4.6 
63 *The Angi rating for Water Heater Service companies in Waterloo, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
*The HomeAdvisor rating for Water Heater Service companies in Waterloo, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
Last update on September 22, 2026
Serving Waterloo, WI and surrounding areas
Approved
In business since 1984
Free estimates
Emergency services offered
"Cardinal Heating and Cooling is my go-to for my furnace, AC, water heater and water softener. Their technician Alejandro, completed the annual furnace tune-up today."
+15
Serving Waterloo, WI and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quality work
"Absolutely 100% professional and respectful. I highly recommend these guys, we were in need of a new hot water heater, the job was completed on time as promised with zero mess left behind."
Serving Waterloo, WI and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"I urgently needed my water softener replaced. He came the same day, made an adjustment to the tank so that the overflow faced the drain and stopped spilling brine onto the water heater. Then he returned the next day and replaced the water softener for a very reasonable price. Kurt responded quickly to texts and my needs."
Serving Waterloo, WI and surrounding areas
Approved
In business since 2005
Free estimates
Warranties offered
"They were fast and efficient. Great job! And very nice people, too!"
+4
Serving Waterloo, WI and surrounding areas
Approved
In business since 2004
Free estimates
Warranties offered
"Doug Wilkin was friendly and professional. He checked my water heater, and claimed that I would have more hot water, but I don't get enough for my walk-in tub. Maybe I'll have to figure out how I can buy a new one."
Serving Waterloo, WI and surrounding areas
In business since 1949
Free estimates
Emergency services offered
"They provide a friendly service, I had a good experience with sales and service, and they are very efficient and clean."
Serving Waterloo, WI and surrounding areas
In business since 2001
Free estimates
"These guys were awesome! They were fast and reasonably priced. The only reason I didn't give five stars is that they placed the water softener tank in front of my heater, and we can't get our filters in and out. That being said, my husband never told me where it needed to be, and I don't know what I don't know. Thanks for the hot water!!"
Serving Waterloo, WI and surrounding areas
In business since 1931
Free estimates
Emergency services offered
"The 2 workers were on time and performed the required work to install and remove the old water heater. They seemed in a big hurry ti finish and did not ( in my opinion) check the gas lines. 2 days after the installation there were 2 gas leaks and I had to call MGE to fix."
Serving Waterloo, WI and surrounding areas
In business since 2017
Free estimates
At Installations By JJC, we are dedicated to customer satisfaction on every job. We specialize in the installation or full replacement of water heaters. Locally owned and operated, we're known in the area for our prompt service and attention to detail. Give us a call today!
Serving Waterloo, WI and surrounding areas
In business since 2016
Free estimates
Emergency services offered
Atkinson Maintenance is more than just a maintenance company we do everything from HVAC service and Maintenance to your small handyman jobs and "honey to do lists"
+24
From average costs to expert advice, get all the answers you need to get your job done.
Looking to replace or upgrade your water heater? Use this water heater replacement cost guide to see what the work will cost and what factors affect your total.
A water heater flush costs $160 on average but can vary based on the unit size, type, labor, location, and more. Keep reading to learn how much you could pay.
Find out the average tankless water heater repair cost, what impacts pricing, and how to save. Get expert tips to plan your repair budget with confidence.
Done with cold showers and dish washing? Hire a water heater installation pro near you to get back to comfort and safety quickly.
Who can install a water heater for you? Look to hire a water heater installation pro or a licensed plumber for this job because of the challenges involved.
The average lifespan of water heaters is 6 to 15 years for conventional models and up to 20 for tankless ones, but it can be less if they are not properly maintained.
