Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in Union, MO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Tankless water heater installers in Union

Avatar for Collective Enterprise
Collective Enterprise
5.0(
15
)

Serving Union, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Samuel and Colleen from Collective Enterprise, LLC are the best. They made my anxiety in hiring them go away, since I was unfamiliar with their company. Colleen made sure my project scheduling would accommodate the vendor materials delivery date before the installation started. Samuel arrived each day on time and cleaned the area before leaving. Samuel professionally assembled and installed 2 walk-in, all-wood closet systems. One system was installed off the floor, and the other, free-standing. He did an awesome job. I would not hesitate to recommend Collective Enterprise, LLC. We are so happy with the work done, we will definitely use Collective Enterprise, LLC again for our upcoming project."
Response time2 days
Response rate92%
2 neighbors recently requested a quote
Avatar for Mr. Rooter Plumbing of St. Charles
Mr. Rooter Plumbing of St. Charles
4.8(
5
)

Serving Union, MO and surrounding areas

Approved

In business since 2001

Emergency services offered

Warranties offered

"I called Mr. Rooter because I had called another Plumbing company to come out the night before and they were a no show.  They were extremely friendly over the phone.  I called at approx 8AM and said they'd be able to come out by 11AM.  They called at about 9:30 to say someone was available to come out now and I said that was perfect.  They arrived at 10AM.

Jason was the plumber who arrived and he was very very friendly and professional.  I told him the problem and we discussed pricing up front.  I had a coupon which he said they would definitely honor.  He immediately got to work.  He wore footies over his shoes while in the house.  He worked diligently and answered all of my questions.  After about an hour and being certain the line was clear he cleaned up, we took care of payment which was exactly what was discussed beforehand, and he was on his way.

A very pleasant and hassle free experience.  I will definitely be calling Mr. Rooter for the Franklin County area again for any plumbing needs and would recommend them to anyone needing this kind of work.

The job also comes with a 30 day warranty which I thought was great and definitely put my mind at ease just in case something happened again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for DP Plumbing LLC
DP Plumbing LLC
5.0(
3
)

Serving Union, MO and surrounding areas

Approved

In business since 2015

Credit card accepted

"Donnie was very professional and a good communicator. He cleaned up after himself. He explained everything that needed to be done and did it for a fair price. Definitely recommend and will use him again if I have more plumbing needs."
project photos
1 neighbors recently requested a quote
Avatar for Tap Heating & Cooling
Tap Heating & Cooling
4.5(
19
)

Serving Union, MO and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"Prompt and very professional. Being in a newly purchased home, we were unsure of the condition of the furnace, they were very thorough with their inspection and answered any questions we had. They were great! 
"
install
Cage
Installers Van
Additional Photos
Additional Photos

+5

Recommended by94%of homeowners
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
4.8(
37
)

Serving Union, MO and surrounding areas

In business since 1993

Free estimates

Small jobs welcome

"I had to shut off the water to my house so I needed fast service. Within about a two hour time frame they arrived, took care of my issue and I was able to turn my water back on!"
Gas Water Heater
Short Water Heater
Gas Water Heater
Electric Water Heater
Under Sink

+3

Response time7 hrs
Response rate97%
Recommended by97%of homeowners
Avatar for Re-Bath
Re-Bath
4.2(
38
)

Serving Union, MO and surrounding areas

In business since 1979

Free estimates

Credit card accepted

"Overall, Rebath people are pleasant to work with. Brendan was a top notch craftsman, 'BJ' in office stayed in touch as work progressed. there were some problems with ordering product, receiving wrong product, miscommunication in scheduling, which delayed completion of job beyond our expectations. However job was completed to our satisfaction at last, and quality of product and of work are good.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Recommended by70%of homeowners
Avatar for JONES AIR & WATER
JONES AIR & WATER
5.0(
8
)

Serving Union, MO 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
Showing 1-10 of 21

The Union, MO homeowners’ guide to tankless water heater installations

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