Water Heater Replacement Cost Guide for New Haven Homeowners

Water Heater Replacement Costs at a Glance

• 40-gallon tank, installed: $800–$2,300.
• 50-gallon tank, installed: $800–$2,500.
• Tankless unit, installed: $1,400–$3,900.
• Labor only, tank replacement: $150–$450.
• Labor only, tankless replacement: $600–$1,900, higher because tankless often means new gas or electric lines and venting.

Ranges reflect 2026 national plumbing cost data. Labor typically accounts for around half the total on a standard tank swap, get a written quote that breaks out unit cost from labor.

Tank vs. Tankless: Which Costs Less Over Time

• Tank: Lower upfront cost, simpler install in most homes, but typically lasts 8 to 12 years and can run out of hot water during heavy use.
• Tankless: Higher upfront cost and often requires new lines, but lasts longer, usually 15 to 20 years, and heats water on demand instead of storing it.

Signs It's Time to Replace

• The unit is over 10 to 12 years old, most tanks aren't built to last much longer.
• Water coming out rusty or discolored, a sign the tank itself is corroding inside.
• Any leak from the bottom seam of the tank, that's the tank itself failing.
• Rumbling or popping noises during heating, usually sediment buildup hardening at the bottom of the tank.
• The pilot light or heating element has failed more than once, a repeat failure usually means the unit is on its way out.

What Pushes the Price Up

Switching from tank to tankless is the biggest cost driver, since it often means running new gas or electric supply and adding venting that a tank never needed. Code-required upgrades, like an expansion tank or updated venting on an older install, and a tight closet or attic install that takes longer to access both add to the labor side of the quote.

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