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Top-Rated Tankless water heater installers in High Ridge - Updated Nov 2026

Avatar for Liberty Heating & Cooling
Liberty Heating & Cooling
4.8(
46
)
Tankless Water Heater - Install

Serving High Ridge, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"Sam Marsala was very good at diagnosing my furnace trouble, the fix was simple to my relief. My water heater was on its last legs. Sam diagnosed the trouble and we had Sam install a new Raheem water heater. He was very quick to respond to my needs and explained very clearly the trouble found. Installation was really done neatly and he left the work area very clean. I am more then satisfied with the work, product and technician. Well done."
A/C replacement
Additional Photos
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+10

6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Mr. Rooter Plumbing of St. Louis
Mr. Rooter Plumbing of St. Louis
4.2(
351
)
Tankless Water Heater - Install

Serving High Ridge, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"They called me first thing in the morning and John was there before 10. Then they worked it out that they were able to install my new water heater that day, within a few hours. They were courteousness and very professional. I was very impressed with the entire experience."
Mr Rooter Neighborly Hub for Home Services
Courteous, Uniformed Professionals.
Keep your home clean with mats and shoe covers.
Provide a price before we start.
Revolutionary Drain Cleaning Services

+7

Response time1 day
100 neighbors recently requested a quote
Recommended by86%of homeowners
Master Remodel & Construction
4.7(
18
)
Tankless Water Heater - Install

Serving High Ridge, MO and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

"Jacob and Cody have been amazing to work with. We originally hired them to repair our stairs and have since contracted with them to install our kitchen tile floor, install electric in our kitchen island and to repair some of our drywall. Their team is very professional, their estimates are accurate and they do quality work. We plan to hire them again when we remodel our bathrooms."
Car port
Car port
Car port
Bathroom remodel
Bathroom remodel

+11

Response time2 hrs
Recommended by100%of homeowners
Avatar for Winnovation Plumbing and Drain
Winnovation Plumbing and Drain
5.0(
7
)
Tankless Water Heater - Install

Serving High Ridge, MO and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Winnovations Plumbing is a local, family-owned plumbing company proudly rooted in St. Louis. For more than a decade, we’ve been the neighborhood plumbers you can trust, built on a family legacy of quality craftsmanship and dedicated service.\n‍\nOur history began with a simple mission: to carry on a tradition of reliable plumbing work inspired by our founder’s father, an experienced plumber. Today, we remain committed to helping our community with honest solutions for every job, whether a small repair or a larger project. \n‍\nWe are more than just a plumbing service we’re part of the fabric of St. Louis. We support local families, focus on clear communication, and treat every home with respect and care. Plumbing issues can be stressful, so we emphasize transparency, timely service, and building long-term relationships with our customers.

Water heater install
Shower Valve replacement
Shower Valve replacement
Stack replacement!
Stack replacement!

+3

16 neighbors recently requested a quote
Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's Plumbing, Heating/Cooling & Energy Experts
4.7(
516
)
Tankless Water Heater - Install

Serving High Ridge, MO and surrounding areas

In business since 1979

Free estimates

Emergency services offered

"Great! Mike was prompt, friendly, courteous. He was very thorough and pointed out some things including how old and decrepit and DANGEROUS my water heater was. That was something that has been in the back of my mind for a while. I knew it was way past it’s reasonable life, and I’m glad it’s made it this far, but I didn’t realize how dangerous it had become, so I’m thankful that he checked it and let me know. And he got an appointment for a replacement sooner than I’d have been able to get it if I had just called in. Very happy with the service."
Additional Photos
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+18

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

Serving High Ridge, MO and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Great! I called Mayo as a new customer (my former plumber had retired). John called me after office hours from his cell phone before he had even returned to his office and had a chance to review my request; we discussed my situation and he said he would work me into his schedule. They kept in touch and updated expected arrival time. When John arrived, he was very personable, professional and efficient; he even leak-checked fittings for furnace and water heater, in addition to the new fitting he installed for the dryer. I like small family-owned businesses and would hire them again in a minute!"
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+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 - Install

Serving High Ridge, 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
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