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Top-Rated Water heater repair or service pros in San Marino - Updated Nov 2026

Avatar for G M C Plumbing, Inc.
G M C Plumbing, Inc.
4.9(
86
)
Water Heater - Repair or Service

Serving San Marino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"I had a water heater replaced & they had to clear out the overflow piping cuz it was not draining. Turns out the outlet was outside buried in a planter, but they found it and fixed it. Great work, thank u."
New Drainage
Old  shower Drainage
New kitchen faucet
New Drainage
New Drainage- SEWER LINE

+3

Response time5 hrs
Response rate97%
24 neighbors recently requested a quote
Avatar for HARMONY ELECTRIC PLUMBING & AIR INC
HARMONY ELECTRIC PLUMBING & AIR INC
4.8(
36
)
Water Heater - Repair or Service

Serving San Marino, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"They called us quickly and got a plumber out within a few days. Super thorough - tested all pipes and water sources to diagnose the problem. They were able to perform maintenance on most bathrooms the same day and improve the water temperature in our showers. Gave helpful, non-biased advice on potential further plumbing improvements. We will likely call this company again for any and all future plumbing needs."
826 neighbors recently requested a quote
Recommended by38%of homeowners
Avatar for Alpine Plumbing, Heating, and Air
Alpine Plumbing, Heating, and Air
4.7(
36
)
Water Heater - Repair or Service

Serving San Marino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"Mike was great! He was friendly and knowledgeable. He let me know all the options for replacing my water heater and did the work quickly and neatly. Will definitely be calling him again!"
Plumbing - Drain Cleaning Project
Sewer cleaned of roots and ready for lining
Prepping pipe for lining by removing massive roots
Mixing resin for liners, this resin gardens to create a solid pipe
Sewer robot in the pipe

+26

Response time9 hrs
10 neighbors recently requested a quote
Recommended by67%of homeowners
Avatar for Northstar PHAC, Inc.
Northstar PHAC, Inc.
4.5(
128
)
Water Heater - Repair or Service

Serving San Marino, CA and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"Installer Carlos was on time and worked nonstop with our water heater replacement. His work surpassed what had been expected. Truly a company committed to quality and sevice."
FURNACE AND COIL
new furnace
Our Beautiful Installs
Our Beautiful Installs
Our Beautiful Installs

+29

Response time3 hrs
Response rate94%
21 neighbors recently requested a quote
Avatar for CARLOS HERRERA
CARLOS HERRERA
4.5(
215
)
Water Heater - Repair or Service

Serving San Marino, CA and surrounding areas

Approved

In business since 2008

Free estimates

Offers commercial services

Owner operated. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Cost is determined by the job. No travel charges. No service charges. No extra charge for after hours services. Give us a call today.

Tub Installation
55 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Precise Plumbing Services
Precise Plumbing Services
4.3(
137
)
Water Heater - Repair or Service

Serving San Marino, CA and surrounding areas

Approved

In business since 1978

Free estimates

Credit card accepted

"I called David at night because I was having problem with my tankless water heater. He couldn t come but he helped me troubleshoot. Now I know what to do when I have an emergency! Thanks so much David!"
1 neighbors recently requested a quote
Recommended by93%of homeowners
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FAQs for water heater repair or service projects in San Marino, CA

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The San Marino, CA homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.