San Francisco Best Plumbing Service

Water Heater

Expert Water Heater Repair, Replacement & Installation You Can Trust

Is your water heater making strange noises, taking too long to heat up, or leaking water? You’re not alone. Every year, hundreds of San Francisco homes and businesses experience water heater issues that disrupt daily life and risk property damage.

At AB Plumbing Service, we specialize in residential and commercial water heater repair, installation, and replacement services across the Bay Area. With over two decades of hands-on experience, we know how to solve any water heater problem—quickly, safely, and affordably.

A San Francisco plumber carefully adjusts a cable on a wall-mounted water heater in a tiled room.

Water Heater Repair

Experiencing inconsistent hot water or sudden spikes in energy usage? Our team diagnoses and fixes issues like:

  • Pilot light failures

  • Faulty thermostats

  • Sediment buildup

  • Ignition problems

  • Gas valve issues

  • Tripped circuit breakers (for electric units)

We arrive fully equipped to repair most issues on the spot—saving you time, money, and frustration.

Water Heater Installation & Replacement

If your current unit is over 10 years old, leaking, or not keeping up with your household’s demand, it may be time for a replacement. We provide expert guidance and full-service installation of top-rated water heater systems designed for performance, efficiency, and longevity.

We’ll help you choose the best-fit model, including:

  • Gas or electric tank water heaters

  • Tankless water heaters

  • Hybrid heat pump water heaters

  • Energy Star® rated options

Full-Service Water Heater Solutions

Our licensed and insured plumbing experts are trained to work on all types and brands of water heaters
including both traditional tank models and modern tankless systems.

Traditional (Tank) Water Heaters

store heated water and are a good fit for families or businesses with steady demand.

Tankless Water Heaters

heat water on-demand—saving space and energy by only heating water when you need it.

Signs You Need Water Heater Service

Don’t wait until it’s too late. If you notice any of the following signs, give us a call right away:

  • No hot water or water that turns cold quickly

  • Leaks or rust around the tank base

  • Strange noises (popping, banging, or hissing)

  • Water with a metallic smell or discoloration

  • Pilot light going out repeatedly

Early repairs can prevent flooding, mold growth, and expensive replacements.

Why Choose AB Plumbing Service?

Decades of Experience in San Francisco

With over 20 years of hands-on experience, AB Plumbing Service understands the unique plumbing challenges of San Francisco’s diverse architecture—from historic Victorian homes to cutting-edge commercial builds. Our local knowledge means faster diagnostics, smarter solutions, and lasting results.

Fully Licensed, Bonded & Insured Team

Your safety and protection are non-negotiable. Every member of our plumbing crew is fully licensed, bonded, and insured—ensuring your project is completed to the highest legal and safety standards. No shortcuts. No risks. Just professional, accountable service.

Upfront Pricing & Transparent Quotes

We believe in honesty from the first call to final cleanup. That’s why we provide detailed, no-surprise pricing before any work begins. You’ll always know what you’re paying for—no hidden fees, just real value.

Fast Turnaround & Emergency Availability

Plumbing issues don’t wait—and neither do we. Our team is known for same-day service and 24/7 emergency response. Whether it’s a leaking pipe or a burst main, we’re ready to fix it fast, minimizing damage and downtime.

Water Heater FAQs

How long does a water heater last?

Most tank water heaters last 8–12 years, while tankless units can last up to 20 years with proper maintenance.

Should I repair or replace my water heater?

If your unit is over 10 years old and needs frequent repairs or leaks, replacement may be more cost-effective.

How long does it take to install a water heater?

A standard installation usually takes 2–4 hours. Tankless systems may take longer due to additional venting or electrical work.

Can I install a water heater myself?

For safety, code compliance, and warranty protection, we strongly recommend professional installation. DIY mistakes can lead to gas leaks or electrical hazards.

Request a Free Estimate Today

Need reliable water heater service in San Francisco? Call AB Plumbing Service for expert solutions tailored to your home or business.