SLO County & Santa Maria
Water Heater Replacement, Done the Same Day
Leaking or dead water heater? We replace standard tank units the same day — call before noon and you’ll have hot water tonight, or the labor’s free. Licensed, insured, and local to the Central Coast.
Same-day or it’s free · Lifetime workmanship guarantee
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✓ Every replacement includes a metered carbon monoxide, gas & water-leak test before we leave.
When It’s Time to Replace
Signs Your Water Heater Needs Replacing
If your water heater is leaking from the tank, past about ten years old, no longer holding temperature, or leaving you with rusty or discolored hot water, a replacement almost always beats another repair. Central Coast hard water speeds all of this up, so tanks here often need replacing sooner than the label suggests.
We give honest, no-upsell advice — if a repair makes more sense, we’ll tell you. But when it’s time, we replace both tank and tankless units, and we back every job with a lifetime workmanship guarantee. See our repair-vs-replace guide if you’re on the fence.
Same-Day Replacement
How Same-Day Replacement Works
Call before noon and most standard tank replacements are done the same day: we drain and haul away your old unit, install a new one, and safety-test it before we leave — or the installation labor is free. Your replacement unit is already on the truck, so there’s no assessment visit and no waiting on parts.
We replace standard 40- and 50-gallon gas and electric tanks, and we handle the California code items your permit requires — seismic strapping, expansion tanks, and updated valves — as clearly itemized lines in your free, flat-rate quote. You’ll know the full price before we start, and nothing lands on your invoice without your approval.
What We Replace
Every Kind of Water Heater
5-Star Rated
What Our Customers Say
Every one of our Google reviews is five stars. Read them all →
“Happy Water Heaters did an amazing job replacing my leaking water heater. Would highly recommend.”
“Called these guys for help installing a water heater and they did a great job — friendly customer service, super quick, and quality work! Highly recommended, 10/10.”
“Great service from Happy Water Heaters! They installed our tankless water heater quickly, did quality work, and were professional from start to finish. Highly recommend!”
Replacement Questions
Water Heater Replacement FAQ
How fast can you replace my water heater?
Same day for standard tank units when you call before noon. The replacement is already on the truck, so we arrive ready to install — no assessment trip, no parts run. If we don’t finish the same day, the installation labor is free.
How much does a water heater replacement cost?
We give you a free, flat-rate quote before any work starts. Your price depends on tank size, fuel type, and any code-required items your home needs — but you’ll know the full number upfront, and nothing is added without your approval. No surprise charges.
How do I know if I should replace instead of repair?
If it’s leaking from the tank, past about ten years old, no longer holding temperature, or giving you rusty water, replacement is usually the better call. If it’s a minor part on a newer unit, a repair may be fine — and we’ll tell you honestly either way.
Do you replace tankless water heaters too?
Yes. We replace tankless units and convert tank systems to tankless. The same-day guarantee applies to tank units, but our lifetime workmanship guarantee covers both tank and tankless.
Are you licensed and insured?
Yes — Happy Water Heaters is a DBA of Central Plumbing Inc., CSLB License #1086463, fully licensed and insured. We pull permits and handle the code-required items your replacement needs.
No Hot Water? We’ll Replace It Today.
Same-day tank replacement across SLO County and Santa Maria — or the installation labor is free.
Serving all of San Luis Obispo County & Santa Maria
