Water Heater Replacement · St. Marys, GA

Water Heater Replacement in St. Marys, GA: 2026 Costs & Local FAQs

Updated 2026-10-18 · Reviewed by the HomeServiceBud Editorial Team

Quick answer

Water heater replacement in St. Marys typically costs about $882–$1,826 nationally, with tank units $600–$2,500 and tankless $1,400–$3,900 installed. Adjusted for Georgia prices, plan on roughly $780–$1,600. In St. Marys, the biggest local factors are long, hot cooling season.

Key takeaways

  • Typical cost in St. Marys: $780–$1,600 (per installed unit); national range $882–$1,826.
  • Biggest local factors: long, hot cooling season.
  • How long it takes: A tank-for-tank swap is usually done in a day; converting to tankless takes about twice as long.
  • Permits: Most areas require a permit for water heater replacement, typically $25–$300.
  • Best timing: Replace an aging tank before it fails; heat pump units perform well in warm weather.
  • Before you hire: get at least three written, itemized quotes from licensed, insured Georgia contractors.

How much does water heater replacement cost in St. Marys, GA?

Water heater replacement typically costs $882–$1,826, with an average around $1,348. Tankless and solar units cost more, and converting from tank to tankless adds labor. Georgia prices run 11% below the U.S. average, so a typical St. Marys job lands around $780–$1,600. Local labor rates, permit fees and your home's specifics move the final number.

ItemTypical costNotes
Tank water heater (gas or electric)$600–$2,500Installed
Tankless water heater$1,400–$3,900Installed
Hybrid heat pump water heater$1,200–$3,500Installed
Solar water heater$1,700–$5,500Installed
Labor, tank-for-tank swap$150–$450Tankless swap $600–$1,900
Tank-to-tankless conversion labor$150–$2,500About twice as long as a swap
Permit$25–$300Plus $50–$300 for natural gas work

In a smaller community like St. Marys, some specialists travel in from nearby cities and may add a trip charge. Ask whether travel is included, and consider bundling projects.

How we calculate costs

National ranges come from published cost surveys (cited below). Local estimates apply an approximate state cost index. Read our methodology.

Water Heater Replacement cost questions for St. Marys, GA

  • What is the cost of tank water heater (gas or electric) in St. Marys, GA? The typical cost of tank water heater (gas or electric) in St. Marys, GA is $530–$2,200, adjusted for Georgia prices (national $600–$2,500). Installed.
  • What is the cost of tankless water heater in St. Marys, GA? The typical cost of tankless water heater in St. Marys, GA is $1,200–$3,500, adjusted for Georgia prices (national $1,400–$3,900). Installed.
  • What is the cost of hybrid heat pump water heater in St. Marys, GA? The typical cost of hybrid heat pump water heater in St. Marys, GA is $1,100–$3,100, adjusted for Georgia prices (national $1,200–$3,500). Installed.
  • What is the cost of solar water heater in St. Marys, GA? The typical cost of solar water heater in St. Marys, GA is $1,500–$4,900, adjusted for Georgia prices (national $1,700–$5,500). Installed.
  • What is the cost of labor, tank-for-tank swap in St. Marys, GA? The typical cost of labor, tank-for-tank swap in St. Marys, GA is $130–$400, adjusted for Georgia prices (national $150–$450). Tankless swap $600–$1,900.
  • What is the cost of tank-to-tankless conversion labor in St. Marys, GA? The typical cost of tank-to-tankless conversion labor in St. Marys, GA is $130–$2,200, adjusted for Georgia prices (national $150–$2,500). About twice as long as a swap.
  • What is the cost of permit in St. Marys, GA? The typical cost of permit in St. Marys, GA is $20–$270, adjusted for Georgia prices (national $25–$300). Plus $50–$300 for natural gas work.
  • What is the cost of old unit haul-away in St. Marys, GA? The typical cost of old unit haul-away in St. Marys, GA is $90–$450, adjusted for Georgia prices (national $100–$500).
  • What is the cost of expansion tank in St. Marys, GA? The typical cost of expansion tank in St. Marys, GA is $80–$310, adjusted for Georgia prices (national $90–$350).
  • What is the cost of new gas line in St. Marys, GA? The typical cost of new gas line in St. Marys, GA is $230–$730, adjusted for Georgia prices (national $260–$820). Electric tankless may need a new circuit or subpanel ($500–$1,000).

What affects water heater replacement in St. Marys

Long, hot cooling seasonWarm weather around St. Marys suits heat pump water heaters, which pull heat from the surrounding air.

St. Marys has hot, humid summers and mild winters. Replace an aging tank before it fails; heat pump units perform well in warm weather.

Signs you need a new water heater

  • Rusty or discolored hot water
  • Leaks or water pooling around the base
  • Popping or banging noises
  • Hot water runs out faster than it used to
  • Lukewarm or no hot water
  • The tank is 10 or more years old

Common questions about water heater replacement in St. Marys

How much does it cost to replace a water heater in St. Marys, GA?

Most water heater replacements cost about $780–$1,600 in St. Marys, GA. Tank units run $600–$2,500 installed and tankless units $1,400–$3,900.

Is a tankless water heater worth the cost?

It can be if you'll stay long enough: tankless units cost more up front but typically last 20+ years versus 8–12 for a tank.

How much does a tank-to-tankless conversion cost?

Conversion labor alone runs $150–$2,500 because it takes about twice as long as a standard swap, and gas lines or electrical upgrades may add more.

Should I repair or replace a leaking water heater?

A leak from the tank itself usually means replacement. Leaks from valves or fittings can often be repaired for $230–$1,000.

Timeline, permits and DIY in St. Marys

How long it takes

A tank-for-tank swap is usually done in a day; converting to tankless takes about twice as long.

Permits

Most areas require a permit for water heater replacement, typically $25–$300. Check with the St. Marys building department for local rules.

DIY or hire a pro?

Hire a licensed plumber: gas lines, venting and carbon monoxide risks make DIY replacement dangerous.

Questions to ask St. Marys contractors

Ask every bidder the same questions so you can compare quotes apples to apples.

  • Does the quote include permit, haul-away and an expansion tank?
  • Is my gas line or electrical circuit sized for the new unit?
  • What is the tank and parts warranty?
  • Would a heat pump or tankless unit pay off for my household?

Maintenance that prevents costly repairs

  • Flush the tank once a year
  • Test the pressure-relief valve yearly
  • Check the anode rod every few years

How to hire for water heater replacement in St. Marys

  1. Use a licensed plumber and confirm they pull the permit.
  2. Ask for a quote that includes haul-away, expansion tank and code upgrades.
  3. Compare tank, tankless and heat pump options for your fuel and usage.
  4. Get the parts and labor warranties in writing.

Water Heater Replacement in St. Marys: FAQs

How much does water heater replacement cost in St. Marys, GA?

Most replacements cost $882–$1,826 nationally before local labor and permit differences. Tankless units typically cost $1,400–$3,900 installed.

Do I need a permit to replace a water heater in St. Marys?

Usually yes. Your plumber typically pulls the permit; costs commonly run $25–$300.

How much does water heater replacement cost in St. Marys compared to the national average?

With Georgia's regional cost index of 0.89, expect roughly $780–$1,600 in St. Marys, versus $882–$1,826 nationally.

How long does water heater replacement take in St. Marys?

A tank-for-tank swap is usually done in a day; converting to tankless takes about twice as long. Permit and inspection scheduling in St. Marys can add a few days.

Do I need a permit for water heater replacement in St. Marys?

Most areas require a permit for water heater replacement, typically $25–$300. Confirm with the St. Marys or county building department.

Which St. Marys ZIP codes does this guide cover?

This guide applies to St. Marys ZIP codes 31558, plus the surrounding area.

Water Heater Replacement near St. Marys

Jacksonville, FL
28 mi away · pop. 868,031Kings Bay Base, GA
5 mi away · pop. 1,777Fernandina Beach, FL
7 mi away · pop. 12,339Yulee, FL
8 mi away · pop. 11,491Kingsland, GA
10 mi away · pop. 16,487Woodbine, GA
19 mi away · pop. 1,285Callahan, FL
21 mi away · pop. 1,185Nassau Village-Ratliff, FL
22 mi away · pop. 5,337Hilliard, FL
22 mi away · pop. 3,154

Other home services in St. Marys

HVACAC, furnace and heat pump repair, replacement and costs$6,200–$10,700RoofingRoof replacement, leak repair, hail damage and insurance$6,000–$22,300Kitchen RemodelingKitchen remodel costs, timelines, permits and ROI$8,900–$62,300Bathroom RemodelingBathroom remodel costs, timelines, showers and ROI$5,900–$16,000Water Damage RestorationLeaks, floods, burst pipes, drying and insurance$1,100–$4,800Fire Damage RestorationFire, smoke and soot cleanup, odor removal and insurance$2,600–$34,100Mold RemediationMold removal, testing, costs and insurance$1,300–$4,500Garage Door RepairSprings, cables, openers, off-track doors and costs$70–$600Foundation RepairCracks, settling, piers, slab repair and costs$1,900–$7,000Sewer Line Repair & ReplacementSewer line repair, dig replacement and trenchless pipe bursting or lining costs$1,200–$4,700Slab Leak RepairFinding and fixing leaks under a concrete slab: detection, reroute and lining$560–$3,900Electrical Panel Upgrade100 to 200 amp upgrades, panel replacement, meter and subpanel costs$1,200–$2,700Window ReplacementNew window costs by type, frame material and installation method$270–$1,900Siding ReplacementSiding costs per square foot by material, plus removal, labor and permits$7,600–$17,800Gutter InstallationGutter costs per linear foot by material, plus downspouts, guards and removal$550–$1,500Attic InsulationAttic insulation costs by type, recommended R-values and when to add more$1,500–$2,200

Sources: Angi — Water heater replacement cost · Bob Vila — Water heater replacement cost · ENERGY STAR — Heat pump water heater savings. Ranges are rounded estimates; see our editorial policy.

Local risk factors reflect general Georgia climate patterns; check FEMA's National Risk Index for county-level ratings. Local estimates apply an approximate regional cost index to national ranges.