Cost Guide · Updated May 2026
How much does water heater replacement cost?
Replacing a water heater costs $1,200–$4,500 on average. A standard tank unit runs $600–$2,500 installed, while a tankless system runs $1,400–$3,900+ (whole-house gas units can reach $5,500). Labor is roughly half the total.
Cost by type
| Type | Installed cost |
|---|---|
| Tank water heater (installed) | $600–$2,500 |
| Tankless — electric (installed) | $1,800–$4,200 |
| Tankless — gas (installed) | $2,700–$5,500 |
| Labor (share of total) | ~50% |
Cost by tank size
| Capacity | Typical household | Installed cost |
|---|---|---|
| 40 gallon | 1–3 people | $700–$2,300 |
| 50 gallon | 3–4 people | $700–$3,100 |
| 75 gallon | 5+ people | $2,000–$5,800 |
| Tankless | on demand | $1,400–$3,900+ |
Installed. Gas units, premium efficiency, and larger capacities sit at the high end; labor is roughly half the bill.
What's included
- The new unit and removal/disposal of the old one
- Water, gas, or electric connections and new fittings/valves
- Basic code updates, labor, and often a permit
- Usually separate (tankless): gas-line and electrical-panel upgrades
Signs you need a replacement
- The unit is 8–12+ years old
- Rust-colored water or rumbling/popping sounds
- Leaking around the base of the tank
- Not enough hot water, or rising energy bills
What moves the price
- Tank vs. tankless, and gas vs. electric
- Capacity / size needed for the household
- Tankless conversions: gas-line ($300–$1,500) and panel ($500–$2,500) work
- Condition of existing connections, code upgrades, and local labor rates
How to save on water heater replacement
- Right-size the unit to your household — bigger isn't always better.
- Check manufacturer rebates and energy-efficiency tax credits.
- Get multiple quotes — labor is roughly half the bill and varies widely.
- Weigh tankless's long-term savings against its higher install and upgrade costs.
- Flush and maintain the unit to extend its life and delay the next replacement.
FAQ
How much does it cost to replace a water heater?
Is a tankless water heater worth the higher cost?
What hidden costs come with a tankless install?
What affects water heater replacement cost?
For plumbers
Quote a water-heater swap on site and get paid the same day. JobStack drafts the estimate, books the job, and chases the invoice for you.
Try the free estimate generatorCost ranges are national estimates compiled from cost-data sources including HomeAdvisor and industry water-heater cost guides (2025–2026). Actual prices vary by type, fuel, capacity, and region. This is a planning guide, not a quote. Prefer an instant estimate? Try the water heater cost calculator. More: all cost guides.