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TRUSTED BY WATERLOO, NY HOMEOWNERS

  • Average homeowner rating star icon3.9
    Average homeowner rating
  • Verified reviews icon10
    Verified water heater services reviews

Top-Rated Water heater pros in Waterloo - Updated Nov 2026

Avatar for Halter Plumbing & Water Works
Halter Plumbing & Water Works
4.9(
99
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Waterloo, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"John stopped by last week to give us an estimate to install an outdoor water faucet off of the existing house plumbing. We accepted his price and set a time for installation the following week (today, 7-30-2019). The work was done in a timely professional installation. John is very personable, knowledgeable, and polite. I will keep him in mind for all of our plumbing work. Patric & Cindy Amarando"
Response time6 hrs
Response rate87%
2 neighbors recently requested a quote
W. Gray Service-Repair-Installation, LLC
4.8(
72
)
Tankless Water Heater - RepairWater Heater - Repair or Service

Serving Waterloo, NY and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"He came to our house to review the problem. He has not replaced the furnace yet (our choice to wait a bit) but his response was immediate and he was professional at our home and with the provided quote."
Response time3 hrs
Response rate100%
Recommended by96%of homeowners
Avatar for Frank N Frank Mechanical Contracting
Frank N Frank Mechanical Contracting
5.0(
5
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair - For Business+3 more

Serving Waterloo, NY and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

Thank you for considering hiring us for your project! At Frank N Frank Mechanical Contracting we pride ourselves on quality work, integrity and competitive pricing. We believe in giving our absolute best, no matter how big or small your project. \n \nWe are experts in our trade, and we will keep you educated and informed throughout the completion of your project. We treat your property like it's our own, with the utmost respect, just like we would our own family! \n \nAs the owner, my aim is to earn a 5-star review on the completion of your project. So, please let me know if at any time we are not living up to earning your perfect 5-star review. \n \nWe look forward to earning your business, so please ask us for references!

2 neighbors recently requested a quote
Astar Heating & Air Conditioning Inc
4.8(
138
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Waterloo, NY and surrounding areas

In business since 1976

Free estimates

Emergency services offered

"After an extensive process of having different contractors evaluate my home & submit their estimates for the installation of a Bosch tankless boiler/water heater combination unit as well as new baseboard heating, I selected AStar Heating & Cooling. Their staff impressed me from start to finish. Initially, I met Aaron who provided a thorough explanation of how the work would be done, offered other options that I did not know of or considered at the time, and provided a fair estimate that was similar to most of the other contractors. Next, when the time came for the projects to be completed, the technicians, Robert & Trevor, were on point. They always arrived in a timely manner & started working right away. They worked efficiently & quickly to get the projects done in the time frame promised. However, they did not rush, they took pride in their work & made every effort to make sure the work was completed neatly & done properly, as they thoroughly tested out the systems to make sure their were no issues/problems in their setup & performance. They also thoroughly answered my questions about the installation of the new systems as they went about their work. At the end of each workday, they made sure to clean up the job site & were very mindful in not dirtying my new floors by wearing plastic booties whenever they had to walk over them. The Bosch tankless water heater/boiler combination unit has been working without a hitch. I barely notice the difference in the time lag of receiving hot water in comparison to the old 40 gallon tank water heater I previously used. Overall, I highly recommend AStar Heating & Cooling. High quality work done high quality professionals. All of them put my mind at ease on what was a very necessary home improvement project."
Red Carpet Treatment
Furnace
AC
Recommended by98%of homeowners
Avatar for Royal Plumbing & Heating Services
Royal Plumbing & Heating Services
4.7(
174
)
Water Heater - Install or ReplaceWater Heater - Install or Replace - For BusinessWater Heater - Repair or Service+1 more

Serving Waterloo, NY and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

"This company was extremely responsive to my initial request and got back to me within minutes. My water heater was replaced on time and with no problems whatsoever. They traveled A significant distance to get to my town And kept good communication with me"
Water Heater Install
Water Heater Install
Water Heater Replacement
Water Heater Replacement
Water Heater Install

+23

Response time8 hrs
Recommended by94%of homeowners
Avatar for Payne Plumbing, Heating and Air Conditioning, LLC
Payne Plumbing, Heating and Air Conditioning, LLC
4.7(
17
)
Water Heater - Install or ReplaceWater Heater - Repair or Service

Serving Waterloo, NY and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Chris is very organized and easy to work with. He was able to schedule our maintenance visit at our convenience. We appreciated his checking our water heater and he was able to repair a potential leak. We look forward to being a regular customer by signing up for his Priority Partner Plan."
New Steam Boiler
New Toilet
Response time9 hrs
Recommended by93%of homeowners
Areti Plumbing Heating and Cooling
4.4(
40
)
Water Heater - Install or ReplaceWater Heater - Install or Replace - For BusinessWater Heater - Repair or Service+1 more

Serving Waterloo, NY and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"We hired Areti to completely gut and remodel our master bathroom, as well as repair several other aspects of our home (replacing the foyer tile and swapping the closet flooring from carpet to hardwood, installing a new water pump system, resealing skylights, etc). When we initially researched Areti, we learned that it is a young business, but I would encouraged people not to worry about that because they know what they're doing and their work is good. Throughout the process they always emphasized they wanted to make everything exactly the way we wanted it so we would love it--and we do LOVE it! ALL of their employees were VERY friendly and approachable, so I was at ease having them in our home when we weren't there. They were also very prompt at getting back to us with any questions/concerns via phone, text, email, and app. They were always on time when we had an appointment face to face, and we especially appreciate how quickly they came out to fix our water pump when it failed (and this was not part of the original scope of work; but they tackled the extra work without a problem). The quality of their work seems good, however there were a few things that weren't done quite right the first time and that they had to re-do. They do warranty their work, so it didn't cost us more for those hiccups. And Josh and Isaac (who managed our project) seem very thorough in checking the work after its done. Josh also looked over our whole house, basement to roof, and made some suggestions for minor repairs we could do on our own to make our house more functional, safe, and beautiful. We would definitely hire them again for our future home projects. We are very, very pleased with all the work Areti did on our home."
Response time1 day
Recommended by100%of homeowners
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Water Heaters FAQs, answered by experts

One of the primary benefits of a heat pump water heater is how cost-effective it is. How much you save will depend on your water usage and electricity costs. That being said, we can ballpark savings for the average home of between $100 and $500 per year. You can increase that savings rate by researching and applying available energy incentives available in your area. If you really want to focus on cost, consider a tankless water heater.

Flushing biannually, checking the anode rod, and temperature settings maximize equipment lifespan while reducing surprise costs.

You have more options for water heaters than ever before. The best one for your home depends on your hot water usage and budget. Some of the more common types of water heaters are the conventional gas heater, a heat pump water heater, or a tankless heater for smaller homes or those with less water demands. Some uncommon types are solar and point-of-use systems. Some homes may have a combination of two units, such as a large heat pump heater and a backup point-of-use system.

The size needed for your expansion tank is determined by the size of your home's water heater. Expansion tanks are available in 2-gallon and 4.5-gallon sizes. A 2-gallon tank will be appropriate for water heaters up to 50 gallons. An adequately sized tank should have a volume that equals 2% to 5% of the water volume within the system. A plumber can evaluate your home's water pressure, water heater size, and other factors to provide suggestions for picking out the best expansion tank.

While a water heater explosion is rare, it is a serious danger. Be aware of these critical warning signs:

  • Sulfur or Rotten Egg Smell: This is a major red flag, especially for gas water heaters. It can indicate a gas leak, which could ignite and cause an explosion.

  • Leaking Pressure Valve: If the temperature and pressure (T&P) relief valve is leaking, it may not be able to properly regulate internal pressure, creating a risk of bursting.

  • Shaking or Rumbling: Loud rumbling or shaking from the tank can be a sign of extreme pressure buildup.

  • Excessive Heat: If the exterior of the water heater feels unusually hot to the touch, the unit may be overheating dangerously.

  • Rust-Colored Water: This can be a symptom of severe internal corrosion that compromises the tank's integrity.

If you notice any of these signs, especially a gas smell, you must act immediately. Shut off the gas supply to the water heater and call a professional plumber right away to prevent a potential disaster.

The Waterloo, NY homeowners’ guide to water heater services

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