1. Porch
  2. US
  3. MO
  4. St. Louis
  5. Tankless Water Heater Installation

Top 10 tankless water heater installation services in St. Louis, MO

Porch Pro Headshot NPM HEATING & COOLING LLC

NPM HEATING & COOLING LLC

Tankless Water Heater Installation
Serves St. Louis, Missouri
If you are looking for heating and air conditioning services in the St. Louis or St. Charles area, you've come to the right place! NPM Heating and Cooling, works all over St Louis County & St. Charles County. Providing services such as central air conditioning repairs, floor heater replacements, air...Read more about NPM HEATING & COOLING LLC
If you are looking for heating and air conditioning services in the St. Louis or St. Charles area, you've come to the right place! NPM Heating and Cooling, works all over St Louis County & St. Charles County. Providing services such as central air conditioning repairs, floor heater replacements, air...Read more about NPM HEATING & COOLING LLC
Porch Pro Headshot Craftsman Plumbing Company

Craftsman Plumbing Company

Tankless Water Heater Installation
Serves St. Louis, Missouri
(335)
Craftsman Plumbing Company is a full-service residential and commercial plumbing contractor, with expertise in all aspects of plumbing. We are licensed, bonded, and insured for your protection. Our team of professional plumbers proudly serves customers throughout the St. Charles County, Warren Count...Read more about Craftsman Plumbing Company
Craftsman Plumbing Company is a full-service residential and commercial plumbing contractor, with expertise in all aspects of plumbing. We are licensed, bonded, and insured for your protection. Our team of professional plumbers proudly serves customers throughout the St. Charles County, Warren Count...Read more about Craftsman Plumbing Company
Porch Pro Headshot Quality Heating & Cooling Inc

Quality Heating & Cooling Inc

Tankless Water Heater Installation
Serves St. Louis, Missouri
(90)
"Quality Heating and Cooling is a very clean and thorough company. Their service is great and they seem to pride theirselves on preventative maintenance. With their service plan they like to find problems with your furnace or air condition before its in the peak of the season. Saving a lot of time a...Read more about Quality Heating & Cooling Inc
"Quality Heating and Cooling is a very clean and thorough company. Their service is great and they seem to pride theirselves on preventative maintenance. With their service plan they like to find problems with your furnace or air condition before its in the peak of the season. Saving a lot of time a...Read more about Quality Heating & Cooling Inc
Porch Pro Headshot House Doctors

House Doctors

Tankless Water Heater Installation
Serves St. Louis, Missouri
(114)
House Doctors is a national franchise providing the professional alternative to home repair and improvement. Our technicians have at least 10 years of experience, are bonded, insured, show-up at firm, scheduled times, and can do pretty much everything -- plumbing, electric, carpentry, drywall, windo...Read more about House Doctors
House Doctors is a national franchise providing the professional alternative to home repair and improvement. Our technicians have at least 10 years of experience, are bonded, insured, show-up at firm, scheduled times, and can do pretty much everything -- plumbing, electric, carpentry, drywall, windo...Read more about House Doctors
Porch Pro Headshot Hampton Heating & Cooling

Hampton Heating & Cooling

Tankless Water Heater Installation
Serves St. Louis, Missouri
(27)
Hampton Heating and Cooling LLC is a family owned business that operates 24 hours a day. We repair and replace any items that pertain to heating, cooling and refrigeration. Repair and replace heating and cooling equipment, from furnaces, evaporators, condensers, washers, dryers and hot water heater...Read more about Hampton Heating & Cooling
Hampton Heating and Cooling LLC is a family owned business that operates 24 hours a day. We repair and replace any items that pertain to heating, cooling and refrigeration. Repair and replace heating and cooling equipment, from furnaces, evaporators, condensers, washers, dryers and hot water heater...Read more about Hampton Heating & Cooling
Porch Pro Headshot Alpha Sewer Drain & Plumbing

Alpha Sewer Drain & Plumbing

Tankless Water Heater Installation
Serves St. Louis, Missouri
(25)
We are committed to providing you fast, affordable and accurate plumbing services. We have over 18 years of plumbing, code correction, sewer repair and drain cleaning experience. Proudly serving St. Louis, St. Charles, O'Fallon, St, Peters, Chesterfield, Clayton and surrounding areas. We are your lo...Read more about Alpha Sewer Drain & Plumbing
We are committed to providing you fast, affordable and accurate plumbing services. We have over 18 years of plumbing, code correction, sewer repair and drain cleaning experience. Proudly serving St. Louis, St. Charles, O'Fallon, St, Peters, Chesterfield, Clayton and surrounding areas. We are your lo...Read more about Alpha Sewer Drain & Plumbing
Porch Pro Headshot Air-Pro Heating & Air Conditioning Inc

Air-Pro Heating & Air Conditioning Inc

Tankless Water Heater Installation
Serves St. Louis, Missouri
(24)
Air-Pro Heating & Air Conditioning established in 1993 24 Hour emergency service -Honor most all brands parts warranty -Service agreements -New construction installations (Large custom homes specialist) -Existing home equipment upgrades -Duct leakage testing -Geothermal installation -Heat Pumps Air ...Read more about Air-Pro Heating & Air Conditioning Inc
Air-Pro Heating & Air Conditioning established in 1993 24 Hour emergency service -Honor most all brands parts warranty -Service agreements -New construction installations (Large custom homes specialist) -Existing home equipment upgrades -Duct leakage testing -Geothermal installation -Heat Pumps Air ...Read more about Air-Pro Heating & Air Conditioning Inc
Porch Pro Headshot SMART St. Louis

SMART St. Louis

Tankless Water Heater Installation
Serves St. Louis, Missouri
(15)
SMART is a network of residential air conditioning & heating contractors that provide superior service to the St. Louis metro area. SMART Contractors provide maintenance, repair, replacement and design of residential HVAC units. Our focus is to help consumers reduce their overall heating and coolin...Read more about SMART St. Louis
SMART is a network of residential air conditioning & heating contractors that provide superior service to the St. Louis metro area. SMART Contractors provide maintenance, repair, replacement and design of residential HVAC units. Our focus is to help consumers reduce their overall heating and coolin...Read more about SMART St. Louis
Porch Pro Headshot High Ridge Heating & Cooling

High Ridge Heating & Cooling

Tankless Water Heater Installation
Serves St. Louis, Missouri
Is your AC or heating unit on its last leg? Do you need HVAC services before the seasons change? Rely on the experts at High Ridge Heating & Cooling for all of your heating and cooling needs. We offer complete HVAC service and installation for both residential and commercial properties. Our HVAC ser...Read more about High Ridge Heating & Cooling
Is your AC or heating unit on its last leg? Do you need HVAC services before the seasons change? Rely on the experts at High Ridge Heating & Cooling for all of your heating and cooling needs. We offer complete HVAC service and installation for both residential and commercial properties. Our HVAC ser...Read more about High Ridge Heating & Cooling
Porch Pro Headshot Usa plumbing plus

Usa plumbing plus

Tankless Water Heater Installation
Serves St. Louis, Missouri
(33)
Plumbing replair services
Plumbing replair services

Costs to Install a Tankless Hot Water Heater

$1588 - $1830
St. Louis, MO average
Get costs in your area
While $1588 - $1830 represents average costs for St. Louis, use the cost guide to determine prices near you.
Calculate for your area
Want a professional opinion?
Submit your project to local pros and get estimates based on your particular needs.
Get Pro Quotes

Top questions to ask before hiring a tankless water heater installer

A professional will assist you with scope and estimates, but having a clear idea of what you want to accomplish will help communication.

Do you want professionals to do everything, or do you have the time and skill to do some of the work?

Many projects such as have a DIY component, such as painting or cleanup.

First and foremost, protect yourself and make sure the contractor and any sub-contractors are licensed, bonded and insured.

Recent reviews for St. Louis tankless water heater installation services

28960

Very honest and reasonably priced

- Aaron Milligan
28961

My landlord called quality heating and cooling and they came to my house quickly and had the issue resolved in an hour, which was a huge relief because I have a small child and they had that AC up and running in no time flat

78637

We needed a replacement heating and cooling unit in our sunroom. As usual Quality was prompt in getting in the necessary equipment and installing it. Malcolm did a great job and took time to explain both the warranties and how the unit works.

- Bobbi Baumstark
28788

We had our semi-annual clean and check on our system and not only was the Technician extremely informative answering all of my questions, I felt at ease knowing our system still has a few more years left on it and we won't be needing to replace it this su...

- Valerie Jo
29654

Our air conditioning went outn and we called Quality and they came out the same day and determined the unit had to be replaced. Rich Sr. came the next morning and explained what we would need for our house. At same time we decided to include the furnace...

- Marge Place
28992

Used Quality Heating & Cooling to update our builder's grade heating and cooling system. The owner came to our house and listened why we wanted to replace the system we had and came up with 2 or 3 options for us. We never felt pressured to purchase one ...

- Carla Margenau
29930

Professional, reliable, and trustworthy. Nice folks.

All tankless water heater installation services in St. Louis, MO

Porch Pro Headshot C&G Heating & Cooling

C&G Heating & Cooling

Tankless Water Heater Installation
Serves St. Louis, Missouri
C&G Heating and Cooling company does both residential and commercial work. We are a Trane Comfort Specialist that specializes in installing high efficient furnace and air conditioners. Call (314) 645-0535 or (636)-394-2700 for all your service needs. We service all brands and we offer free est...Read more about C&G Heating & Cooling
C&G Heating and Cooling company does both residential and commercial work. We are a Trane Comfort Specialist that specializes in installing high efficient furnace and air conditioners. Call (314) 645-0535 or (636)-394-2700 for all your service needs. We service all brands and we offer free est...Read more about C&G Heating & Cooling
Porch Pro Headshot St Louis Water Heater Repair

St Louis Water Heater Repair

Tankless Water Heater Installation
Serves St. Louis, Missouri
St Louis Water Heater Repair is a full service plumber with our focus and expertise on hot water heaters. We fix, service, maintain, and replace water heaters of any make and model or setup like electric, gas, tankless, etc. We have the capability to work on all residential and commercial water he...Read more about St Louis Water Heater Repair
St Louis Water Heater Repair is a full service plumber with our focus and expertise on hot water heaters. We fix, service, maintain, and replace water heaters of any make and model or setup like electric, gas, tankless, etc. We have the capability to work on all residential and commercial water he...Read more about St Louis Water Heater Repair
Porch Pro Headshot Pierson Plumbing Sewer & Drain

Pierson Plumbing Sewer & Drain

Tankless Water Heater Installation
Serves St. Louis, Missouri
Porch Pro Headshot Trusedale J A Plumbing

Trusedale J A Plumbing

Tankless Water Heater Installation
Serves St. Louis, Missouri
Truesdale J A Plumbing offers plumbing and sewer & drain services to the Saint Louis area. Call us today!
Truesdale J A Plumbing offers plumbing and sewer & drain services to the Saint Louis area. Call us today!
Porch Pro Headshot Astro Heating & Cooling

Astro Heating & Cooling

Tankless Water Heater Installation
Serves St. Louis, Missouri
(32)
Contact
Porch Pro Headshot the best plumber

the best plumber

Tankless Water Heater Installation
Serves St. Louis, Missouri
Porch Pro Headshot Rooterman Plumbing

Rooterman Plumbing

Tankless Water Heater Installation
Serves St. Louis, Missouri
We are a fully licensed ,bonded,and insured plumbing,and home improvement company. We offer sewer and drain cleaning, septic services, water heater services, garbage disposals, faucet repair, sewer and water line replacement, gas installation and repairs,new construction ,kitchen and bathroom remode...Read more about Rooterman Plumbing
We are a fully licensed ,bonded,and insured plumbing,and home improvement company. We offer sewer and drain cleaning, septic services, water heater services, garbage disposals, faucet repair, sewer and water line replacement, gas installation and repairs,new construction ,kitchen and bathroom remode...Read more about Rooterman Plumbing
Porch Pro Headshot Koehne Plumbing & Heating LLC

Koehne Plumbing & Heating LLC

Tankless Water Heater Installation
Serves St. Louis, Missouri
Koehne Plumbing & Heating is one of the experienced plumbing companies in the Collinsville area. Since they started doing business, they have been committed to delivering outstanding re-piping, sewer cleaning, water heater services, and sewer repair.
Koehne Plumbing & Heating is one of the experienced plumbing companies in the Collinsville area. Since they started doing business, they have been committed to delivering outstanding re-piping, sewer cleaning, water heater services, and sewer repair.
Porch Pro Headshot Earley Plumbing Inc.

Earley Plumbing Inc.

Tankless Water Heater Installation
Serves St. Louis, Missouri
Steve Earley has been providing residents of St. Louis and the greater St. Louis area with exceptional plumbing service since 1970.
Steve Earley has been providing residents of St. Louis and the greater St. Louis area with exceptional plumbing service since 1970.
Porch Pro Headshot Mount's Plumbing LLC

Mount's Plumbing LLC

Tankless Water Heater Installation
Serves St. Louis, Missouri
Porch Pro Headshot Father and Son HVAC

Father and Son HVAC

Tankless Water Heater Installation
Serves St. Louis, Missouri
Porch Pro Headshot Charles Henricks Landscaping & Lawn Care

Charles Henricks Landscaping & Lawn Care

Tankless Water Heater Installation
Serves St. Louis, Missouri
Porch Pro Headshot New Systems Heating and Cooling

New Systems Heating and Cooling

Tankless Water Heater Installation
Serves St. Louis, Missouri