Water Heater Repair Cost in Marietta, GA (2026)

What you actually pay

Most water heater repairs in Marietta land between $150 and $500. Full replacements run $1,500 to $4,500 depending on tank or tankless and capacity. The numbers below come from real jobs we ran across Cobb County over the past three months.

Common repair price ranges

• Thermocouple swap: $150 to $250
• Heating element on electric: $200 to $350
• Thermostat on electric: $200 to $300
• Gas control valve: $400 to $600
• Anode rod swap: $175 to $275
• Full tank flush: $125 to $200
• T&P valve swap: $150 to $225
• Expansion tank install: $200 to $325
• Tankless descale: $250 to $400

Replacement price ranges

• 40 gallon gas tank installed: $1,500 to $2,200
• 50 gallon gas tank installed: $1,700 to $2,500
• 75 gallon gas tank installed: $2,500 to $3,500
• Tankless install on a single-family home: $3,500 to $5,500
• Heat pump hybrid installed: $3,000 to $4,500 before rebates

What pushes the price up

Older homes around the Marietta Square or along Roswell Street often hide undersized 1/2 inch gas lines that need an upsize for a tankless or a 75 gallon tank. East Cobb and Sandy Springs builds on a pressure regulator usually need an expansion tank added for code. Either of those adds $300 to $800 to the job. The upside is the install passes inspection at City of Marietta or Cobb County the first time.

Rebates and tax credits in Georgia

Heat pump hybrid water heaters qualify for the federal 25C tax credit, up to $2,000. Georgia Power runs rebates on qualifying heat pump and high-efficiency tankless models. Ask about eligibility when you call.

Why flat-rate matters

Every quote is flat. You see the total before any work starts. No hourly meter, no surprise parts markup, no upsell at the end.

Get a real number

Call (770) 555-0100 for a phone estimate or to book a free on-site quote. Same-day slots across Cobb County and metro Atlanta.