Water Heater Repair, Replacement & Tankless Installation

Cold showers, rusty water, or a tank that's leaking onto the garage floor? We install, repair, and replace tank and tankless water heaters across Southern California — usually within 24 hours.

(562) 366-0303 Request Service

What we do

A failing water heater rarely picks a convenient time to die. We keep popular gas and electric tank models (40, 50, 75 gallon) and leading tankless units (Rinnai, Navien, Noritz, Rheem) on the truck so most replacements can be completed same-day or next-day. Every install includes new flex connectors, an updated T&P valve, a code-compliant earthquake strap, and a fresh sediment trap.

Tankless water heaters are an increasingly popular upgrade in Southern California homes — they deliver endless hot water, free up garage space, and last roughly twice as long as a traditional tank. We'll evaluate your gas line size, venting path, and household demand to confirm a tankless unit is a good fit before recommending one.

Need a repair instead of a replacement? We diagnose pilot light failures, faulty thermocouples, bad heating elements, stuck T&P valves, sediment buildup, and leaking tanks. If your unit is under 8 years old and the tank itself is sound, repair is usually the right call.

Signs you need this service

Hot water runs out faster than it used to
Water comes out rusty, cloudy, or with a metallic smell
Loud popping or rumbling noises from the tank
Visible water around the base of the heater
Pilot light won't stay lit
Unit is 10+ years old (typical tank lifespan in SoCal)

Our process

On-site assessment

We measure your gas line, vent path, and household demand to size the right unit.

Same-day quote

Choose between repair and replacement with a clear, flat-rate price and product options at every budget.

Code-compliant install

Earthquake strapping, expansion tank, T&P valve, sediment trap, and proper venting — all to current CA code.

Final test & walkthrough

We pressure-test, fire the unit, set the temperature, and walk you through the warranty and maintenance schedule.

Why choose SoCal Plumbing Co for water heater repair & installation

Hundreds of homeowners and property managers across Southern California trust us with their plumbing. Here's what sets our water heater repair & installation service apart.

Same-day install

Popular 40/50/75-gallon tanks and leading tankless brands in stock for next-day or same-day swaps.

Code-compliant every time

Earthquake strapping, expansion tank, T&P valve, sediment trap and proper venting on every install.

Tankless certified

Factory-trained on Rinnai, Navien, Noritz and Rheem tankless systems with manufacturer-backed warranties.

Rebate-friendly

We document every install for SoCalGas and utility rebates on qualifying high-efficiency tankless units.

Water Heater Repair & Installation cost & what affects pricing

A standard like-for-like 40 or 50-gallon gas tank replacement typically lands in the mid-to-upper four figures, all-in (unit, install, permit, haul-away). 75-gallon and power-vent units run higher.

Tankless conversions are a larger project because they often require a gas-line upsize and new venting — usually the high four figures to low five figures. We size your gas line and venting before quoting so the number you see is the number you pay.

Every quote is flat-rate, written, and approved before any work begins. Call (562) 366-0303 for a same-day estimate.

Water Heater Repair & Installation across Southern California

We're licensed to serve homes and businesses throughout the SoCal metro. Click your area for local intel and ZIP coverage.

Long Beach

Our home base — fast response across Long Beach and nearby neighborhoods.

Los Angeles

Licensed plumbing pros serving homes and businesses across LA County.

Orange County

Trusted plumber serving Anaheim, Irvine, Huntington Beach, Santa Ana, and beyond.

South Bay

Reliable plumbing services for Torrance, Carson, Lakewood, Cerritos, and Downey.

Frequently Asked Questions

What size water heater do I need?+

For most 2-bath homes a 50-gallon gas tank or a mid-range tankless (180–199k BTU) is the sweet spot. We size based on bedroom count, simultaneous-fixture demand, and gas line capacity — not a generic chart.

Should I repair or replace my water heater?+

If your tank is under 8 years old and the tank itself isn't leaking, repair is usually the most cost-effective option. Past 10 years — or with any tank leak — replacement is the safer choice.

Is a tankless water heater worth it?+

For most Southern California homes, yes. Tankless units last 20+ years (vs ~10 for a tank), deliver endless hot water, and qualify for rebates. The upfront cost is higher but pays back over the life of the unit.

How long does a water heater install take?+

A like-for-like tank swap is typically 2–4 hours. A tankless conversion takes 4–8 hours, depending on gas line and venting upgrades.

Do you handle the permit?+

Yes — we pull and pass all required City of Long Beach, LADBS, and OC permits for water heater installations.

Ready to fix it? Call (562) 366-0303

Same-day appointments available across Southern California.

(562) 366-0303 Request a Quote