Furnace Repair in Biloxi, Mississippi
Furnace repair in Biloxi starts near $120 for a simple fix and can reach $530 for after-hours calls or major parts. A typical bill is closer to $350.
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. Heating equipment gets light use, so a furnace here often outlasts the AC it's paired with. 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.
Symptoms Worth a Service Call
- Cold air coming out of the vents
- The blower won't stop running
- The burners light, then shut off a few seconds later
- A yellow or flickering flame instead of a steady blue one
- The thermostat calls for heat and nothing happens
What Moves the Price
- Whether the part is still under the manufacturer warranty
- Night, weekend or holiday rates
- Which part failed: a flame sensor costs far less than a control board or blower motor
- The furnace's age and brand, which affect parts availability
- The diagnostic or service call fee
For Biloxi we lowered the national figures about 18%, 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
- A safety and combustion check
- A test run through a full heating cycle
- Replacing the part that failed
- A diagnostic check
Mississippi Licensing and Efficiency Rules
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). Most repairs don't need a permit. Anyone who opens the refrigerant circuit does need EPA Section 608 certification, and in Mississippi the company should carry a state license or registration. Ask for both.
Before You Hire
- If the furnace is past 15, ask the tech to price both a repair and a replacement.
- Check the filter, the thermostat batteries and the breaker first. Those three cause a surprising number of no-heat calls.
- Have the model and serial number from the furnace label handy. Parts get ordered faster.
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Furnace Repair Questions from Biloxi Homeowners
What does furnace repair cost in Biloxi?
Most bills land between $120 and $530, including the service call. A typical visit is about $350. Night and weekend calls cost more.
Should I repair or replace my furnace?
Here's a rule many techs use: multiply the furnace's age by the repair quote. If the number is over $5,000, replacing it usually makes more sense.
What is the most common furnace repair?
Cleaning a dirty flame sensor or replacing a cracked hot-surface ignitor. They're also two of the cheapest repairs.
Furnace Repair Near Biloxi
- Gulfport $120 to $510
- Hattiesburg $120 to $520
- Southaven $140 to $620
- Jackson $120 to $520
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.