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Top-Rated Water heater repair or service pros in Simi Valley - Updated Nov 2026

Avatar for THE Water Heater Company
THE Water Heater Company
4.9(
134
)
Water Heater - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"My current 10-year 7-month-old water heater from Bradford White developed some issues with the control panel. The cost of repairing the control panel versus a new water heater was a no-brainer. We opted for a new water heater and the service we received from Sam R, a technician for the Water Heater Company was outstanding. He is so meticulous in getting everything done correctly. He kept the work area clean and kept me well-informed on what needed to be done as he worked. I would highly recommend this company. I included the images of the old unit in the process of being removed and the finished project."
Van (Side view)
TWHC Vans
TWHC Vans
TWHC Vans
TWHC Vans

+83

Response time7 hrs
Response rate92%
Recommended by84%of homeowners
Avatar for Payless Water Heaters & Plumbing
Payless Water Heaters & Plumbing
4.2(
132
)
Water Heater - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Perfectly. They cleaned everything up, explained how the system worked and how often it needs attention, and hauled away the old hot water heater. They arrived on time, worked steadily, and finished before dinner time."
New Tankless Water Heater Installation
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Response time8 hrs
Response rate100%
Recommended by73%of homeowners
Avatar for Chajon Plumbing
Chajon Plumbing
4.9(
52
)
Water Heater - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Giovanni was very professional, arrived on time, and kept in contact by phone and message about arrivals, needed equipment, and expected work. He was careful to explain what needed to be done and why and approached work with a positive attitude. The job involved replacing some valves on an exterior faucet set on copper pipes. Afterward, he noticed that the house water pressure was high and found that the regulator was not working so I had him replace that. Overall this was a very positive experience and I would say he is one of the good guys. Give him a call if you need some plumbing work done."
Before and after
Before and after
Before and after
You always have to Check for leaks
Start at the foundation to build up something

+17

Response time20 mins
Response rate95%
1 neighbors recently requested a quote
Avatar for G M C Plumbing, Inc.
G M C Plumbing, Inc.
4.9(
86
)
Water Heater - Repair or Service

Serving Simi Valley, 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 R R Electric Heating & Air
R R Electric Heating & Air
4.8(
17
)
Water Heater - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 1994

Credit card accepted

Customers say: Quick response

"Good quality and done right on spot. Feel that it was done right and know it won’t leak or have electric issues in future. But paid much more than angis estimate."
Response time2 hrs
12 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Fix It Quick Plumbing Inc
Fix It Quick Plumbing Inc
5.0(
26
)
Water Heater - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Jonathan and Joaquin replaced our water heater and it went smoothly! They showed up on-time and finished in the amount of time they said it would take. Really appreciate their professionalism and efficiency!"
Drain&Rooter Service
Cleanout Install
Hydro-Jetting
Descale
Camera Inspection

+10

Response time5 hrs
Response rate100%
Recommended by4%of homeowners
Avatar for Stowell Plumbing LLC
Stowell Plumbing LLC
5.0(
11
)
Water Heater - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2024

Emergency services offered

Credit card accepted

Stowell Plumbing is a family-owned, veteran operated plumbing company in Thousand Oaks, CA, serving Westlake Village, Simi Valley, and nearby areas. We help homeowners and small businesses with emergency plumbing, drain cleaning, hydro jetting, and main line clogs, plus water heater repair, installation and replacement, and everyday fixture repairs like toilets, faucets, showers, and garbage disposals. Whether you need urgent help or a planned upgrade, you’ll get clear communication, respectful service, and clean workmanship from licensed plumbers who do the job right

Gallery
Gallery
Gallery
13 neighbors recently requested a quote
Avatar for ELITE ROOTER, INC. - Ventura
ELITE ROOTER, INC. - Ventura
4.7(
16
)
Water Heater - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved (Corporate)

In business since 2017

Free estimates

Credit card accepted

Are you searching for a reliable plumber ? Elite Rooter offers expert drain cleaning & a full range of residential plumbing services . As expereinced plumbers, we understand the frustration of plumbing problems & provide fast, dependable, and affordable solutions, available 24/7 for emergencies. Whether it's a stubborn clogged drain, a leaky pipe, or a need for water heater repair or installation, our licensed & insured technicians are ready to help. You'll always receive upfront pricing with no hidden fees, and we stand behind our work with a 100% satisfaction guarantee. For dependable plumbing repair & drain cleaning services, contact Elite Rooter today ? we're here to help!.

My Work
My Work
My Work
My Work
My Work

+6

Recommended by62%of homeowners
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FAQs for water heater repair or service projects in Simi Valley, 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 Simi Valley, 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.