Get matched with top water heater pros in Dover, MN

Q: What happens if you install a water heater without a permit?

• <div><p>Installing a water heater without a permit can result in high fines&mdash;as much as hundreds of dollars per day, in some areas. It can also void your homeowners' insurance and cause problems when selling your home because it violates local building codes and safety regulations.</p></div>

Q: What size circuit breaker does a water heater need?

• <div><p>Most standard residential water heaters, which are typically around 40 gallons and use 240 volts and between 3,500 and 5,500 watts, require a 30-amp, two-pole circuit breaker. For smaller, point-of-use water heaters using 120 volts and between 1,500 and 3,000 watts, a 30-amp breaker is also often adequate. However, some models may have different needs; units that use more watts than average may require a 40-amp breaker, while smaller units might only need a 20-amp breaker. Newer, tankless, or more energy-efficient models can also require a higher amperage. Having the correct breaker size is crucial for safe and efficient operation, so it's best to consult a licensed electrician to determine the specific needs of your water heater.</p></div>

Q: Can a heat pump water heater work in colder climates?

• <div><p>Yes, a heat pump water heater can work in colder climates but it&rsquo;s much more effective where it&rsquo;s warm. The reason is that the heat pump needs ambient warmth in the air to compress. The less warmth, the more compression required, thus using more electricity and offsetting the energy-efficient benefits. </p></div>

Q: How long does a tankless water heater last?

• <div><p>A tankless water heater can last up to 20 years, which is nearly double the lifespan of a conventional tank heater. However, their longevity is highly dependent on several factors. With proper installation and regular maintenance, such as descaling to prevent mineral buildup from hard water, you can expect a lifespan of 15 to 20 years. Without proper care, a tankless unit may begin to fail in as little as 12 years. Other factors that affect its lifespan include household usage and the quality of the local water supply. While they have a higher upfront cost, their energy savings, smaller size, and longer life make them a worthwhile investment for many homeowners.</p></div>

Q: Do water heater installers need to be licensed?

• <div><p>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 <a href="https://www.angi.com/angi-license-check.htm">state licensing tool</a> to find out if a contractor you&rsquo;re considering in your area holds a plumber&rsquo;s license.</p></div>

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Verified Reviews for Water Heater Service pros in Dover, MN

*The Angi rating for Water Heater Service companies in Dover, MN 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 Dover, MN 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 January 02, 2025

Reviewed in January 2025
Caleb was recommended by a friend and I could not be happier that I took the advice! He fixed my water heater issue in a timely manner and is just a nice guy. Stop looking and call Felton Plumbing.
Felton Plumbing, LLC
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Reviewed in March 2020
We had a water leak in an upstairs bathroom that damaged a downstairs ceiling and the subfloor. He brought in his subs to replace the flooring, subfloor, toilet flange, sheetrock, ceiling, popcorn texture, and painting. Everything he did and all of his subcontractors were fantastic. Highly...
Clark Custom Construction, LLC
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Reviewed in February 2020
I got a new water softener 1 week ago. So far so good. Fast and Friendly service.
Eco-Water
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Reviewed in January 2020
THE WATER SHOULD BE HOTTER.
Bill Metzger Plumbing
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Reviewed in September 2014
"BUYER BEWARE!!! We bought a Samsung washer and dryer from Appliance Village because they had a good reputation in Rochester. Our Kenmore washer had finally died and I wanted a large washer so I could wash the bedspreads. When my husband and I first arrived, the salesman did not ask what we...
Appliance Village Co
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Reviewed in October 2013
He was able to arrive earlier than planned, which was wonderful. He did excellent work and went beyond my expectations. He turned my water back on and power-washed the roof, which needed it desperately. He cleaned up after himself and left the area looking better than before. He also remembered...
Squeegee Squad
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Reviewed in October 2012
Matt came out and talked with us checking both the water heater and furnace. He found a crack in the furnace and immediately said he would order the part to fix it. He also told us the furnace part was under warranty which we did not know. The furnace was not purchased from Tri-County yet...
TRI-COUNTY PLUMBING & HEATING
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Reviewed in August 2010
I work in a commercial setting. I used K and S for everything for heating, air conditioning, and even electrical work. They were good up until the point that I needed them to work on a water heater. They did everything from installing a new gas line to putting in a new gas valve, then a new...
K & S Heating and Air Conditioning
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Reviewed in June 2010
I called this company last November, received a quote to fix a leak from my skylights and to fix the water damage in my living room. We waited until spring to complete the job because snow was starting to fall. I attempted to call the company in the spring and they called me back to set up an...
AMEK Custom Builders
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Reviewed in March 2010
Their bid was $40 per window cheaper than their competition. He included $400 extra in the bid for "worst case scenario" on the one water damaged window. They scheduled their carpenter to come out and measure the window. Upon talking to the carpenter he mentioned how they were going to...
Bob's Construction Inc
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Find Water heater pros in Dover

K&A Plumbing, LLC

4.8(

)

Water Heater - Install or ReplaceTankless Water Heater - InstallWater Heater - Repair or Service+5 more

Serving Dover, MN and surrounding areas

Approved

In business since 2018

Free estimates

Offers commercial services

"Derrick and Eric, did a terrific job, they replaced our water heater the same day that I Called. Derrick even replace a water shut off control that had been bothering us They are a couple of guys that really do a great job for their customers. They are really service oriented. They are my first and only call for my plumbing needs. A +++"

21 neighbors recently requested a quote

Recommended by38%of homeowners

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Water Works Plumbing, LLC

4.7(

)

Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessWater Heater - Install or Replace+3 more

Serving Dover, MN and surrounding areas

In business since 2010

Free estimates

Emergency services offered

Water Works Plumbing, LLC provides local area clients with superior quality plumbing services. With years of experience in the industry, you can be sure your project will be handled promptly and professionally. Call Water Works Plumbing, LLC today to set an appointment for your local project! 24 hour emergency services provided!

Recommended by96%of homeowners

Water Heater - Install or ReplaceWater Heater - Repair or Service

Serving Dover, MN and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Caleb was recommended by a friend and I could not be happier that I took the advice! He fixed my water heater issue in a timely manner and is just a nice guy. Stop looking and call Felton Plumbing."

Response time1 day

Recommended by91%of homeowners

Water Heater - Install or ReplaceWater Heater - Install or Replace - For Business

Serving Dover, MN and surrounding areas

In business since 2018

Free estimates

Offers commercial services

"They responded right away, and we were able to get the installation of the water softener done in a very reasonable amount of time. Would highly recommend this company."

Response time3 hrs

Recommended by100%of homeowners

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American Home Shield – Home Warranty

3.5(

5,688

)

Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Dover, MN and surrounding areas

In business since 1971

Credit card accepted

"He was very nice to talk with and repaired our washing machine. He even helped sweep the water out."

Recommended by65%of homeowners

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Petteys Plumbing LLC

New to Angi

Tankless Water Heater - InstallWater Heater - Install or ReplaceWater Heater - Repair or Service

Serving Dover, MN and surrounding areas

In business since 2024

Free estimates

Offers commercial services

We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. \nBeing a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!\n

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B&F Plumbing & Sons

New to Angi

Tankless Water Heater - InstallWater Heater - Install or Replace

Serving Dover, MN and surrounding areas

In business since 2013

Free estimates

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.\n

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Household Water Softening

New to Angi

Water Heater - Install or Replace

Serving Dover, MN and surrounding areas

In business since 1994

Free estimates

Credit card accepted

20 years of experience.

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QualityFast

New to Angi

Water Heater - Install or ReplaceWater Heater - Repair or ServiceWater Heater - Repair or Service - For Business

Serving Dover, MN and surrounding areas

In business since 2022

Free estimates

Emergency services offered

QualityFast is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

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Water Heaters questions, answered by experts

Installing a water heater without a permit can result in high fines—as much as hundreds of dollars per day, in some areas. It can also void your homeowners' insurance and cause problems when selling your home because it violates local building codes and safety regulations.

Most standard residential water heaters, which are typically around 40 gallons and use 240 volts and between 3,500 and 5,500 watts, require a 30-amp, two-pole circuit breaker. For smaller, point-of-use water heaters using 120 volts and between 1,500 and 3,000 watts, a 30-amp breaker is also often adequate. However, some models may have different needs; units that use more watts than average may require a 40-amp breaker, while smaller units might only need a 20-amp breaker. Newer, tankless, or more energy-efficient models can also require a higher amperage. Having the correct breaker size is crucial for safe and efficient operation, so it's best to consult a licensed electrician to determine the specific needs of your water heater.

Yes, a heat pump water heater can work in colder climates but it’s much more effective where it’s warm. The reason is that the heat pump needs ambient warmth in the air to compress. The less warmth, the more compression required, thus using more electricity and offsetting the energy-efficient benefits.

A tankless water heater can last up to 20 years, which is nearly double the lifespan of a conventional tank heater. However, their longevity is highly dependent on several factors. With proper installation and regular maintenance, such as descaling to prevent mineral buildup from hard water, you can expect a lifespan of 15 to 20 years. Without proper care, a tankless unit may begin to fail in as little as 12 years. Other factors that affect its lifespan include household usage and the quality of the local water supply. While they have a higher upfront cost, their energy savings, smaller size, and longer life make them a worthwhile investment for many homeowners.

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.

The Dover, MN 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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How Much Does It Cost to Flush a Water Heater? [2026 Data]
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How Much Does a Tankless Water Heater Cost? [2026 Data]
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•
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Water Heater Frozen? How to Defrost a Water Heater
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The Pros and Cons of Hybrid Water Heaters
Hybrid water heaters will have you weighing high initial costs versus long-term savings. Is it the right option for you? Explore the pros and cons of hybrid water heaters.
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How Long Do Water Heaters Last?
The average lifespan of water heaters is 6 to 15 years for conventional models and up to 20 for tankless ones, but it can be less if they are not properly maintained.