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Top-Rated Tankless water heater installers in Union - Updated Nov 2026

Avatar for PANDA PLUMBING SOLUTIONS LLC
PANDA PLUMBING SOLUTIONS LLC
5.0(
23
)
Tankless Water Heater - Install

Serving Union, IL and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Panda Plumbing Solutions provides reliable, affordable, and family-friendly plumbing services to homeowners in the greater Chicagoland area. We combine expert craftsmanship with honest pricing to keep your home safe and comfortable. From quick repairs to full system installations, our mission is simple: protect your home, serve your family, and deliver plumbing solutions you can trust.

Water treatment system
Tankless water heater
Tankless water heater
2 neighbors recently requested a quote
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,299
)
Tankless Water Heater - Install

Serving Union, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"It couldn’t have gone better! Carl was experienced, knowledgeable and friendly. Plus, he smelled gas which is why he replaced the valve on my water heater. It was a great visit!"
Additional Photos
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Response time9 hrs
44 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for TRIANGLE PLUMBING LLC
TRIANGLE PLUMBING LLC
5.0(
32
)
Tankless Water Heater - Install

Serving Union, IL and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Triangle Plumbing, operated by a seasoned professional, offers comprehensive plumbing solutions for both residential and commercial clients. With years of experience and a commitment to excellence, we provide a full range of services, including installations, repairs, and 24/7 emergency assistance. Combining quality workmanship with competitive pricing, Nathan and his crew ensure customer satisfaction through transparent communication and prompt, efficient service. Contact Triangle Plumbing for expert solutions tailored to your needs and make us your dedicated plumbing contractor to address all your plumbing concerns with precision and care.

1 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for 1st Response Plumbing & Drain, Inc.
1st Response Plumbing & Drain, Inc.
4.4(
42
)
Tankless Water Heater - Install

Serving Union, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Great Job by Glenn getting in the new water heater and removing the old in a tight spot. Very timely, Professional , and a great value. Took the time to make sure the job was done correctly. couldn't be happier with the results. I would highly recommend Wagner Family Plumbing for all your plumbing needs!!"
Mainline Sewer Machine
Fully Stocked Trucks
Multiple Pits
Pumps
Fully Stocked Trucks

+7

Response time9 hrs
3 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for TDH Mechanical Heating & Cooling Contractors
TDH Mechanical Heating & Cooling Contractors
4.7(
366
)
Tankless Water Heater - Install

Serving Union, IL and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Tim and his team exceeded every expectation I have. I am an educated consumer of home improvement services and have contracted for numerous projects over the past 10 years in a 100 year old bungalow. The TDH team was the easiest and by far the best to work with of all contractors. They responded within an hour to my initial request and was on site the same day to inspect the site and assess my needs. We discussed numerous options at all price points and decided on a complete replacement of the water heater, hot water heat boiler and the piping. I had final quotes in less that 3 hours and they responded within hours with any question I have. They were able to schedule the work within 2 weeks. The On-site team of Chris, Bernie, and Zeorge also installed a two zone system with computerized controls attached to two smart thermostats. The work was scheduled to 2 days of on site activity. The team arrived exactly on time, 7AM,on the scheduled day. They laid down drop cloths and 100% of all debris and trash was removed. They were completely done by the 2nd day, on schedule. When the work was done, the job site was spotless, Chris did the walk through and review of all the new equipment, answering every one of my numerous questions. The work was flawless and neat. Very professional. Tim, Jim, and his team set the standard for how contracting work should be done, from the first contact through the end of the project."
Additional Photos
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Additional Photos

+18

Recommended by94%of homeowners
Avatar for J. Blanton Plumbing
J. Blanton Plumbing
4.4(
378
)
Tankless Water Heater - Install

Serving Union, IL and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"Water heater is 7 years old (nearing end of life).  Pilot light went out on Wednesday evening and we couldn't get it lit.  We called them and they would have come out late that night, but we said no, come out on Thursday.  They called Thursday morning at 9am and said they would be leaving their garage in 10 minutes, so they made it to our place by 9:30am.  Two guys came and put on booties before entering.  (I wish Comcast repairmen would do that!)  They got the pilot lit immediately, but after finding out how old the heater was plus our problems the previous night lighting it, they said the pilot might go out again very soon.  We also had that feeling.  So they wrote up 4 possibilities with their prices for us (as we had discussed going to a tankless system).  One of the options was replacing the thermocoupler for $427.  One was installing a new pilot assembly for $499.  One was installing a tankless water heater for $6000, and the last one was to install a 40 gal. water heater for $1,620.  We chose the pilot assembly, and after using the 10% off coupon that J. Blanton has on their Angie's site, the cost to us was $448.96.  We don't know if this is a good price or not, which is the reason we didn't grade the price.  The work was performed quickly and professionally.
"
Jack Blanton
Jake Blanton
Our Company
Recommended by84%of homeowners
The Plumbing Doctor
4.4(
77
)
Tankless Water Heater - Install

Serving Union, IL and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"We actually had called Emanuel Brothers first since their name was on the water heater. But, after the amount of time and money they quoted us I decided to check Angie's. We had John come out and take a look and he told us he could do the same work for almost $800.00 less! I can't say I didn't have some trepidation. First, just how is it possible to do so much less work than we were told would be necessary (we had 2 water heaters. Neither of which worked after nearly 20 years, that had to be removed first to make room). And, for so much less. Emanuel Brothers were so perplexed by our situation that they had to call the boss to come out and explain everything to us. But, John had this "no problem" kinda attitude. Both refreshing and disconcerting. But, in just a couple of hours he had not only delivered a new water heater, he had the other 2 removed and the new one installed. And its been working flawlessly.
"
Recommended by84%of homeowners
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