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TRUSTED BY SIMI VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon104
    Verified water heater services reviews

Verified Reviews for Water Heater Service pros in Simi Valley, CA

*The Angi rating for Water Heater Service companies in Simi Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

*The HomeAdvisor rating for Water Heater Service companies in Simi Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

Last update on September 12, 2026

Find Water heater pros in Simi Valley

Avatar for THE Water Heater Company
THE Water Heater Company
4.9(
134
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Simi Valley, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"The Water Heater company saved the day by promptly replacing the incredibly old water heater with new Tankless solution. Their team is very professional, and the pricing was extremely competitive. I would use them again for all my water heaters needs."
Van (Side view)
TWHC Vans
TWHC Vans
TWHC Vans
TWHC Vans

+83

Response time7 hrs
Response rate92%
Recommended by84%of homeowners
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Avatar for Payless Water Heaters & Plumbing
Payless Water Heaters & Plumbing
4.2(
132
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"It went very well and all the issues were resolved quickly. Adan was very professional and confident service person. We highly recommended Payless water heater and plumbing."
New Tankless Water Heater Installation
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Response time8 hrs
Response rate100%
Recommended by73%of homeowners
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Avatar for The Water Heater Wizard LLC
The Water Heater Wizard LLC
5.0(
13
)
Water Heater - Repair or ServiceTankless Water Heater - InstallTankless Water Heater - Install - For Business+5 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2025

Credit card accepted

Offers commercial services

"The Water Heater Wizard is helping us with a long-standing plumbing problem. His work is outstanding. We heartily recommend the Water Heater Wizard."
Tankless Water Heaters
Heat Pump Water Heaters
Water Leak Detection
Water Filtration
Tankless Water Heaters

+6

1 neighbors recently requested a quote
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Avatar for Chajon Plumbing
Chajon Plumbing
4.9(
52
)
Tankless Water Heater - RepairWater Heater - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"I have had Chajon plumbing install 2 water heaters for me and in both instances he was very professional, knowledgeable, considerate and did a great job. I highly recommend this company"
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
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Avatar for Camarillo Rooter, LLC
Camarillo Rooter, LLC
5.0(
16
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessWater Heater - Install or Replace+1 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Lonnie is an awesome plumber! When I first got my house he installed new water valves for my washer. Just recently he came to repair my water heater because it was leaking. He noticed I still had warranty on my water heater. Any other plumber probably would have charged me for a new one. I really appreciate his honesty. I would definitely recommend his services"
Recommended by78%of homeowners
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Avatar for R R Electric Heating & Air
R R Electric Heating & Air
4.8(
17
)
Water Heater - Repair or ServiceWater Heater - Install or ReplaceTankless Water Heater - Repair+1 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 1994

Credit card accepted

Customers say: Quick response

R R Electric Heating & Air proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

Response time2 hrs
14 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for G M C Plumbing, Inc.
G M C Plumbing, Inc.
4.9(
86
)
Water Heater - Repair or ServiceTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Fast and great workmanship. Our water heater died and it was an emergency to get it fixed. Within 12 hours the problem was gone.."
New Drainage
Old shower Drainage
New kitchen faucet
New Drainage
New Drainage- SEWER LINE

+3

Response time5 hrs
Response rate97%
23 neighbors recently requested a quote
Request Quote
Avatar for So-Cal Plumbing & Rooter
So-Cal Plumbing & Rooter
4.7(
235
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+2 more

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1998

Free estimates

Emergency services offered

"Two workers showed up, with one training the other. They were efficient and willing to explain to me what they were doing ....which I appreciated. The new water heater was more expensive than my wife and I had expected, but, it turns out, the cost was well within the reasonable range of others we spoke to who had a water heater installed. The new water heater has safety features and there are CODE requirements that did not use to be the case.......all of which add to the expense. we were quite pleased over all with the equipment, the speed, the quality of the product we got, and the clean up and disposal of the old water heater."
One of our truckers
Our Jetter
Wotking hard for our clients
New Drainage Completed
New Clean-out Patch

+4

Response time4 hrs
Response rate95%
94 neighbors recently requested a quote
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Avatar for 805 PLUMBING
805 PLUMBING
5.0(
23
)
Tankless Water Heater - InstallWater Heater - Install or ReplaceWater Heater - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Awesome job! They were able to come the next day for my broken hot water heater. Very professional, they did an excellent job and were quick to get it done. Thank you, I will definitely use again."
Kitchen line reroute
Kitchen reroute
Kitchen reroute
Kitchen re route
Kitchen reroute

+22

Response time4 hrs
4 neighbors recently requested a quote
Recommended by85%of homeowners
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Jaxael S Rizo
5.0(
11
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessWater Heater - Install or Replace+2 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Great overall experience . Had a need for emergency water main regulator repair ended up needing a replacement . Called explained my situation , was overall very impressed with the professionalism and honesty of this business . Highly recommend if you want professional fair and honest price ."
Frizzlife Tankless Reverse Osmosis System
MOEN Flo Smart Water Monitor Automatic Shut Off
Frizzlife Tankless Reverse Osmosis System
Clients Old Shut Off Valve
Frizzlife Tankless Reverse Osmosis System

+16

Response time20 mins
Response rate100%
Recommended by90%of homeowners
Request Quote
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Showing 1-10 of 277
Water Heaters questions, answered by experts

When the water expands in a hot water heater, it puts pressure on your hot water pipes and can cause leaks or a rupture in the hot water tank under certain conditions. Pipes or water heaters may split due to the pressure where there is a backflow preventer that prevents the hot water heater from diffusing pressure by releasing water back to the public water line.

In these scenarios, a hot water heater expansion tank provides a place for the hot water heater to relieve pressure and prevent bursts and leaks.

The standard copper wire gauge to use with any 30-amp circuit is a 10-gauge wire. The National Electric Code specifies a 10-gauge wire with appliances like water heaters running on 30 amps. If you try to use a smaller gauge wire, such as a 12 gauge, with a 30-amp breaker, you run the risk of the wire overheating and melting or causing a fire. Because of the safety hazards, the gauge of the wire is not an area to try to cut costs when connecting a 30-amp breaker to a water heater.

Homeowners insurance may cover the repair or replacement of a water heater if it's damaged by a covered peril, such as a fire or a burst pipe. However, policies typically do not cover repairs or replacement needed due to normal wear and tear, old age, or lack of maintenance. For these issues, a home warranty or a manufacturer's warranty may provide coverage. While the policy might not pay to fix or replace the malfunctioning appliance itself, it often covers the cost of water damage restoration caused by the faulty water heater. Always check with your insurance provider to understand the specifics of your policy.

While not all homes require a hot water heater expansion tank, they are necessary in most newer homes and are often mandated by local building codes. Codes typically require an expansion tank if your plumbing system is a 'closed-loop' system, which often includes a backflow preventer or pressure regulator on the main water line. Some municipalities have specific requirements. Installing an expansion tank on a closed system is crucial, as it prevents excess pressure that can damage your water heater and other appliances, potentially shortening their lifespan. However, tankless water heaters do not require an expansion tank.

An average-sized empty water heater weighs around 150 pounds. Tankless water heaters are much lighter, weighing between 10 and 50 pounds. The smaller size and added convenience come at a price, though—tankless water heaters average about twice the price of their traditional counterparts.

The Simi Valley, CA homeowners’ guide to water heater services

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

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