Mississippi pricing

Furnace Replacement Cost Calculator — Mississippi

Estimate what a furnace replacement should cost by output, efficiency and venting work. Every figure below is already adjusted for Mississippi labor and material pricing.

Verified August 2026

Does furnace replacement cost cost more in Mississippi?

-15% versus the national baseline

The six coastal counties carry wind-borne debris and elevation rules; much of the interior has minimal residential permitting, which is the biggest single cost split in the state. Permit fees here run about -20% off the national average, and Homeowner permits widely allowed

Heating output

Cost per 1,000 BTU installed($)

Efficiency

Venting changes

Old furnace removal

Permit fee($)

Estimated installed cost

$3,975 – $5,647

Furnace and labor: $4,080
Venting work: $0
Removal and permit: $438

Estimates only. Local pricing, site conditions and code requirements change the real number.

What changes the number in Mississippi

Local cost indexBelow the national baseline	0.85x national
Permit fee index	0.80x national
Code basisAdopted locally	Local adoption of the IRC; coastal counties enforce wind requirements
Owner-builder posture	Homeowner permits widely allowed
Largest markets	Jackson, Gulfport, Hattiesburg

The formula

Cost = base unit cost x efficiency multiplier + venting + removal + permit

High-efficiency condensing furnaces (90%+ AFUE) need new PVC venting and a condensate drain, which is why the jump from 80% to 96% AFUE costs more than the equipment difference alone.

Frequently asked questions

How much is a new furnace installed?

Most homeowners pay $4,000 to $8,500 for a replacement gas furnace in 2026. Electric furnaces are cheaper to install but cost far more to run.

How long does a furnace last?

15 to 20 years for a gas furnace with annual service. Past year 15, repairs over about $1,500 usually favor replacement.

Sources

Sources & verification

Mississippi State Fire Marshal

Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.