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TRUSTED BY SAINT JOHN, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon73
    Verified water heater services reviews

Top-Rated Water heater pros in Saint John - Updated Nov 2026

Avatar for Dunn Heating Air Conditioning and Plumbing
Dunn Heating Air Conditioning and Plumbing
4.7(
274
)
Water Heater - Install or ReplaceWater Heater - Repair or Service

Serving Saint John, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I needed to replace my parents' 40 year old AC Condenser and coil, and replace it with something that worked with the new furnace my father got installed four years prior. They were able to do the work requested, and also offered to redo the furance installation as the previous company installed it right on the basement floor where any backup/water could possibly get into the system. They were very prompt and showed up on time/on schedule. They were very upfront about costs and pricing and there were no last-minute price changes or hidden fees, which I appreciate. Work was done well and they ensured that everything worked before leaving the job site. The gentlemen working were very professional and understanding. I highly recommend them for anyone looking to replace their HVAC or to correct work that was previously poorly done."
Additional Photos
Response time2 days
13 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Brighthouse Plumbing, LLC
Brighthouse Plumbing, LLC
4.9(
9
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+3 more

Serving Saint John, 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. Louis
Mr. Rooter Plumbing of St. Louis
4.2(
351
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+4 more

Serving Saint John, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"The technician was honest and said that the water heater is in good working condition not needing any repairs or replacement We were told the opposite by another company!!! They have indicated that it needs replacement!!"
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
102 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Zoom Drain St. Louis
Zoom Drain St. Louis
4.7(
80
)
Water Heater - Install or ReplaceWater Heater - Install or Replace - For Business

Serving Saint John, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Emergency services offered

Warranties offered

"Andrew and team were out very quickly and worked in a storm to get our sewer lines unclogged so we did not take on more water. We had another big rain storm the following week with no more water backing up into the basement!"
Zoom Drain Residential
Zoom Drain Jetting
Zoom Drain Video Camera Inspection
Zoom Drain PowerSnaking
Zoom Drain Shower PowerSnaking

+9

Response time11 hrs
Response rate92%
217 neighbors recently requested a quote
Master Remodel & Construction
4.7(
18
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Saint John, MO and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

"Everyone on this team is fantastic. We originally met with Jacob, who was incredibly detailed in the notes he took. He spent a good amount of time with us at our initial meeting to truly understand what we wanted to accomplish. For the second meeting, we met with Jacob and Brian to go over some more items in detail. This is our first home and we relied on their experience when we weren't sure which direction to head into with some areas. The entire team was patient and respectful throughout the entire process, provided updates throughout our remodel, and gave recommendations when we needed them. Everything turned out how we wanted it to and we couldn't be happier. We'll definitely be using them in the future for other projects."
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 - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Saint John, 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
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Showing 1-10 of 136
Water Heaters FAQs, answered by experts

A single shower consumes an average of over 17 gallons, while brushing your teeth with the water running uses up to four unnecessary gallons. Watering the lawn spreads hundreds of gallons of water across the yard each time. Limiting water usage in these areas can significantly cut down your water bill.

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

Installing a water heater without a permit can result in high fines—as much as hundreds of dollars per day, in some areas. It can also void your homeowners' insurance and cause problems when selling your home because it violates local building codes and safety regulations.

Excessive pressure (above 80 psi) puts too much stress on plumbing pipes, joints, and fixtures. This can lead to leaks and burst pipes. Plus, it shortens the lifespan of appliances, can waste water, and can raise your utility bills. High water pressure might feel like a gift, but it’s actually a silent threat to plumbing.

Choosing between an electric water heater vs. a gas water heater comes down to personal preference. Overall, electric heaters are more energy efficient than their gas competitors. They’re also quieter to operate, take up less room, and don’t come with a risk of gas leaks. 

The downside is that electric water heaters cost more to operate than gas. They might also struggle to heat water fast enough for households that use large amounts of hot water. Lastly, a power outage could cause your electric water heater to stop working, whereas gas water heaters may still function.

The Saint John, MO homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.