HVAC Replacement Cost in Gulfport, MS (2026)
Updated October 2026 · Gulfport, MS · index 0.88
How much does a new HVAC system cost in Gulfport? For a 3-ton system with central AC + gas furnace, homeowners in Gulfport, MS pay about $9,250 on average, and most quotes land between $6,300 and $12,200 — $2,108 to $4,074 per ton. The price covers removing the old system, the new outdoor and indoor equipment, a new line set, electrical and condensate connections, the thermostat, the permit, start-up and commissioning.
The HVAC replacement price in Gulfport runs 12% below the U.S. average: construction labor in the Gulfport area runs 18% below the national mean, materials 2% below. The same job averages $10,500 nationally and about $9,050 at the Mississippi statewide index.
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HVAC replacement price in Gulfport by system type
What a 3-ton system costs in Gulfport with each system type, installed:
| Option | Average · range |
|---|---|
| Central AC + gas furnacesplit AC, matched coil and an 80,000 BTU furnace$3,091 per ton | $9,250$6,300 – $12,200 |
| Heat pump + air handlerall-electric split heat pump, no furnace$2,868 per ton | $8,600$5,750 – $11,400 |
| Cold-climate heat pump + air handlervariable-speed heat pump rated for deep winter$3,275 per ton | $9,800$6,650 – $13,000 |
The least expensive option in Gulfport is heat pump + air handler, at about $8,600; cold-climate heat pump + air handler averages $9,800, 1.1 times as much.
Cost to replace an HVAC system in Gulfport by size
With central AC + gas furnace, priced for Gulfport, MS:
| Size | Average · range |
|---|---|
| A 2-ton system$4,026 per ton | $8,050$5,500 – $10,600 |
| A 3-ton system$3,091 per ton | $9,250$6,300 – $12,200 |
| A 4-ton system$2,624 per ton | $10,500$7,150 – $13,800 |
Some costs stay the same whatever the size — load calculation and equipment sizing, mechanical permit and inspection, old system removed, refrigerant recovered — so a bigger job costs less per unit: $2,624 per ton for a 4-ton system against $4,026 for a 2-ton system.
What an HVAC replacement in Gulfport includes
Line by line, the $9,250 average for a 3-ton system breaks down like this: 32% labor, 65% materials and equipment, and $280 in permit fees passed through at cost.
| Line | Low – high |
|---|---|
| Load calculation and equipment sizing | $70 – $200 |
| Mechanical permit and inspection | $150 – $400 |
| Old system removed, refrigerant recovered | $300 – $540 |
| Gas furnace (about 80,000 BTU) | $1,350 – $2,400 |
| Outdoor unit, set on a new pad | $2,000 – $3,750 |
| Matched indoor coil | $870 – $1,850 |
| New refrigerant line set (25 ft) | $330 – $540 |
| Disconnect, whip and thermostat wire | $180 – $300 |
| Condensate drain and safety switch | $100 – $230 |
| Gas connection and furnace venting | $280 – $520 |
| Plenums and transitions to the ducts | $230 – $540 |
| Programmable or smart thermostat | $200 – $370 |
| Evacuation and refrigerant charge | $100 – $200 |
| Start-up and commissioning | $100 – $230 |
| Warranty registration and walk-through | $50 – $120 |
Each line is the price book's U.S. rate for that step, scaled by 0.76 to the installed price published sources give for the whole job (see how these prices are built), times Gulfport's index of 0.88; permit fees are not scaled.
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What affects HVAC replacement prices in Gulfport
Labor and materials in Gulfport
Construction wages in the Gulfport metro run 15% below the U.S. mean (BLS, May 2025), and specialty-contractor pay in the city's county moves that down by 3%, to 18% below the national mean. Materials in the area's ZIP codes price 2% below the national average. Together they give Gulfport a construction cost index of 0.88.
Where Gulfport sits in Mississippi
Gulfport is the most expensive of the 3 Mississippi cities in our index, against a statewide index of 0.86. Jackson is the least expensive at 0.85.
Against the rest of the country
Of the 306 U.S. cities in JobFlex's index, Gulfport ranks 287th from the most expensive. The job that averages $9,250 here averages $10,500 at the national rate.
Climate a system is sized for in Mississippi
Contractors size equipment for the local design temperatures. Across Mississippi's counties the median is about 95°F on a hot summer day and 25°F on a cold winter night (ENERGY STAR county table), and your county can differ. A standard heat pump handles most winters here; a furnace or a cold-climate model covers the coldest nights.
Sales tax in Mississippi
Mississippi's base state sales tax is 7%, and cities and counties can add their own. How it applies to a home-improvement contract varies, so ask whether a quote includes it. Prices on this page are before tax.
What a Gulfport contractor will ask before quoting
- Job type — new construction, replacement or upgrade — and the evidence for it
- Heating and cooling load for this house (not the old nameplate), tonnage, fuel and refrigerant
- Ducts, line set, circuit, gas line and flue: keep, fix or replace, each with its reason
- Water heater in scope, and whether it shared the old flue
- Panel main amps, free slots and the new equipment's MCA
- Permits, tests and incentives that apply in this state
HVAC replacement cost in other Mississippi cities
A 3-ton system with central AC + gas furnace averages $9,250 in Gulfport; $8,950 in Jackson, $8,950 in Hattiesburg.
| City | Average · range |
|---|---|
| Jackson, MS3% less | $8,950$6,100 – $11,800 |
| Hattiesburg, MS3% less | $8,950$6,100 – $11,800 |
HVAC replacement price in Gulfport: questions
How much does a new HVAC system cost in Gulfport, MS?
About $9,250 for a 3-ton system with central AC + gas furnace, and most Gulfport quotes fall between $6,300 and $12,200. That is 12% below the U.S. average, where the same job averages $10,500.
What is the HVAC price per ton in Gulfport?
$2,108 to $4,074 per ton, about $3,091 on average with central AC + gas furnace. Smaller jobs cost more per unit, because the fixed costs are spread over less.
How much is a 4-ton system in Gulfport?
$7,150 to $13,800, about $10,500 on average, with central AC + gas furnace — $2,624 per ton.
Do you need a permit for HVAC replacement in Gulfport?
Yes — installing HVAC or fuel-burning equipment needs a permit nearly everywhere, Gulfport included. The prices on this page carry $150–$400 for the permit and inspection.
Does the price include sales tax in Mississippi?
No. The prices here are before tax; Mississippi's base state rate is 7%, plus any local rate.
What size HVAC system does a house in Gulfport need?
It is worked out with a Manual J load calculation for the house — included in the prices above — not from square footage alone. Here it is run against design temperatures of about 95°F in summer and 25°F in winter (the Mississippi median).
Other home projects in Gulfport
HVAC replacement cost in Mississippi
How these prices are built
Every price on this page comes from JobFlex's contractor price book: what a homeowner pays a licensed contractor for each step of the job, as a U.S. national average per unit, with the contractor's overhead and profit included and sales tax left out. The HVAC replacement is priced step by step, then multiplied by Gulfport's construction cost index of 0.88.
Where the price book's steps for an option add up to more than 20% over the installed price a published source gives for the whole job, every step but a permit fee is scaled down to the middle of that range: central AC + gas furnace × 0.76 (HomeCostCalcs 2026: $7,000–$14,000); heat pump + air handler × 0.76, following central AC + gas furnace; cold-climate heat pump + air handler × 0.76, following central AC + gas furnace.
The index weighs local construction wages (BLS Occupational Employment and Wage Statistics, May 2025) at 60% and the area's material prices (Craftsman ZIP-area factors) at 40%. Published indices for Gulfport, each on its own base: HUD 0.89, Craftsman 1.02. Treat any city figure as about ±5%; a contractor's quote for your house is the number to plan with.
Contractors in Gulfport build quotes like these with JobFlex's HVAC estimator.
- HomeCostCalcs 2026: furnace + AC replacement $7,000-$14,000 standard, $10,000-$20,000 high efficiency
- Today's Homeowner 2025: complete HVAC system install $5,000-$12,500