Before the day
Most of the important decisions happen before anyone arrives: the size and fuel of the new heater, whether it goes in the same spot, and whether the permit will be pulled. Ask the plumber to confirm these in writing, along with what is included for removal, straps, connectors, the relief line and any vent or gas-line work.
Clear a path from the heater to the street. In many Brea tract homes the heater sits in the garage or an outside closet, which makes access easier, but cars, shelves and stored boxes still get in the way of moving a full-size tank.
How the work usually unfolds
- Arrival
- The plumber confirms the plan, checks access and looks at the existing gas line, vent and water connections.
- Shutdown
- Gas or power to the heater is turned off and the cold-water supply valve is closed.
- Draining
- The old tank is drained through a hose to a safe drain point. Heavy sediment can make this slow.
- Removal
- Water, gas or electrical, and vent connections are disconnected, and the old heater is carried out.
- Setting
- The new heater is placed level, on a stand where required, and strapped against earthquakes.
- Connecting
- Water lines, gas or electrical, the vent and the relief valve discharge line are connected.
- Start-up
- The tank is filled with taps open to purge air, then the heater is lit or powered.
- Checks
- Connections are leak-tested, venting is checked and the water temperature is set.
Check before the plumber leaves
What changes the scope
- Location
- Attic, closet or tight garage spots take more time than open access
- Different size
- A taller or wider tank can need new vent pieces or a new stand
- Code items
- Expansion tank, drain pan or vent work if the old install was out of date
- Permit and inspection
- An inspection visit may be scheduled after the install; check with the city
Questions to ask at quote time
- Will you pull the permit, and who is present for the inspection?
- Does the price include haul-away of the old heater?
- Are straps, connectors and the relief discharge line new?
- Will you replace the cold-water shutoff valve if it is old?
- Is an expansion tank needed on my water system?
Common questions
Do I need to be home during a water heater replacement?
Usually someone needs to provide access and should be there at the end to see the shutoffs and paperwork. Ask the plumber what they need from you.
Why did the plumber replace the shutoff valve too?
Old shutoff valves can be stiff or leak once moved. Replacing a worn valve while the system is drained is common, but ask about it at quote time so it is not a surprise.
Can the new heater go in a different spot?
Sometimes, but moving it means new water, gas or electrical, and vent runs, and may change permit requirements. Ask for that work to be quoted separately.
General information for Brea, not a quote or professional advice. In an emergency, call 911.