Air Duct Cleaning Cost in Biloxi, Mississippi
Air duct cleaning in Biloxi runs about $530 for a typical job (whole house). Basic installs start near $310. High-efficiency equipment with duct or electrical work can reach $710.
Biloxi Weather and HVAC Load
Biloxi logs 1,457 heating degree days and 2,754 cooling degree days in a normal year, based on the closest NOAA weather station. Cooling carries most of the load, which is why compressors and condenser fan motors wear out faster here than in northern cities. A normal year brings 11 nights at or below freezing and 52 days over 90°F.
| Heating degree days / year | 1,457 |
|---|---|
| Cooling degree days / year | 2,754 |
| Nights at or below 32°F | 11 |
| Days above 90°F | 52 |
| Average low / high | 60.6°F / 76.3°F |
Biloxi Housing Stock
The median Biloxi home dates to 1990, according to the Census ACS. That makes the typical house about 36 years old. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Biloxi has roughly 9,600 owner-occupied homes, or 48.6% of households. Homes here have a median value of $203,200 and households a median income of $55,958. Those two numbers drive the labor adjustment in our estimate.
Between 2020 and 2025, NOAA's Storm Events Database logged 10 hail days and 21 days with damaging thunderstorm winds in Harrison County. The largest hail reported was 2 inches across. Hail flattens the thin aluminum fins on condenser coils and cuts airflow. After a big storm, take a look at the outdoor unit; homeowners insurance often covers the damage. Harrison County also had 9 tornado days in that period.
When to Book It
- You moved into a house with no maintenance records
- Dust puffs out of the vents when the system starts
- A musty smell after a leak or flood
- You just finished a remodel
What Moves the Price
- Adding a dryer vent cleaning
- Sanitizing or mold treatment
- House size and duct layout
- How hard it is to reach ducts in the attic or crawlspace
- How many supply and return vents the house has
For Biloxi we lowered the national figures about 11%, based on local income, home values and climate-based equipment sizing. Get at least three written quotes; real bids can land outside this range.
What the Quote Should Cover
- Cleaning the blower compartment
- Before-and-after photos
- Cleaning the registers and grilles
- Cleaning under negative pressure with a truck or portable vacuum
- Inspecting the supply and return ducts
Mississippi Permits, Efficiency Rules and Rebates
Mississippi is in the DOE's Southeast region, where new split central air conditioners need at least 14.3 SEER2 (13.8 SEER2 for systems of 45,000 BTU/h and up).
Before You Hire
- Put in a new filter as soon as the cleaning is done.
- Watch out for $99 whole-house deals. They tend to turn into upsells once the crew is inside.
- If the ducts leak, have them sealed during the same visit.
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Air Duct Cleaning Questions from Biloxi Homeowners
How much is air duct cleaning in Biloxi?
Plan on $310 to $710, with most jobs near $530. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule air duct cleaning in Biloxi?
Between late fall and early spring. With 52 days over 90°F, Biloxi contractors are booked solid all summer, and off-season jobs are easier to schedule and negotiate.
Does duct cleaning lower energy bills?
Not by much. Sealing leaky ducts makes a much bigger difference to efficiency and comfort.
How often should ducts be cleaned?
There's no set schedule. The EPA recommends cleaning when there's visible mold, pests or a lot of debris, not on a routine basis.
Air Duct Cleaning Near Biloxi
- Gulfport $290 to $670
- Hattiesburg $290 to $670
- Southaven $340 to $770
- Jackson $290 to $670
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Biloxi; NOAA Storm Events Database 2020-2025, Harrison County. Prices are our estimates, not contractor quotes. Updated 2026.