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Mississippi

Water Heater Installation Cost in Mississippi

Estimate the installed cost of replacing a tank water heater in Mississippi — by fuel (gas / electric / propane), size (40 / 50 / 80 gallon), and efficiency tier. Calibrated to local plumber labor (0.82× the U.S. average) and Mississippi energy prices for the operating-cost comparison.

Quick answer: a standard 50-gallon tank runs about $1,200–$2,750 installed in Mississippi. Power-vent and condensing tiers run higher; heat pump water heaters $2,200–$4,200; permit $75–$300.

Planning range, not a contractor quote. Verify state and utility programs with the linked administrator before claiming — caps, eligibility, and timelines change.

Plumber labor
0.82×
vs. U.S. average (BLS)
Electricity
13.4¢/kWh
EIA retail average
Natural gas
$1.30/therm
gas-vs-electric comparison

Optional — auto-sets state

Installed cost · Atmospheric-vent 0.62 UEF 50-gal · Mississippi

$1,806

range $1,185 – $2,766

Annual operating cost

$286/yr

UEF 0.62

HPWH alternative

$3,100

Saves $101/yr op

Cost breakdown

  • Equipment (50 gal)$1,000
  • Install + venting$656
  • Permit & inspection$150
  • Total (mid)$1,806

Three-way comparison

  • Standard tank (this calc)$1,806
  • HPWH (50-gal hybrid)$3,100
  • Tankless gas$4,300

HPWH typically saves $300-500/yr in operating cost vs gas tank; HEEHRA rebate up to $1,750 for income-qualified buyers.

Federal note: the 25C credit for high-efficiency gas water heaters expired 2025-12-31 (OBBBA). HEEHRA is electric-only — tank gas/propane water heaters do not qualify. Some gas utilities still offer $50-300 rebates on condensing tank installs. HPWH qualifies for HEEHRA up to $1,750.

Quote check — what to ask

  • · UEF (Uniform Energy Factor) in writing — replaces older EF rating.
  • · Expansion tank included (required by most codes since 2012).
  • · T&P (temperature/pressure) valve and drip pan included.
  • · Sediment trap on gas line, dielectric unions on water lines.
  • · Old unit haul-away included.
  • · Combustion-air check (CO test) at startup for atmospheric-vent gas.
  • · 6+ year tank warranty (premium tier offers 12 years).

Thinking beyond a like-for-like swap?

A standard tank is the cheapest install, but at Mississippi's electricity price of 13.4¢/kWh, a heat pump water heater costs roughly one-third as much to run as electric resistance — and rebates may apply where standard tanks get none.

Heat pump water heater cost in Mississippi

Frequently asked questions

How much does water heater installation cost in Mississippi?

A standard 50-gallon tank water heater runs about $1,200 to $2,750 installed in Mississippi, including the unit, plumber labor at the state's 0.82x multiplier vs. the U.S. average, and the permit. Power-vent and condensing gas tiers run higher; a heat pump water heater runs $2,200-$4,200. Use the calculator above to refine by fuel, size, and tier.

Is gas or electric cheaper to run in Mississippi?

At Mississippi's current prices - electricity 13.4 cents/kWh and natural gas $1.30/therm - a standard gas tank costs roughly $287/year to run vs. $654/year for an electric resistance tank (EIA state retail prices; usage per DOE test-procedure assumptions for a 50-gal tank). A heat pump water heater cuts the electric figure by roughly two-thirds, which usually makes it the cheapest option to run regardless of the gas-vs-electric split.

Do I need a permit to replace a water heater in Mississippi?

Yes - nearly every Mississippi jurisdiction requires a plumbing permit for a water heater replacement (plus an electrical permit for new circuits). The inspection checks venting, the temperature-and-pressure relief valve, expansion tank, and strapping where required. Permits typically run $75-$300. Unpermitted installs can void homeowner insurance claims and complicate a sale.

When is a heat pump water heater worth it in Mississippi?

If you're on electric resistance today, almost always: a HPWH uses about one-third the electricity, saving roughly $436/year at Mississippi rates, which pays back the $1,000-$1,800 upfront premium in a few years. If you are on cheap natural gas, the math is closer - run both numbers in the dedicated calculator at /heat-pump-water-heater-cost-ms/. Income-qualified households may also get up to $1,750 via DOE HEEHRA where Mississippi has launched the program (https://www.energy.gov/scep/home-energy-rebates-programs).

My water heater died - what does an emergency replacement cost in Mississippi?

Same-day emergency swaps typically add $300-$800 over the planned-replacement price: after-hours labor, whatever unit is on the truck (rarely the best-value model), and no time for competing quotes. If your tank is 10+ years old, pricing the replacement now - before it fails - is the single best way to avoid paying the emergency premium and getting stuck with a low-efficiency unit for the next decade.

Water heater installation cost by state