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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon74
    Verified water heater services reviews

Verified Reviews for Water Heater Service pros in Moraga, CA

*The Angi rating for Water Heater Service companies in Moraga, 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 Moraga, 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 March 14, 2026

Find Water heater pros in Moraga

Avatar for Water Heaters Masters
Water Heaters Masters
4.9(
110
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Moraga, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Water Heater Masters were top-notch! I called on a Saturday afternoon - they were available 9am Sunday morning to come and inspect and quote. They only had one guy working that day, but scheduled me for Monday morning between 8 and 9. At 8:15am I got a call with an ETA of 8:45, which was a really nice touch! Despite telling me it would take an entire day to install, they were done by 1pm. They also found some creative ways to do the install to avoid drilling through my stucco (for the exhaust vent and for the condensate run-off). Very professional and clean-looking install. These guys may not always be the cheapest around, and they recommended a top-of-the-line heater (which is what I really wanted anyway), but I'd much rather pay a little extra for that level of service and support. Thank you!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time9 hrs
Recommended by95%of homeowners
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Avatar for Water Heater Boys, LLC
Water Heater Boys, LLC
5.0(
21
)
Water Heater - Install or ReplaceTankless Water Heater - Install

Serving Moraga, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Warranties offered

"The Water Heater Boys are true professionals! They were able to help me the same day as advertised! I highly recommend them!"
Tankless Install
75gal Bradford White
Response time2 hrs
Response rate100%
1 neighbors recently requested a quote
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Avatar for Payless Water Heaters & Plumbing
Payless Water Heaters & Plumbing
4.2(
131
)
Tankless Water Heater - InstallSolar Water Heater System - InstallTankless Water Heater - Install - For Business+6 more

Serving Moraga, 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%
1 neighbors recently requested a quote
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Avatar for Cali Water Heater & HVAC
Cali Water Heater & HVAC
4.8(
29
)
Water Heater - Install or ReplaceTankless Water Heater - InstallWater Heater - Repair or Service - For Business+2 more

Serving Moraga, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"Dan and the team did a great job on our Rheem heat pump water heater installation. They were quick, thorough, clean and the new water heater works great! I?d definitely use Cali again!"
Response time6 hrs
Response rate94%
41 neighbors recently requested a quote
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Avatar for All Water Heaters & Plumbing LLC
All Water Heaters & Plumbing LLC
4.4(
202
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+5 more

Serving Moraga, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1997

Free estimates

Emergency services offered

"They came back for free after the job and re-lit the pilot of our water heater, which I appreciated, and I would use them again."
Noritz Tankless
Noritz Tankless
Noritz Tankless
Rinnai Tankless
Rinnai Tankless

+20

Response time7 hrs
Response rate87%
69 neighbors recently requested a quote
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Avatar for Beaver's Construction Company
Beaver's Construction Company
4.5(
170
)
Tankless Water Heater - InstallWater Heater - Install or Replace

Serving Moraga, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1976

Free estimates

Credit card accepted

"I needed a new water heater for our rental. Dan was able to give me the estimate over the phone. He was on time and professional."
Response time7 hrs
Response rate100%
Recommended by94%of homeowners
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Avatar for Just In Time Water Heaters
Just In Time Water Heaters
4.9(
9
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessWater Heater - Install or Replace+1 more

Serving Moraga, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Great service. The technician came early and replaced the water heater in a few hours. Was very professional and knowledgeable"
Water Heater Repair - Defective Damper Switch
Tankless Install
Expansion Tank
New water heater
New Installation

+9

Recommended by62%of homeowners
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Avatar for Tankless Plumbing Solutions
Tankless Plumbing Solutions
4.9(
34
)
Tankless Water Heater - Install

Serving Moraga, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Tony was informative, communicative, on-time and he did a great job replacing my water heater!"
Rinnai
Rinnai
Rinnai
Rinnai
Rinnai

+10

Response time4 hrs
Response rate97%
11 neighbors recently requested a quote
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Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
721
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Moraga, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"The cost to replace three natural gas wall heater was slightly less than Gree mini-splits heater cooler. The installers were courteous and professional. Delayed several days as the equipment haven’t arrived yet. Job cost as agreed, but took half day longer due to the complexity of installation. Results are excellent. The mini-split units works as specified. Will use Albert Nahman heating plumbing again in the future."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
47 neighbors recently requested a quote
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Avatar for BCMN
BCMN
4.6(
111
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Install - For Business+5 more

Serving Moraga, CA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"This company was professional and came out right away. I needed a new water heater and it was put in the next day. Very competitive pricing.They did an excellent job. I only have good things to say about them and would definitely hire them again."
Response time4 hrs
3 neighbors recently requested a quote
Recommended by75%of homeowners
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Showing 1-10 of 195
Water Heaters questions, answered by experts

No, you’ll need to drain the tank before changing a water heater element, as the water heater element sticks through the side of the tank and uses a gasket to prevent water from pouring out. However, you don’t always need to drain it completely. If you’re only replacing the upper heating element, you can drain the tank until the water line is below the element. If you’re replacing the lower element, you’ll need to drain the whole thing.

Tankless water heaters heat water as it passes through the unit instead of storing heated water in the tank. Their ability to produce hot water on an as-needed basis makes them more efficient. However, they are generally more expensive than traditional units. Is a tankless water heater worth it? Most homeowners will save money with a tankless unit in the long run by using less energy.

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.

Unless you have previous plumbing experience or extensive experience with water heaters, you should avoid replacing your electric water heater yourself. This process involves disconnecting wiring and parts from the old water heater and reinstalling them onto the new one, among other difficult tasks. This job is best left to the pros to make sure that everything is connected correctly to avoid serious leaks or malfunctions.

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.

The Moraga, 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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