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Concord, CA · plumbing service

Water Heater Replacement in Concord, CA

Tanks in 1970s–90s homes reach end of life; seismic strapping is checked on replacement. Call to be connected with an independent, licensed plumber who handles water heater replacement in Concord; they diagnose the problem and quote the work before starting.

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Common signs

  • Water around the tank base
  • rusty hot water
  • a tank past 10 years

Water Heater Replacement services in Concord

Problems water heater replacement fixes

  • A leaking tank
  • A tank past roughly 10 to 12 years with frequent repairs
  • Rusty hot water or sediment noise
  • Not enough hot water for the household

Why water heater replacement comes up in Concord

Tanks in 1970s–90s homes reach end of life; seismic strapping is checked on replacement.

64% of Concord's occupied homes are owner-occupied. If you rent, the water heater is normally the landlord's to repair or replace, so report a leak to them in writing as well as calling for help.

Typical home built
1972
Homes before 1980
72%
Winter freezes
Rare

How the work is done

  1. 1Size the replacementMatch capacity and fuel to the household, or compare tankless.
  2. 2PermitMany cities require a permit and inspection for water heater replacement.
  3. 3Remove and installDrain and remove the old tank; install with code-required venting, relief valve piping and, where required, an expansion tank.
  4. 4Test and explainCheck for leaks and correct temperature, and show where the shutoffs are.

What affects the price

The plumbing company sets the price after seeing the job; ask for it in writing before work starts.

  • Tank or tankless, gas or electric
  • Capacity
  • Code updates such as an expansion tank, venting or a drain pan
  • Location and access
  • Permit and haul-away

Plumbing work we connect Concord homeowners with

Water Heater Replacement in Concord: questions

Does Concord require a permit just to replace an old water heater?

Yes. Concord's bulletin IB-022 requires a permit for water heaters whether new or replacement. Call the Building Division at (925) 671-3107 with questions; your installer typically pulls the permit and schedules the inspection.

Is Concord's water hard on tank water heaters?

Moderately soft. CCWD's 2025 report shows water from its Bollman plant in Concord averaging 74 mg/L hardness, about 4 grains per gallon. Scale builds slowly, but flushing the tank yearly still extends heater life.

Why is water heater replacement a common call in Concord?

Tanks in 1970s–90s homes reach end of life; seismic strapping is checked on replacement.

How old are most homes in Concord?

The median home in Concord was built in 1972, and 72% of homes were built before 1980 (U.S. Census Bureau, American Community Survey).

When is a leaking water heater an emergency in Concord?

A leak from the tank itself won't stop and usually means replacement; turn off the gas or power and the cold-water valve, then call. In Concord: tanks in 1970s–90s homes reach end of life; seismic strapping is checked on replacement.

Who supplies water in Concord?

Contra Costa Water District. Past the meter, plumbing is the owner's.

Water Heater Replacement near Concord

More plumbing services in Concord

Local rules and details for Concord

Concord facts behind this page

  • The median home in Concord was built in 1972. [1]
  • About 72% of Concord's housing units were built before 1980, the era of galvanized steel supply pipe, cast iron drains and clay sewer laterals. [1]
  • Contra Costa Water District's source is the Sacramento-San Joaquin Delta; when Delta water gets salty, CCWD blends it with higher-quality water stored in Los Vaqueros Reservoir. [2]
  • Concord's Building Division Information Bulletin IB-022, Work Requiring a Permit for single family and duplex projects, revised May 18, 2023, lists a water heater as requiring a permit whether new or a replacement. The bulletin adds that all work, permitted or not, must comply with the city's Construction Codes and Development Standards, and lists the Building Division at (925) 671-3107 for questions. [3]
  • Contra Costa Water District, which treats drinking water at the Bollman Water Treatment Plant in Concord and the Randall-Bold plant in Oakley, reports in its 2025 Annual Water Quality Report that hardness at Bollman ranged from 59 to 87 mg/L, averaging 74 mg/L. Calcium averaged 15 mg/L and pH averaged 8.6 for water from the Concord plant. [4]

Concord rules and programs for water heater replacement

  • Concord's Building Division Information Bulletin IB-022, Work Requiring a Permit for single family and duplex projects, revised May 18, 2023, lists a water heater as requiring a permit whether new or a replacement. The bulletin adds that all work, permitted or not, must comply with the city's Construction Codes and Development Standards, and lists the Building Division at (925) 671-3107 for questions. [3]
  • Contra Costa Water District, which treats drinking water at the Bollman Water Treatment Plant in Concord and the Randall-Bold plant in Oakley, reports in its 2025 Annual Water Quality Report that hardness at Bollman ranged from 59 to 87 mg/L, averaging 74 mg/L. Calcium averaged 15 mg/L and pH averaged 8.6 for water from the Concord plant. [4]

Other common plumbing calls in Concord

  • Repiping: 1950s–60s ranch homes still carry galvanized supply lines.
  • Sewer Line Repair: clay laterals under mature trees crack and fill with roots.

Safety first

Leaking tank: shut its power or gas and the cold-water valve.

Sources (4)
  1. U.S. Census Bureau, ACS 2024 1-year (B25035) · checked 2026-10-01
  2. Contra Costa Water District, About Los Vaqueros · checked 2026-10-05
  3. City of Concord Building Division, IB-022 Work Requiring a Permit · checked 2026-10-20
  4. Contra Costa Water District, 2025 Annual Water Quality Report · checked 2026-10-20
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