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

Avatar for JONES AIR & WATER
JONES AIR & WATER
5.0(
8
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Waterloo, IL and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"We had Jones Air & Water come out to install filtration and replace a catalytic core system that we had installed to prevent descaling. In our situation, we had a high volume of Chlorine in the water that you could definitely smell and taste. The catalytic core system, didn't live up to the expectations and we still had to deal with a heavy scale build up noticeable on all of our faucets and with two Rinnai units for on demand hot water that raised concerns about what type of build up we were having on what we couldn't see. Everett came out and was very thorough in testing the water and then explaining a recommended solution. We finally decided on a dual media tank solution that Everett and JD installed that provides us with an efficient way to not only handle the Chlorine issue, but truly conditions the water and we're noticing all of the differences that Everett explained we should see. We are very satisfied with the whole process from the review of what our situation is, the recommended solution, the installation and the end result. We highly recommend using Everett for a water treatment solution."
Recommended by100%of homeowners
Avatar for Froggy's Heating & Air LLC
Froggy's Heating & Air LLC
4.2(
143
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Waterloo, IL and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"When my house was built 25 years ago the wrong gas line, type M was installed.  Earlier this year me and other neighbors were informed by letter from our county that when we had a new gas water heater installed we would also have to update the gas line to code.   Jeremiah had to replace the copper line with 'iron' lines, he did a great job!!  He is very knowledgeable, friendly and helpful
with questions I ask him.  When I need a new air conditioning and heating unit Froggy's Heating & Air will be the first company I will contact."
Working hard for you.
We do plumbing too
Look for our truck
Recommended by84%of homeowners
Avatar for Spengler Plumbing, Heating and Cooling
Spengler Plumbing, Heating and Cooling
3.8(
75
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Waterloo, IL and surrounding areas

In business since 1971

Emergency services offered

Credit card accepted

"Our water heater went out the other night. I called and explained what was going on and they assured me that someone will be out as soon as possible.  A bit later the technician came to the house ,first he greeted us then he put on his shoe covers before coming into the house.  When I showed the technician the problem he was very patient in explaining to me what all needed to be done and he answered all my questions in a way that i could understand. I was impressed with his knowledge of the business but more impressed with his people skills. That night was our first time to call a plumber and if we ever need one again we will definitely call them!"
Recommended by68%of homeowners
Avatar for CG Handyman Services
CG Handyman Services
5.0(
13
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Waterloo, IL and surrounding areas

In business since 2009

Emergency services offered

Over 25 Years Experience,Also work as a plumber for the government contractor, also served as a plumber instructor for Vatterott college,Home Advisor as a plumber, Handyman Connection as a plumber, family own business since 2009. BBB Accredited Business.

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+6

Recommended by100%of homeowners
Avatar for All State Mechanical, LLC
All State Mechanical, LLC
4.2(
34
)
Water Heater - Install or Replace

Serving Waterloo, IL and surrounding areas

In business since 2017

Free estimates

Credit card accepted

Welcome to All State Mechanical, LLC. We are family owned and operated. We are a full-service HVAC and mechanical contractor. From St. Louis to Columbia, to Cape Girardeau to Poplar Bluff, we have you covered in Missouri. From Jerseyville to Cair, we have you covered in Illinois as well. Our workmanship and quality of service is top of the line in both residential and commercial service.

furnace
Response time12 hrs
Recommended by92%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Waterloo, IL and surrounding areas

In business since 1971

Credit card accepted

"The yearly service works out to be $50 a month. We've had two water heaters replaced through them because of a fault in them. They're usually very responsive. I like that I can request the service online. The only thing is, I wish that there was a better avenue for emergency services. If something doesn't work right away usually it takes a couple of days to get someone out and sometimes you can't wait two days without water."
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+2

Recommended by65%of homeowners
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Water Heaters FAQs, answered by experts

If your system is not vented properly, you could experience what’s called backdrafting. Backdrafting is when your ventilation system isn’t working as it should, and instead of releasing gases outside, they get trapped inside your home. 

Gas and propane water heaters create a few types of combustion gases, but the most dangerous is carbon monoxide. If there’s too much build-up of these gases inside your home, it can lead to carbon monoxide poisoning.

There are pros and cons to tankless water heaters. They are more efficient than traditional tank water heaters, and maintenance costs are lower. These units are also much more compact. On the other hand, they cost about twice as much to install as traditional tank water heaters and are more limited in terms of flow rate.

An average-sized empty water heater weighs around 150 pounds. Tankless water heaters are much lighter, weighing between 10 and 50 pounds. The smaller size and added convenience come at a price, though—tankless water heaters average about twice the price of their traditional counterparts.

Electric water heaters use a high amount of electricity, so they’re best for homeowners who subsidize their electric bill with solar or who live in an area with inexpensive electricity. For others, gas water heaters versus electric water heaters may be the more cost-effective solution, with the added bonus of heating water quickly and efficiently. No matter which you choose, you can lower your water temperature as low as possible to keep costs down.

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, IL homeowners’ guide to water heater services

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