducts leaking in New Orleans attics and crawlspaces?
In New Orleans, ducts leak most often because heat and humidity in attics work seams apart and crawlspace straps loosen, letting joints separate. Older flex duct and past moisture exposure in areas like Lakeview and Gentilly speed up this wear.
Should I repair or replace my ductwork in New Orleans?
Repair and sealing are the right choice in New Orleans when duct runs are intact but leaking at joints. Replacement is better when flex duct is crushed, torn, or has water-damaged insulation, which is common in homes that saw past attic leaks or flooding.
Can duct sealing lower my energy bills in New Orleans?
Yes. Sealing leaky ducts in New Orleans keeps conditioned air from escaping into hot attics and crawlspaces, so your system reaches every room without running constantly. Many homeowners see steadier temperatures and shorter cooling cycles after the repair.
How long does duct repair take in New Orleans homes?
Most duct repair and sealing jobs in New Orleans single-system homes are finished in one visit. Larger attic or crawlspace re-runs in shotgun and camelback homes can take a full day, which we confirm during the free on-site assessment.