The Short Answer
In Orange County, a like-for-like tank water heater replacement typically runs $1,800–$3,500 installed, depending on size (40 vs. 50 gallon), gas vs. electric, location, and current code requirements. A tankless conversion usually lands between $4,000 and $7,500 because of gas line, venting, and electrical upgrades. Exact pricing depends on your home — our estimates are free: 714-458-6715.
What’s Included in a Proper Installation
A real quote covers more than the unit: haul-away of the old heater, new supply lines and shut-off valve, expansion tank (required by code in most OC cities), seismic strapping (California requirement), drip pan and drain line where needed, plus permit and inspection. If a quote seems suspiciously cheap, one of those items is usually missing — and it surfaces later as an “extra.”
Tank vs. Tankless: The Honest Math
A tank unit costs roughly half as much up front and is the sensible choice if your budget is tight or you plan to move within a few years. Tankless costs more on day one but lasts about twice as long (20+ years vs. 8–12), takes up far less space, never runs out of hot water, and trims monthly gas usage. Over a 20-year horizon the costs often come out surprisingly close — the difference is whether you pay up front or along the way. More detail on our tank and tankless water heater page.
Repair or Replace?
A rule of thumb we share with customers: if the heater is past 8 years old AND the repair costs more than a third of replacement, put the money toward a new unit. Rusty water, rumbling sounds, or moisture around the base mean the tank itself is failing — no repair fixes a corroding tank. A leaking tank can release 40–50 gallons into your home, so don’t wait it out.
Why Orange County Homeowners Choose Delta
Family-owned, CA licensed (#1002045), insured, 5-star rated, and serving all of north Orange County for 20+ years. Most replacements are done same-day, to code, with permits handled.
No hot water or planning ahead? Call 714-458-6715 or request a free quote online.
){kind=link}