50 Gallon Water Heater Replacement Cost
Replacing a 50 gallon water heater costs $800 to $1,800 installed for electric and $1,000 to $2,500 for natural gas in 2026, including unit, labour, connections, and haul-away. The 50 gallon size is the single most common residential replacement: it fits a household of 3 to 4 people. Below is the full installed-cost breakdown by fuel, the annual operating cost, and what pushes a quote toward the top of the range.
50 gallon replacement cost at a glance
Total installed cost (unit + labour + connections + haul-away). Permits add $50-$200 where required.
50 gallon installed cost breakdown by fuel
| Fuel / vent type | Unit cost | Labour | Total installed |
|---|---|---|---|
| 50 gal electric | $400-$900 | $400-$900 | $800-$1,800 |
| 50 gal gas (atmospheric vent) | $550-$1,100 | $450-$1,400 | $1,000-$2,500 |
| 50 gal gas (power vent) | $900-$1,500 | $600-$1,500 | $1,500-$3,000 |
| 50 gal heat pump / hybrid | $1,200-$2,400 | $600-$1,600 | $2,000-$4,000 |
Triangulated from HomeGuide, Fixr, and Angi 2026 install data, plus manufacturer MSRP for Rheem, AO Smith, and Bradford White. Snapshot June 2026.
50 gallon annual operating cost (gas vs electric vs heat pump)
Replacement cost is a one-time number; the operating cost runs every year for the 8 to 15 year life of the tank. On a 50 gallon unit serving a family of four, the fuel choice changes the annual bill by several hundred dollars. A standard gas tank burns roughly 200 to 250 therms a year; at the US average residential gas rate that is about $325 to $475, though high-rate states such as California push it to $550 to $700. Electric resistance is more expensive to run despite the cheaper install. A heat pump (hybrid) unit, which moves heat rather than generating it, runs at a third of the cost of resistance electric.
| 50 gal type | Annual energy use | Annual operating cost | 10-year operating cost |
|---|---|---|---|
| Heat pump (hybrid) | ~1,400-1,900 kWh | $110-$160 | $1,100-$1,600 |
| Natural gas | ~200-250 therms | $325-$475 | $3,250-$4,750 |
| Electric resistance | ~4,000-4,900 kWh | $450-$575 | $4,500-$5,750 |
Operating-cost estimates based on EIA average residential gas and electricity rates and ENERGY STAR water-heater energy-use data. Actual cost varies with local utility rates, household size, and inlet water temperature. See the full gas vs electric ownership comparison.
What pushes a 50 gallon quote toward the top of the range
Code upgrades on replacement
Most current code requires a thermal expansion tank ($100-$180 installed), a new T&P discharge line, and often a drain pan with a drain line if the unit sits above finished space ($100-$250). Older 50 gallon installs frequently lack these, so a code-compliant replacement adds them.
Vent type (gas only)
An atmospheric-vent 50 gal unit into a healthy chimney is the cheapest gas path. No chimney means a power-vent unit, which adds $300-$700 to the unit cost and a new exterior wall penetration.
Location and access
A garage-floor or basement install is quick. An attic or second-floor closet adds labour for hauling the old tank out and the new one in, plus mandatory pan and drain. Tight closets may need a door or louver modification.
Emergency vs scheduled
A same-day or weekend emergency 50 gallon swap carries a $150-$400 premium over a scheduled weekday appointment. If your tank is leaking, see the emergency replacement guide before paying a rush rate you may not need.