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Top-Rated Water heater pros in Middletown - Updated Nov 2026

Lake County Plumbing
5.0(
3
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Middletown, CA and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"He is very friendly, efficient and professional. He has follow through on projects, persists in solving the issues. He has installed a water tank, pump, boiler and drip system for me. He is very versatile."
Response time8 hrs
Recommended by100%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Middletown, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

Founded in 2000, for over 20 years Mega Power has been one of the premier solar companies in all of California, including many cities like Los Angeles, Riverside, Santa Clara, Granite Bay, Van Nuys, San Francisco, San Jose, Pasadena, Sacramento. Complete customer satisfaction, personalized approach and attention to details are our company’s intrinsic core values. We are providing the highest quality service as we enable our customers to save money, increase their property value and help improve the environment. Our team of certified professionals takes genuine pride in giving smooth, practical, Eco-friendly and positive solutions to our residential, commercial and industrial customers’ needs. All equipment and services meet both National Electrical Code requirements and local building codes. Mega Power offers a range of options toward green and energy-efficient solutions to all electrical power needs. We have extensive experience in building a complete solar panel system of all sizes on the roof or on the ground. Mega Power installs them with interconnection to the utility provider so that you could successfully sell excess electricity.

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+32

Recommended by100%of homeowners
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Middletown, CA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Ezra at Landmark construction energy crew is a perfect company in my book! I honestly recommend Ezra and his team of plumbers, because he his honesty and integrity, qualities that are sadly hard to find these days! Ezra was extremely helpful and knowledgeable about the tankless water heater system that we installed, and he was kind enough to come over and take a look at our new unit after it was installed and to check with us that the monthly bills came down as well. In addition to that, Ezra installed our new tankless water heater with the remote control that connects outside the tankless water heater. Because the remote control was not waterproof and if it will be installed inside the water heater, it would short circuit if it got wet enough. Thank you Ezra for going above and beyond for a "customer" who didn't even get to use you! Much appreciated. I will definitely be using Landmark construction energy crew to service my new tankless water heater when it needs it!"
Cool Roof Install
Energy Upgrade
HVAC Air Duct
Home Energy Audit
Energy Upgrade Contractors

+6

Recommended by98%of homeowners
Honest Handyman
4.6(
89
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Middletown, CA and surrounding areas

Free estimates

Emergency services offered

"Very professional! Called on same day I made inquiry and was able to do the work the same day, even in 100 degree heat! Very fair price. I highly recommend Joshua if you need a handyman - he picked the right name for his business, as he is definitely an "Honest Handyman". Thanks again!
"
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Recommended by96%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Middletown, CA and surrounding areas

In business since 1971

Credit card accepted

"We pay yearly but we have this is included with our rental property. They are pretty good on most things. We had a hot water heater replaced and they did an excellent job on that. They are very quick on their response. They dont come out here. It is all done on the internet.  I just like the idea that one time service charge is so much better than trying to hiring someone to come in. It is more about convenience. It pays for itself."
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+2

Recommended by65%of homeowners
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Water Heaters FAQs, answered by experts

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 replacing an old unit, you might want to switch from a gas water heater to an electric water heater or vice versa. To do this, you will likely need to add infrastructure to the area. For example, you likely don’t have a gas line that served your old electric water heater. You’d have to call a plumber to put in a new gas line. If you’re replacing a gas unit with an electric one, the plumber will need to safely cap the old gas line. You will then need an electrician to add wiring for the new electric unit.

Going from a tank to a tankless water heater is one of the most effective ways to lower your utility bills. The switch also frees up more space and ensures a consistent hot water supply, as the water is heated on an as-needed basis. It costs between $5,400 and $7,400 to install a new tankless water heater. Most installation companies will also help dispose of your old water tank.

When installing a new furnace, it's a good time to consider other projects that can enhance your home's energy efficiency. A great first step is to get a home energy audit, which will identify areas for improvement. Common recommendations include sealing or replacing windows and adding insulation to the attic. These upgrades can help you save money on monthly utility costs. You might also consider installing a smart thermostat to make heating your home more convenient and efficient.

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 Middletown, CA homeowners’ guide to water heater services

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