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Verified Reviews for Water Heater Service pros in Harmony, MN

*The Angi rating for Water Heater Service companies in Harmony, 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 Harmony, 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 September 07, 2026

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Avatar for K&A Plumbing, LLC
K&A Plumbing, LLC
4.8(
13
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+5 more

Serving Harmony, 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 +++"
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21 neighbors recently requested a quote
Recommended by38%of homeowners
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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 Harmony, 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."
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+2

Recommended by65%of homeowners
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Avatar for Newgaard Plumbing & Heating
Newgaard Plumbing & Heating
5.0(
1
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Harmony, MN and surrounding areas

In business since 1998

Free estimates

Credit card accepted

If it involves plumbing and heating, Newgaard Plumbing & Heating will get the job done! Family owned and operated, Newgaard Plumbing & Heating has been helping families in Southern Minnesota, and the surrounding area, stay comfortable and happy. Call the best, not the rest. We offer same day service, so call today and let us know how we can make you smile!

Response time50 mins
Recommended by100%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 Harmony, 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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QualityFast
New to Angi
Water Heater - Install or ReplaceWater Heater - Repair or ServiceWater Heater - Repair or Service - For Business

Serving Harmony, 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

Your water heater's age can affect your homeowners' insurance policy. Many policies will ask how old the heater is when you first apply for a policy—and they may make you replace a model that's over 10 years old. 

Even if your policy permits you to have an older heater, it may significantly reduce the amount of protection available. If an older water heater suddenly leaks and causes damage to parts of your home, your policy may not cover it.

The standard copper wire gauge to use with any 30-amp circuit is a 10-gauge wire. The National Electric Code specifies a 10-gauge wire with appliances like water heaters running on 30 amps. If you try to use a smaller gauge wire, such as a 12 gauge, with a 30-amp breaker, you run the risk of the wire overheating and melting or causing a fire. Because of the safety hazards, the gauge of the wire is not an area to try to cut costs when connecting a 30-amp breaker to a water heater.

On average, a tankless water heater should last between 10 and 15 years. Its lifespan will be affected by how much it's used, the effect of weather where your home is on the unit—colder is harsher and will shorten lifespan—and if the heater is maintained appropriately and regularly. There are many signs your water heater needs to be replaced, so pay attention to anything that changes with your heater or hot water.

It is very difficult and dangerous to install your own water heater, so we strongly recommend against tackling this as a DIY project. Not only will you need to wire your water heater, but you’ll also need to connect plumbing to the intake and outlet. Sweating copper pipes and connecting wiring properly are skills most DIYers don’t have, and even if you do feel confident you can do it, working with water and electricity always leaves the potential for electrocution. Hiring a local water heater installer is well worth the investment.

Often, the first issue you might encounter is a lack or loss of power—this could be caused by a tripped switch or a failed heating element. If your hot water is not producing enough power and its size is not the issue, you might need to replace one of its heating elements. A leaking water heater could be caused by tank erosion.

The Harmony, 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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