HVAC Tune-Up & Maintenance Cost in Biloxi, Mississippi
Expect to pay $80 to $230 for HVAC tune-up in Biloxi, MS (per visit). Most homeowners end up near $160, depending on the equipment tier and how much of the old setup can be reused.
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
- Heating or cooling season is a few weeks away
- The system hasn't been serviced in the past year
- Airflow is weak, or room temperatures are uneven
What Moves the Price
- How many systems the house has
- One system, or both heating and cooling
- A yearly maintenance plan or a one-time visit
- Extra cleaning of the coil, blower or drain
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
- Calibrating the thermostat
- Tightening electrical connections
- Cleaning the coil and condensate drain
- Inspecting the burners, flame sensor and heat exchanger
- Checking and replacing the filter
- Checking refrigerant and airflow
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
- Keep your receipts. Many warranties ask for proof of maintenance.
- Have the furnace tuned up in the fall and the AC in the spring.
- Change 1-inch filters every one to three months.
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HVAC Tune-Up & Maintenance Questions from Biloxi Homeowners
How much is HVAC tune-up in Biloxi?
Plan on $80 to $230, with most jobs near $160. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule HVAC tune-up 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.
Is an HVAC maintenance plan worth it?
For most people, yes. A plan usually costs about the same as two tune-ups, and the repair discounts and priority scheduling come with it.
How often should HVAC be serviced?
Once a year for a furnace or an AC. Twice a year for a heat pump or any system that runs year-round.
HVAC Tune-Up & Maintenance Near Biloxi
- Gulfport $80 to $220
- Hattiesburg $80 to $220
- Southaven $90 to $250
- Jackson $80 to $220
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.