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

Avatar for Leaky's Plumbing, Heating and A/C - San Antonio
Leaky's Plumbing, Heating and A/C - San Antonio
4.9(
1,171
)
Tankless Water Heater - Install

Serving Seguin, TX and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Air Systems recently installed our new heating/AC system. The detailed quote was clear and complete. The installation was flawless and communication was excellent. The work area was left cleaner than when they started working. This was an exceptional experience."
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+25

Response time7 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for Goettl Air Conditioning & Plumbing
Goettl Air Conditioning & Plumbing
4.3(
1,078
)
Tankless Water Heater - Install

Serving Seguin, TX and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1939

Free estimates

Emergency services offered

"The installers set the water temperature of our new water heater way too low. When we called about not having enough hot water a supervisor came out the next day, determined that the problem was the thermastat, reset it and everything is now working satisfactorly."
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We do things the right way, not the easy way.
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+10

77 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for A&A Plumbing
A&A Plumbing
4.6(
49
)
Tankless Water Heater - Install

Serving Seguin, TX and surrounding areas

Approved

In business since 2007

Warranties offered

Customers say: Quick response

"Setting up an appointment, responsiveness and punctuality were excellent. 19 months ago I had a leak on my residential water main repaired. Unfortunately the main is leaking again. I couldn't recall offhand who had done the work last time but did a quick search on Angie's List and chose A& A. From the moment I called, the experience was excellent. Carrie (sp? sorry) took my call and had me set up and had two techs at my door in less than two hours. The techs, Kyle and Dale were extremely quick in coming up with a price estimate. I don't want to say it was off the charts but.. I had watched the previous tech repair the leak in less than an hour. I went through my records and located the receipt. With a 10% discount, I had paid $270. On this call, A&A quoted me $475 for the same work so unfortunately I did not okay the repair."
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+6

Response time1 day
Response rate100%
Recommended by86%of homeowners
Avatar for 5 Mile Plumbing Company LLC
5 Mile Plumbing Company LLC
5.0(
7
)
Tankless Water Heater - Install

Serving Seguin, TX and surrounding areas

Approved

In business since 2025

Warranties offered

Small jobs welcome

"On 10/27/2027, I had to find a plumber to repair my water heater that had stopped heating water. I went online to Angi?s website and received 3 different plumbing companies in the Austin, TX area. One of the companies was 5-Mile Plumbing Co. The owner of the company, Elvis Bernal, contacted me. We discussed the issue with the water heater. Mr. Bernal gave me his assessment and provided me with a bid proposal on the cost of the repair. Mr. Bernal came to our house the next day and immediately started work on the water heater. I watched Mr. Bernal from a distance and asked questions regarding the procedure. Mr. Bernal went out of his way to answer my questions. During his work, Mr. Bernal also saw something else that needed replacement on the water heater and immediately left the house to go purchase the part. Mr. Bernal replaced the part, continued the repair and verified one of the heating elements had gone out. A new heating element was installed and Mr. Bernal ?bled? the"
Will Fix It
4.1(
88
)
Tankless Water Heater - Install

Serving Seguin, TX and surrounding areas

Approved (Corporate)

In business since 1994

Free estimates

Emergency services offered

"The repairmen was very professional and experience in his craft, I was shocked at how fast they responded to my request. It is a known fact that electricians,plumbers, carpenters and etc. are very expensive, but three or four hundred dollars to replace just a water faucet is entirely to much. As stated previously, I hired them to replace my air conditioner and they did a masterful job."
Unclogging a drain.
45 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Reliant Plumbing
Reliant Plumbing
4.0(
32
)
Tankless Water Heater - Install

Serving Seguin, TX and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Jason did outstanding work today! Fixed multiple issues in downstairs bathrooms. Neither shower/tub combo mechanisms were working properly, so we installed new fixtures that we picked out--suggest that you pick them out if you don't want the very basic ones. We also wanted a handheld shower feature in one. The tub spout on one was difficult to remove and they had to use a saw, and did so without causing any damage! They added new drain fixtures as well. I love that they are full-service plumbing only and they do good work. They may not have the lowest prices, but quality installation does matter, and that's what we got! Our kitchen sink faucet had been leaking at the base, so they installed a new one we picked out without issue, and it looks great. Jason was very knowledgable, professional, and skilled."
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+13

3 neighbors recently requested a quote
Recommended by35%of homeowners
M-R Plumbing
5.0(
5
)
Tankless Water Heater - Install

Serving Seguin, TX and surrounding areas

Approved

In business since 1984

Free estimates

Credit card accepted

A Good Plumber is not only the name of my company, it is what I am. With nearly 15 years of experience, I provide the utmost in quality, professionalism and integrity to every customer. I tackle anything from the pesky drain clog to a full bathtub/shower install. It is my goal to make every customer happy on every project I complete. I look forward to hearing from you and solving your plumbing problems!

Response time1 hour
Response rate92%
1 neighbors recently requested a quote
Avatar for Team Enoch Plumbing San Antonio
Team Enoch Plumbing San Antonio
4.9(
133
)
Tankless Water Heater - Install

Serving Seguin, TX and surrounding areas

In business since 2013

Credit card accepted

Offers commercial services

"Team Enoch sent Jacob and Merick the next day to replace my old water heater with a 50 gallon Rheem water heater. They were very kind, respectful, and professional from the moment they arrived until exit. They communicated with me throughout to educate me on the process and future maintenance. I had a wonderful experience with Team Enoch from the initial call, financing this unexpected expense at an affordable cost, and the final install with excellent warranty coverages. Thank you all for making this a positive experience for me."
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+32

Recommended by99%of homeowners
Avatar for Prostar Water Inc
Prostar Water Inc
4.8(
262
)
Tankless Water Heater - Install

Serving Seguin, TX and surrounding areas

In business since 1996

Free estimates

Credit card accepted

"Justine from Prostar was very knowledgeable and professional. She gave us great price options and followed up after the installation to be sure we were happy. They were on time and did a great job! The technician thoroughly explained what they were doing and how long it would take. We had several quotes/options, but Prostar Water definitely provided the best product and service for the money!"
Recommended by97%of homeowners
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