Pleasant Hill, CA · Concord · Walnut Creek · Martinez · Lafayette · Clayton
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Technician replacing a tank water heater in a garage utility area
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Emergency Water Heater Replacement in Pleasant Hill, CA

When a tank fails, the replacement cannot wait for next week, so the Pleasant Hill line stays open 24/7. If the tank is flooding the garage, close the cold water valve above it, switch off power or set the gas control to pilot, and call. We schedule a same-day install when a crew and the right unit are available.

Water heater replacement is removing a failed tank or tankless heater and installing a correctly sized new unit with new connections, a relief valve, seismic straps and a code-compliant vent or drain.

24/7 dispatchTank and tankless optionsClear price before work startsSame-day appointments when available
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A water heater failure is an emergency

A tank that leaks through its shell can release dozens of gallons before anyone notices, which is why the first minutes matter. Once the water is off, the questions move to what size and fuel type you want, and whether your venting and gas line are ready for it.

We handle both in one visit when possible. A crew arrives, confirms the size and type with you, and gives a clear price before work starts. After-hours calls are answered the same way, so you are not waiting until a showroom opens.

Repair or replace: a decision guide

If this is trueLean towardWhy
Tank is leaking through the shellReplaceThe steel liner has failed and a patch will not hold
Tank is more than about ten years old with repeated repairsReplaceEach repair buys little time on a worn tank
Tank is younger and only a part failedRepairA new element or thermocouple costs far less
Hot water runs out for a growing householdReplace with larger or tanklessCapacity, not the part, is the problem
You plan to sell soonReplace if near end of lifeA working, strapped unit removes an inspection issue

If you are unsure which row you are in, our water heater repair page explains the diagnosis first. We would rather fix a part than sell a tank you do not need.

Tank, tankless or heat pump hybrid

Traditional tank

  • Lower upfront cost
  • Familiar installation
  • Limited hot water supply per cycle
  • Standby heat loss

Tankless or hybrid

  • Hot water on demand with tankless
  • Less standby loss
  • Higher upfront cost
  • May need gas line, venting or electrical upgrades

Heat pump water heaters are a growing option in California, and some installations qualify for utility or state incentives. We do not promise a rebate, because programs change, so check the current offers before you buy. Our tankless water heater page explains sizing and maintenance for on-demand units.

What a proper replacement includes

  • Shutting off and draining the old unit, then hauling it away.
  • New flexible water connectors and a shutoff valve on the cold line.
  • A temperature and pressure relief valve with a drain pipe that ends 6 to 24 inches above the ground, per the code items in the City of Martinez handout.
  • Seismic straps: two straps, plus a third on tanks over 52 gallons.
  • A gas shutoff valve and flexible connector, or a correct electrical disconnect.
  • Checking the vent for proper rise and clearance to combustibles on gas units.
  • Testing for leaks and gas tightness before we leave.

The Martinez handout also notes that every water heater installation needs a permit, and replacements can be issued over the counter. Pleasant Hill may handle this differently, so ask the Pleasant Hill building division. We will tell you what paperwork your job needs before we start.

Tank failed overnight?

Call the 24/7 line and tell us the tank size and fuel. We will line up a replacement visit.

Call (855) 575-2890

Planning around your home

Garages are the most common location for tanks in this part of Contra Costa County, and the code asks that gas burners sit at least 18 inches above the floor unless the unit is rated for flammable vapor resistance. Closets and attics need extra attention for venting and drip pans.

If your new unit is bigger than the old one, we check that the space, the gas line and the vent can handle it before ordering.

What drives the cost of a replacement

Your price depends on the unit and the home. The usual factors:

Unit type and sizeA 40-gallon tank and a tankless system are priced very differently.
Venting and gasMoving a vent or upsizing a gas line adds labor and materials.
Code upgradesStraps, relief drains, expansion tanks and shutoffs may need to be added.
Permit and inspectionFees and timing depend on the jurisdiction.
Removal and accessAttics and tight closets take longer than garages.

Insurance generally covers the water damage from a sudden tank failure but not the replacement tank. Ask your insurer before cleanup begins.

Want your real number? Describe the job on the call and we quote it before work starts.

Where we install

Replacements are scheduled across 94523 and the surrounding area, including 94518 near Concord and 94549 in Lafayette. The Lafayette page explains hillside access details that can affect an install.

The replacement checklist above comes from the California Plumbing Code items summarized in the City of Martinez handout, and the code itself is based on the Uniform Plumbing Code (UPC). Inspectors in your city may add local requirements.

Common questions

Yes. The 24/7 line takes calls any hour, and we book a replacement visit for the same day when a crew and the right unit are available.

Many tank swaps take a few hours when the space is accessible. Tankless conversions and venting changes take longer.

Water heater installations generally need a permit in California cities, including replacements. Ask the Pleasant Hill building division, and we will help with the details.

Yes. Removal of the old unit is part of a standard replacement.

It depends on the number of people and bathrooms. We size by household use, not just by what was there before.

California Plumbing Code calls for bracing so a tank does not tip in an earthquake. The Martinez handout lists the strap layout we follow.

Still have a question about your situation? Call (855) 575-2890 any hour and describe what you are seeing.

Our Pleasant Hill service area

We take calls for Pleasant Hill and cover Concord, Walnut Creek, Martinez, Lafayette and Clayton.

Call (855) 575-2890 · 24/7