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Top-Rated Tankless water heater installers in Mankato - Updated Nov 2026

Avatar for Resolute Plumbing Solutions LLC
Resolute Plumbing Solutions LLC
5.0(
8
)
Tankless Water Heater - Install

Serving Mankato, MN and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Needed a leaking water heater replaced. Todd was great at providing a quote for the job, and working me into his schedule for the next day. Punctual and efficient...and within an hour or so I had a new water heater with hot water! Would highly recommend for a job well done."
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+3

3 neighbors recently requested a quote
Avatar for Connors Plumbing & Heating Inc
Connors Plumbing & Heating Inc
4.5(
34
)
Tankless Water Heater - Install

Serving Mankato, MN and surrounding areas

Approved

In business since 1949

Emergency services offered

Credit card accepted

"Contacted Conners Plumbing & Heating to come out and inspect our 12 year old leaking hot water heater to determine whether a replacement was needed. Dave was quickly able to determine that a replacement was necessary. Pricing was discussed, we obtained additional quotes, and ultimately decided to have Conners Plumbing & Heating complete the actual installation. Pros: Very professional and knowledgeable, respectful of your home (used shoe covers, covered carpeting when removing old heater and bringing the new one in), and easy to work with. Local company (Waseca, MN) with local staff (our installer, Dave, was from Owatonna). Cons: Priced higher than all other quotes that we obtained, and that was even AFTER receiving a 15% discount on the total cost. (We received a 15% discount due to the fact that we signed up for the "Service Partner" program). Also, the office staff indicated that our installer would be at our home at 8:00 a.m. on the day of the install but the actual arrival time was later than that because the installer had to obtain the permit and pick up the hot water heater prior coming to our home that morning. To summarize: Even though the cost was greater than all of the other quotes that we obtained, we still opted to utilize Conners Plumbing & Heating because they were knowledgeable, professional, and accommodating."
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for J & M Plumbing, LLC
J & M Plumbing, LLC
4.7(
72
)
Tankless Water Heater - Install

Serving Mankato, MN and surrounding areas

In business since 2012

Free estimates

Small jobs welcome

"My husband was extremely impressed by the quality of the service. We will definitely hire them again for any future plumbing or gas repairs. Very flexible schedule and confirmation of our order. Removed the leaky water heater and installed the new one we ordered at half the time and cost that the chain store quoted us. ð"
Kitchen faucet install
Outside gas fire pit
Response time10 hrs
Response rate87%
Recommended by98%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Tankless Water Heater - Install

Serving Mankato, MN and surrounding areas

In business since 1971

Credit card accepted

"Well, the first time the replacement was ordered it was the wrong one, which of course, delayed the installation a week. When it was finally installed I had to pay an additional $850 for code upgrades. This I was not informed of by Home Shield. Then we noticed that there was water on the garage floor and found that the pipe coming in from the wall was leaking at the wall so had to call the plumbing company back out to fix it. They first tried to say it was not their fault but since there wasn't a leak before they installed they did fix it. I have used Home Shield a few times before and never had a problem. Some of the companies they use are not the best so you have to research them before you commit. I have found HS service to be good if you do your homework. At the end of the day I was without hot water for almost 3 weeks but it was do to the plumbing company they sent out."
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+2

Recommended by65%of homeowners
Wassman Plumbing
5.0(
1
)
Tankless Water Heater - Install

Serving Mankato, MN and surrounding areas

In business since 2002

Free estimates

Credit card accepted

We're dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. We specialize in mechanical piping and a variety of residential and commercial services. We take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

Response time9 hrs
Recommended by100%of homeowners
JSV Plumbing
New to Angi
Tankless Water Heater - Install

Serving Mankato, MN and surrounding areas

In business since 2023

Free estimates

Offers commercial services

10 plus We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n

Response time3 days

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