Water Heater Repair

Water Heater Repair in San Francisco, CA

Trusted & Timely Water Heater Repair Services in San Francisco

When your water heater stops working, you need a team that understands San Francisco’s unique plumbing landscape inside and out. At Nigel Mulgrew Plumbing, we’ve been helping Bay Area homeowners and businesses restore their hot water since 1998. Our skilled plumbers bring decades of expertise, fast response times, and meticulous workmanship to every service call.

San Francisco’s neighborhoods come with a wide range of plumbing challenges. Aging infrastructure in historical districts often requires careful handling, while new developments must follow the city’s strict energy and water conservation standards. Our familiarity with seismic safety requirements, conservation ordinances, and local plumbing codes allows us to deliver solutions that restore your hot water while also keeping your system compliant with city regulations.

Need water heater repair in San Francisco? Call Nigel Mulgrew Plumbing at (415) 857-9980 or send us a message online today!

Why Choose Nigel Mulgrew Plumbing for Water Heater Repair in San Francisco?

Choosing the right plumber in San Francisco means more than finding someone who can fix a leak. You want a team that knows how to work within the city’s unique housing stock and regulatory environment. That’s what sets Nigel Mulgrew Plumbing apart.

With over 25 years of proven service, our family-owned company combines the resources of a large team with the personal attention of a local business. Our 20 licensed, bonded, and insured plumbers have worked on everything from small apartments in the Mission District to high-value properties in Nob Hill. We handle tank, tankless, hybrid, gas, and electric water heaters with equal expertise, tailoring our approach to fit your property and your system.

What our clients value most is our reliability and communication. We provide same-day service for urgent repairs, keep you informed every step of the way, and always explain your options clearly before work begins. From routine fixes to complex system upgrades, we bring a client-focused mindset that makes the repair process straightforward and stress-free.

Water Heater Repair Solutions for San Francisco Homes and Businesses

Water heaters do more than provide hot showers—they’re essential for daily comfort and smooth business operations. That’s why our repair process is designed to restore function quickly while meeting San Francisco’s safety and environmental standards.

Our technicians are experienced in diagnosing and fixing a full range of issues, including:

  • Inconsistent or fluctuating water temperatures
  • Pilot light or ignition problems
  • Sediment buildup causing reduced efficiency
  • Leaks around tanks or connections
  • Thermostat or control failures

We also understand the demands of multi-unit housing and commercial properties. Apartment buildings, restaurants, and offices across San Francisco depend on reliable hot water, and we regularly work with property managers and business owners to complete repairs that minimize downtime. For homeowners, we provide guidance on upgrades that improve efficiency and safety, including earthquake bracing, expansion tanks, and code-compliant shutoff valves.

Whether your water heater is a conventional tank model or a high-efficiency tankless unit, we adapt our work to the needs of your property and the city’s requirements.

See Us in Action Recent Projects

  • Belvedere Multi-Unit
  • Castro Kitchen Remodel
  • Rincon High-Rise Remodel
  • Master Bath Remodel
  • Atherton Project
  • Washington St. Remodel

Our Repair Process

At Nigel Mulgrew Plumbing, our water heater repair process goes beyond patching the problem. We combine technical precision with local expertise to make sure your system is safe, efficient, and durable.

  • Inspection & Assessment – We perform a thorough evaluation of your system, plumbing connections, and venting. We also check compliance with San Francisco building codes and SFPUC conservation standards.
  • Transparent Diagnosis – You’ll receive a clear explanation of the problem and your options, with an upfront cost estimate.
  • Professional Repairs – We replace faulty components with high-quality parts, and we’re trained to service premium and European-brand water heaters often found in custom homes.
  • Testing & Safety Checks – We test for efficiency, verify seismic bracing, and confirm all safety measures are in place.
  • Client Guidance – Before leaving, we explain how to maintain your water heater and what signs to watch for, so you can prevent future breakdowns.

This careful, step-by-step process reflects our commitment to protecting your investment while keeping your system compliant with San Francisco’s evolving codes.

Five-Star Customer Reviews
"Wonderful plumbing company!"

Nigel Mulgrew Plumbing is a wonderful company whose service and customer service are some of the best I've experienced. They ...

- Robert B.

FAQs About Water Heater Repair in San Francisco, CA

How quickly can you respond to an emergency?
We provide same-day service for urgent water heater repairs. If you’ve lost hot water or notice a leak, our team prioritizes fast, reliable solutions to restore comfort.

Do you repair all water heater types?
Yes. We service gas, electric, tankless, hybrid, and traditional tank water heaters, as well as high-efficiency and specialty models.

Are permits required for repairs in San Francisco?
Most repairs don’t require permits, but replacements and certain upgrades do. We handle all permitting to keep your project compliant with city regulations.

What signs suggest my water heater needs repair?
Watch for inconsistent hot water, leaks, discolored water, loud banging or popping noises, or rising energy bills. These are often early warning signs of bigger issues.

Do you work on older buildings in San Francisco?
Yes. We regularly repair systems in historic homes and multi-unit properties, where space limitations and aging infrastructure require careful planning and specialized expertise.

Can you help with water heaters in commercial kitchens or businesses?
Absolutely. We repair water heaters in restaurants, offices, retail spaces, and other commercial properties throughout San Francisco.

Do you use genuine manufacturer parts?
Whenever possible, we use OEM parts or high-quality equivalents that meet or exceed manufacturer standards.

What should I do if my water heater is leaking?
Shut off the water supply and call us immediately. Even small leaks can cause water damage, especially in multi-story San Francisco buildings.

How long does a typical repair take?
Most repairs can be completed the same day, though complex issues may require additional time for specialized parts.

Should I repair or replace my water heater?
If your unit is over 10–12 years old, frequently breaks down, or struggles to provide enough hot water, replacement may be more cost-effective. We’ll provide honest guidance based on your system’s condition.

Need water heater repair in San Francisco? Call Nigel Mulgrew Plumbing at (415) 857-9980 or send us a message online today!

Ready to Go Green? Contact Nigel Mulgrew Plumbing

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