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TRUSTED BY WASHINGTON, UT HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon24
    Verified water heater services reviews

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

Avatar for Mr. Rooter Plumbing of St. George
Mr. Rooter Plumbing of St. George
4.5(
164
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Washington, UT and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Water heater failed on a Sunday. Called Rooter just after lunch and they said they would be at my home by 4:30 to give me an estimate. Their technician got here at 4:00 and I had a new unit installed by 7:30 pm. Great work, great Technician!"
Thank You
Mr Rooter Plumbing
Our Angi Page
Camera Main line
Broken sewer line

+9

10 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Whipple Cooling, Heating, Plumbing & Electrical
Whipple Cooling, Heating, Plumbing & Electrical
3.9(
225
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+3 more

Serving Washington, UT and surrounding areas

Approved (Corporate)

In business since 1947

Free estimates

Emergency services offered

Since 1947, Whipple Service Champions have kept water moving the right direction in Southern Utah homes. Drain cleaning, leak detection, water heater repair and replacement, repiping, fixture installation, and water treatment across Washington County — where hard water is the rule, not the exception.\n\nEvery job is handled by licensed, insured Service Champions committed to 200 hours of annual training. We show up on time, explain what's wrong in plain language, and give you the price before the work starts — no surprises, no pressure. Because when it comes to your comfort, second place isn't an option.\n\nWhipple is on the way. Let's get your home to gold.\n\nWhipple also handles HVAC and electrical for St. George homeowners.

Our Work
Our Work
Our Work
Our Work
Our Team

+6

22 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Patriot Plumbing and Mechanical, LLC
Patriot Plumbing and Mechanical, LLC
5.0(
21
)
Tankless Water Heater - InstallWater Heater - Install or Replace

Serving Washington, UT and surrounding areas

Approved (Corporate)

In business since 2017

Free estimates

Credit card accepted

"This group was hired by repipe to repipe my house and they did an outstanding job! I am a very picky person but I was very satisfied with their work not to mention the extras that were put in to bring my house up to code as a courtesy! I rate them as five stars and would recommend them to anyone that needs work done. They were courteous and very respectful towards my premises."
Plumbing Repipe
Plumbing Repipe
Plumbing Repipe
Response time1 day
Response rate89%
39 neighbors recently requested a quote
Avatar for Walker Plumbing, Heating Air
Walker Plumbing, Heating Air
5.0(
5
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+1 more

Serving Washington, UT and surrounding areas

Approved (Corporate)

In business since 2002

Credit card accepted

Founded in 2002 by Master Plumber Brett Walker, Walker Plumbing, Heating & Air is a family-owned and operated company that has been proudly serving St. George and Southern Utah for over 20 years. Brett and his fully licensed team of master plumbers and HVAC technicians are dedicated to delivering top quality workmanship and a great customer experience, with a full fleet of trucks and technicians available 24/7 for any plumbing or indoor comfort issue. From the moment you call, you can expect clear communication, prompt arrival, fast turnarounds, and personalized solutions tailored to your needs and budget. Every technician is licensed, insured, and background checked, and our no-upselling policy means you'll always receive honest, transparent service without pressure. Walker Plumbing, Heating & Air is the go-to home services company for your friends and neighbors in Southern Utah, and we'd love to show you why. \n

33 neighbors recently requested a quote
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Water Heaters FAQs, answered by experts

You can and should vent the gas from your hot water heater to the outside of your home. Traditionally, these gases were vented back to other gas appliances, like stoves or furnaces, but many jurisdictions have outlawed this practice due to the risks it provides. 

Most water heaters today use atmospheric venting that exhausts the gas out of the home through a pipe.

You have more options for water heaters than ever before. The best one for your home depends on your hot water usage and budget. Some of the more common types of water heaters are the conventional gas heater, a heat pump water heater, or a tankless heater for smaller homes or those with less water demands. Some uncommon types are solar and point-of-use systems. Some homes may have a combination of two units, such as a large heat pump heater and a backup point-of-use system.

A single shower consumes an average of over 17 gallons, while brushing your teeth with the water running uses up to four unnecessary gallons. Watering the lawn spreads hundreds of gallons of water across the yard each time. Limiting water usage in these areas can significantly cut down your water bill.

No. Expansion tanks must be installed on the supply side (where heated water flows out) of the boiler. There’s also a list of other requirements for most boilers, including being above the pressure relief valves, being on the inner side of any circulator, and more. Your installation manual should have more information on expansion tank installation requirements and what sort of tank the system is made for.

There are pros and cons to tankless water heaters. They are more efficient than traditional tank water heaters, and maintenance costs are lower. These units are also much more compact. On the other hand, they cost about twice as much to install as traditional tank water heaters and are more limited in terms of flow rate.

The Washington, UT homeowners’ guide to water heater services

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