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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

Find Water heater pros in Washington

Avatar for Mr. Rooter Plumbing of St. George
Mr. Rooter Plumbing of St. George
4.5(
164
)
Tankless Water Heater - RepairWater Heater - Install or ReplaceTankless Water Heater - Install+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

9 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

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

14 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%
7 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

47 neighbors recently requested a quote
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Water Heaters questions, 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.

Every city and state will have its own set of installation codes and laws. Some won’t require you to obtain a permit before replacing your water heater, though we recommend you do, regardless of the local codes. On the other hand, some cities and states might require secondary permits for plumbing and electrical work related to the installation. Check with a local water heater installation company and local building codes to confirm which permits are required and what the specific laws are.

Water heater installation code requirements are in place to keep your family and home safe. Water heaters that are installed wrong can simply not work. However, that's an, if you're lucky, type of situation. More commonly, incorrectly installed water heaters pose a real threat from carbon monoxide poisoning, gas leaks, water leaks, and even explosions. 

In most municipalities, a license is not mandatory for water heater installation or replacement. However, we strongly recommend hiring a licensed plumber or water heater installer to handle the work. Licensed installers are far less likely to make a mistake during the installation, which means paying for the experience decreases your risk of a leak and other issues. You can use our state licensing tool to find out if a contractor you’re considering in your area holds a plumber’s license.

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 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.