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Top-Rated Tankless water heater repair pros in Wentzville - Updated Nov 2026

Avatar for Brighthouse Plumbing, LLC
Brighthouse Plumbing, LLC
4.9(
9
)
Tankless Water Heater - Repair

Serving Wentzville, MO and surrounding areas

Approved

In business since 2000

Credit card accepted

Offers commercial services

You can expect our technicians to provide timely service, a clear explanation of the work to be performed, and upfront pricing. We focus on providing industry best customer service from start to finish. Our technicians are insured, licensed and bonded.

BrightHouse Plumbing
Water Fountain and Fill Station
Bathtub
Shower
Backflow

+1

Response time10 hrs
Recommended by100%of homeowners
Avatar for Mr. Rooter Plumbing of St. Charles
Mr. Rooter Plumbing of St. Charles
4.2(
340
)
Tankless Water Heater - Repair

Serving Wentzville, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Noah did a wonderful job explaining what was wrong with my water heater. I appreciated him reviewing all about the new water heater. A very pleasant experience."
Mr. Rooter of St. Louis
Mr. Rooter of St. Louis
Mr. Rooter of St. Louis
Mr. Rooter of St. Louis
Mr. Rooter of St. Louis

+7

Response time6 hrs
36 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Winnovation Plumbing and Drain
Winnovation Plumbing and Drain
5.0(
7
)
Tankless Water Heater - Repair

Serving Wentzville, MO and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"This is a good company to deal with. James, the owner, was out within one hour to diagnose our problem. The next morning the technicians, Brian and Josh were out to take care of our drain issues. Brian made a point of showing me the camera footage of the main drain. The did a great job on the main and two other drains. They also cleaned up very well when they were done. Brian also noticed an issue with our bathtub stopper and fixed it without an extra charge. The pricing was transparent. They have a nice email notice system and called when they were on the way. The three men I worked with were all very professional and easy to deal with. I would not hesitate to use them again. Phil Lykens"
Water heater install
Shower Valve replacement
Shower Valve replacement
Stack replacement!
Stack replacement!

+3

16 neighbors recently requested a quote
Jerry Kelly Heating, Air Conditioning, Plumbing & Electrical - P
New to Angi
Tankless Water Heater - Repair

Serving Wentzville, MO and surrounding areas

Approved

In business since 1977

Free estimates

Credit card accepted

Since 1977, Jerry Kelly Heating, Air Conditioning, Plumbing & Electrical has helped homeowners in St. Charles and St. Louis Counties keep their homes comfortable, safe, and running smoothly. From repairs and maintenance to new installations, our team is committed to quality workmanship, dependable service, and customer satisfaction.

Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's Plumbing, Heating/Cooling & Energy Experts
4.7(
516
)
Tankless Water Heater - Repair

Serving Wentzville, MO and surrounding areas

In business since 1979

Free estimates

Emergency services offered

"Fantastic job installing my new water heater. The employees at Anton’s are efficient, professional and really likable people. They arrived on time and got the job done effortlessly. I also loved how they treated my home like it was their own by making sure nothing was damaged or ruined. They cleaned up everything and it didn’t even look like they had been here. I give Anton’s an A+ for the installation of my water heater."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

Response time12 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Mayo Plumbing Co
Mayo Plumbing Co
4.8(
481
)
Tankless Water Heater - Repair

Serving Wentzville, MO and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"John has been our go-to guy for several years now. We live in an early 70s home, and as with all older homes there are repairs that are needed fairly often. From the first time he worked for us, identifying that a leak originated from a roof vent that had been knocked slightly askew in a storm and rain water had gradually seeped down the pipes and terminated above our kitchen cabinets, he has always been prompt, courteous, professional in every way, and just an all around nice guy to work with. And the pricing has always been fair. Since then he has installed a number of appliances and fixed sundry leaks for us. Can't recommend him or his company enough. Give them a try."
Additional Photos
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2
3

+3

Recommended by96%of homeowners
Avatar for Vitt Heating & Air Conditioning Co Inc
Vitt Heating & Air Conditioning Co Inc
4.7(
161
)
Tankless Water Heater - Repair

Serving Wentzville, MO and surrounding areas

In business since 1954

Free estimates

Emergency services offered

"It went well under the circumstances. I found out that day, that my water had been turned off without my knowledge by America Water, which made it impossible to hose down and clean the outdoors unit. They did their part so I was satisfied. It would have been outstanding if they were willing to come back out to complete the cleaning when water was turned back on, for a perhaps half the price ($49.99). They would only come back out for $89.99."
Military Discounts (retired & active)
Senior Citizen Discounts
Residential HVAC
Multifamily & Commercial Installation & Maintenance
Professionally Installed Ducts

+6

Response time3 days
Response rate100%
Recommended by91%of homeowners
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
4.8(
37
)
Tankless Water Heater - Repair

Serving Wentzville, MO and surrounding areas

In business since 1993

Free estimates

Small jobs welcome

"I had to shut off the water to my house so I needed fast service. Within about a two hour time frame they arrived, took care of my issue and I was able to turn my water back on!"
Gas Water Heater
Short Water Heater
Gas Water Heater
Electric Water Heater
Under Sink

+3

Response time7 hrs
Response rate97%
Recommended by97%of homeowners
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