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Gas tank water heater replacement cost in San Francisco, CA

Installed, 50 gallon, standard vent

Low$1,800
Typical$2,100
High$2,950

Metro area: San Francisco-Oakland-Fremont, CA. Wages: BLS, May 2025. Permit notes checked October 2026.

A typical gas water heater (50 gallon, standard vent) costs about $2,100 installed in the San Francisco area, 5% above the national figure, because plumbers here earn a median $37 an hour against $31 nationally.

Gas tank water heater (50 gallon, standard vent), installed

Prices for: San Francisco-Oakland-Fremont, CA

Low$1,800
Typical$2,100
High$2,950

Unit $1,080 (online list price, middle of 7 listings) plus installation about $1,000 for this area. Permit fees and code extras are listed below the table.

How this estimate is built

Prices by size in San Francisco

SizeLowTypicalHighNational typical
40 gallon, standard vent$1,750$2,000$2,750$1,900
50 gallon, standard vent$1,800$2,100$2,950$2,000
75 gallon, standard vent$2,550$2,900$3,650$2,800
40 gallon, power vent$2,550$2,850$3,550$2,750
50 gallon, power vent$2,700$2,950$3,800$2,850

Local labor: what plumbers earn here

Hourly wageSan Francisco metroUnited States
25th percentile$30$24
Median$37$31
75th percentile$59$41

The San Francisco market

San Francisco's Department of Building Inspection issues plumbing and mechanical permits. Its 2026 fee table lists Category 1M, a mechanical gas appliance (furnace, hydronic heat or heat pump) in a single residential unit, at $290 per permit with a maximum of two inspections. No city page reviewed names water heaters; a permit is likely, and if a heater is classed as a single plumbing fixture (Category 1P) the fee is also $290, but confirm with DBI. Online applicants must be licensed contractors registered with the city, and only owner-installers of stand-alone single-family homes may apply themselves. Unlisted work is billed hourly. Mild weather keeps cooling loads low in the city itself, while state law still requires seismic strapping on every replacement water heater. Oakland, Fremont and the East Bay suburbs run separate building departments.

Sellers must certify seismic bracing in writing when a home is sold, so ask the plumber to note the straps on the invoice. Many city homes tuck the heater into a garage under the living space, where venting and clearances are tight. A replacement tank that is taller or wider may not fit the old spot, so ask the plumber to measure first. Gas heats water in 78% of California homes, so most quotes here are gas.

Permits in San Francisco

Permit for this jobUnclear (likely yes: plumbing permit needed before 'replacing pipes'; fee table has a single-fixture category, but no page names water heaters)
Fee$290 per permit (Category 1M furnace/hydronic/heat pump, single residential unit; max two inspections). Category 1P (single plumbing fixture) also $290 if a water heater is classed there. Unlisted work at $519/hour.
Who can pull itSF-registered licensed contractor, or owner-installer of a stand-alone single-family dwelling
InspectionYes (fee covers up to two inspections; concealed piping inspected before cover)

Rebates in California

HEAR: paused. HOMES: announced, not open yet. Source: California Energy Commission, checked October 13, 2026.

  • TECH Clean California: Statewide heat pump HVAC and heat pump water heater incentives via contractors; also administers HEEHRA (fully reserved)
  • Golden State Rebates: Instant rebates on efficient appliances at retailers

What these programs cover, and other states

Other systems in San Francisco

Gas tank water heater cost in other metros

Sources