A failed water heater is an emergency when the tank is leaking or you have no hot water for a full household. Close the cold water valve above the unit, switch off its power or gas, and call our 24/7 line. Same-day and after-hours replacements are scheduled whenever a plumber has an opening.
Water heater replacement means removing the old tank, setting a new one, reconnecting water, gas or electric, venting and the relief valve discharge, and testing the whole assembly. Most tank swaps are done in a few hours.
When a leaking tank is an emergency
Water from the tank body is the clearest sign the tank is finished. The inner steel liner has corroded through, and no part fixes that. A tank holding forty or fifty gallons can empty into a garage or closet quickly, so close the supply and drain it if you can.
Attach a hose to the drain valve at the bottom of the tank and run it outside or to a floor drain. Open a hot tap upstairs so the tank drains fully. Keep the power or gas off until the plumber arrives.
Before the plumber arrives
- Move boxes and stored items away from the tank base.
- Photograph the tank label with the model, serial number and manufacture date.
- Note the fuel type and the size of the old tank in gallons.
- Mention any hot water complaints, such as running out during showers.
Choosing the right replacement
| Option | Strength | Consider |
|---|---|---|
| Gas tank | Fast recovery and low running cost | Needs venting and a gas line in good shape |
| Electric tank | Simple installation, no flue | Slower recovery, higher energy use |
| Hybrid heat pump | Very efficient | Needs clear space and airflow around the unit |
| Tankless | Endless hot water and a small footprint | Gas line size and venting may need upgrades |
What size water heater fits your Lemon Grove home
Size depends on how many people shower back to back, not on the size of the house. A two-person household often does well with a forty-gallon tank. A family of four or five usually needs fifty to sixty gallons or a high-recovery unit.
About 47 percent of Lemon Grove homes are rented, by 2020 Census figures, and landlords often choose the smallest tank that meets the code. If you are a tenant running out of hot water, ask the landlord to review the size.
Why tanks fail
Age
Most tank heaters are built to last roughly a decade or a little more. Past that, corrosion risk climbs.
Sediment
Minerals settle at the bottom, overheat the steel and shorten tank life.
Anode rod depletion
The anode rod sacrifices itself to protect the tank. Once it is gone the tank starts to rust.
Pressure
High house pressure strains the tank and fittings. An expansion tank helps in a closed system.
Helix Water District supplies Lemon Grove. We do not quote a hardness figure on this page, because the district's annual water quality report is the right source. Ask Helix for the report if you want to compare your water to the typical sediment loads.
Ready to book a replacement?
Call and describe your current heater.
How a replacement day goes
Confirm the fit
We measure the space, check venting and gas or electrical supply, and confirm the size.
Drain and remove
We shut off supply, drain the old tank and disconnect it from water, gas or power.
Set and connect
The new heater is set on a pan or platform, connected and vented, with a new relief valve and discharge pipe.
Test and explain
We fill, check for leaks, light or energize the unit and set the temperature. You get a walkthrough of the shutoffs.
Permit rules for a water heater change depend on the city, so ask the City of Lemon Grove building department which apply to your address. We discuss what to expect when we plan the visit.
What replacement costs
Insurance may cover water damage from a split tank but rarely the cost of the heater. Replacing before failure avoids the damage claim altogether.
Codes, permits and licensing
The California Plumbing Code, based on the Uniform Plumbing Code (UPC), sets the rules behind water heater replacement. Your plumber should work to that code, and you can ask which parts of your job need a permit or inspection.
Plumbing contractors in California hold a C-36 license from the Contractors State License Board, and you can check any license at cslb.ca.gov.
Frequently asked questions about water heater replacement in Lemon Grove
Often, yes, depending on availability and the model you choose. Call the 24/7 line early in the day. Evening and weekend visits are also scheduled when a plumber is free.
Yes. A leaking tank is the kind of call our night dispatch is for. Close the supply, call and we plan the swap.
Most tank replacements take a few hours. A change in fuel type or vent route can add time.
It depends on your gas line, venting and how much hot water you use. See tankless water heater service for what the change involves.
We remove it and take it away as part of the job.