When the hot water stops, the first job is to describe what is happening, since that tells a pro where to look. This page starts with the symptom and works back to the cause. If you find water spreading, close the cold valve above the tank, provided it is safe to reach; if you smell gas, go outside before you call the gas utility (or propane supplier) and 911.
No hot water? Start here
- Is the water cold at every tap, or only at some?
- Is anything dripping, or is there water around the tank?
- Is the heater gas or electric?
- Did anything else in the house, such as the stove or the lights, stop at the same time?
Note the answers and call. Leave the burner, the panel and the controls to the pro.
Berkeley homes and heaters
Berkeley was incorporated in 1878 and is named for George Berkeley, an Anglo-Irish bishop and philosopher. This page covers ZIP codes 94702, 94703, 94704, 94705, 94707, 94708, 94709 and 94710.
Homes range from older houses and bungalows to flats, duplexes, apartment buildings and condominiums, many on sloping lots. Heaters sit in garages, basements, back porches, hallway closets and utility rooms, mostly gas, with some electric and tankless units.
What the symptom usually means here
No hot water anywhere usually points at the heater itself: a pilot or burner that has stopped, an element that has failed or a tripped control. Lukewarm water suggests a part wearing out, and hot water that runs out too soon suggests sediment or a split dip tube. Water at the base of the tank points to a leak.
Wall-hung, sized for winter flow.
End-of-life signs, and which ones mean call today
A tank gives notice before it fails, and the signs fall into two groups. Some can wait for a convenient visit: a rumble, hot water that runs out sooner, a rust ring around the base. Others mean call today: water coming from the tank body, a puddle that returns after you wipe it, a steady drip from the relief line and any smell of gas.
For any leak, close the cold valve above the heater if it's safe to reach, and call a pro. Don't wait to see if it stops. A tank can't heal, and a slow leak that is ignored can soak a floor or a wall before anyone notices, especially in a basement or an upstairs closet. Tell the pro where the water is showing and whether it is still spreading.
Older heaters tend to show several signs together: a rumble, rusty hot water, a damp base and a tank that has run well over a decade. When two or three appear at once, plan a replacement and not another repair. Ask the pro which signs they see and how long they think the tank has left.
Repair, replace or tune up.
Cold inlet water and winter recovery in Berkeley
In winter a heater has two jobs at once: warm colder water and do it faster, because the house uses more hot water on dark mornings. Recovery time is how long the tank takes to heat a fresh load after the hot supply has been drawn down, and it stretches as the incoming water gets colder.
A heater in good shape copes, but a tired one falls behind. Scale on an element, a weak burner and a cracked dip tube each cut what the tank can deliver, and the cold months expose them. Ask the technician to test those before deciding that the tank is too small, since a part is often the smaller job.
If the household has grown, or a bathroom has been added, the heater may simply be undersized for winter. In that case a larger tank, a heater with a better first-hour rating or a second unit may be the answer. Tell the pro who lives in the house and when everyone showers, so the advice fits.
Tankless sizing at a winter inlet temperature
A tankless unit is rated by how much water it can heat, and by how many degrees. Winter lowers the temperature of the water entering the unit, which raises the number of degrees it has to add, and that cuts the flow it can supply. A model that looks generous on paper can run short on a cold morning.
Size it from the coldest water of the year and the most fixtures that run together. A pair of showers and a dishwasher is a very different load from a single sink. Ask the pro to show what the unit delivers at winter conditions, and compare it with the demand you described, not with an average day.
Tankless also asks more of the house: a gas line of the right size, a vent route and a place on the wall. In a basement or a closet, those can decide the matter. Ask the installer to compare it with a tank on the same terms, including what it would take to supply it, and what the unit would need in the way of yearly descaling and a service visit.
Strapping in Berkeley
California installations secure the water heater with straps or a bracing kit whatever the make or size. Most of a full tank's weight sits high, which makes it unstable, and its gas, water and vent connections are the first thing to go if it shifts. It's part of every Berkeley replacement.
The wall behind a garage heater usually has studs for the straps. A basement tank may stand against masonry or a framed wall, which call for different fasteners, and a closet in a flat or apartment may need a board fixed across the framing.
A heater that is already installed can be braced in place. Loose straps are tightened at a visit, and any held only by plaster or drywall are refixed to solid framing. A tankless unit hangs from its bracket on the wall.
Selling the home
When a Berkeley house is sold, the heater gets a look: its age, the straps, the relief line and any rust at the connections. A tank near the end of its life can come up in the inspection. A pro can report on it beforehand, so there are no surprises. Nothing here is advice on what a sale requires.
Berkeley ZIP codes
ZIP codes served: 94702, 94703, 94704, 94705, 94707, 94708, 94709, 94710
Nearby areas with their own pages include Albany, Emeryville, El Cerrito, Orinda and Oakland. See every city in the Bay Area.
Popular services in Berkeley
Berkeley water heater FAQs
The valve is the tank's last line of defense against too much heat or pressure. If its outlet is capped, plugged or blocked, that defense is gone and the tank is put at risk. A valve that drips needs a technician, who can say why.
Several faults can leave the power on and the water cold: a failed heating element, a tripped thermal cutoff or a faulty thermostat. All of them involve live wiring inside the heater, so leave them to a technician and don't open the panels.
Usually, but confirm it when you book. Most installers drain the old tank, haul it out and dispose of it as part of the job, though some handle it separately or leave it to you. Agreeing this up front means the old unit isn't left in your garage or basement.
The water entering the house is colder in winter, so the heater has more to do and recovers more slowly, and dark mornings pack more showers into the same hours. Any weakness shows then, such as sediment or a split dip tube. A technician can find which.
Yes. Size for the coldest incoming water and the busiest hour, because that is when a heater is under the most strain. One that barely copes in summer will fall short in January. Compare first-hour ratings, not just gallons, and ask the pro to work through the numbers.
Not always. A shared heater has to cover both households at the busiest moment, while a heater per unit keeps supply, bills and upkeep separate. The installer compares the two against the building's space, its piping and how the units are used.
Often it makes sense. Flexible connectors and the gas-line fittings age, and old ones may be corroded, stiff or the wrong length for a new tank. Fitting new ones during the swap costs little beside a leak. The installer decides which to replace once the old heater is out.
Yes. Berkeley was incorporated in 1878 and is named for George Berkeley, an Anglo-Irish bishop and philosopher. This page covers ZIP codes 94702, 94703, 94704, 94705, 94707, 94708, 94709 and 94710. Share the address, and we'll connect you with a local pro.
Yes. We connect callers with independent pros across all eight Berkeley ZIP codes, from the older streets to the homes on the slopes and the apartment buildings. Albany, Emeryville and El Cerrito each have their own pages on this site, as do Orinda and Oakland.