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

Avatar for Pioneer Plumbing Heating and Cooling, Inc by Rite Way
Pioneer Plumbing Heating and Cooling, Inc by Rite Way
4.8(
404
)
Tankless Water Heater - Install

Serving Catalina, AZ and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"This is in a Park Model that has a much smaller water heater. Pioneer installed a MUCH better unit, slightly larger, and installed heavier duty connections to the unit. They had to slightly modify the opening where the water heater fits - no problem at all. They did an excellent job and will definitely use them again, as needed."
Additional Photos
Additional Photos
Additional Photos
Response time1 day
Response rate100%
26 neighbors recently requested a quote
Avatar for ACS Air Conditioning Services
ACS Air Conditioning Services
4.8(
224
)
Tankless Water Heater - Install

Serving Catalina, AZ and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Manny was great and actually came a half hour early. He performed a full inspection and maintenance on our two heating cooling systems. He flushed the water heater. He replaced all the system air filters and checked system safety and operations. Additionally he replaced the batteries in two hard to reach smoke detectors. H took pictures of the overall system condition and discussed what needed to be done now and in the future. Very proffesional
"
New installation
New installation
New installation
New installation
New Duct Work

+5

Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for Done Rite Services
Done Rite Services
5.0(
12
)
Tankless Water Heater - Install

Serving Catalina, AZ and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I have used Done Rite Services for couple of Plumbing jobs as well as fixing my Tankless Water Heater/Pump. They have done excellent jobs on all 3 occasions. The technicians that came- William for Tankless system and Danny for Plumbing issues - were both very professional, courteous, and are very experienced. They never tried to oversell or tried for other extra expenses that most plumbing companies here in town are so famous in trying to push towards you when they come for such jobs. I highly recommend this company to all - and have passed their info to all my friend and family. I will be using them only for all my HVAC, plumbing jobs - and they even do electric jobs as well. The staff at the office (Gina/Casey/Yandai) over the phone - are very professional and courteous as well - and the best part is their appointment system - they have text message reminder 24 hours ahead - and also when the tech is in route - they inform you with their profile picture and name and bio details, so you know when and who is arriving at your door step. Excellent service - keep up the good work - and I will be using you all from now on. Thanks again for the excellent work. Kishor Shrestha"
Always try to Do Rite. Remember to be of Service
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Response rate100%
5 neighbors recently requested a quote
Avatar for Strongbuilt Plumbing, Air, Solar & Electric - AZ
Strongbuilt Plumbing, Air, Solar & Electric - AZ
4.5(
334
)
Tankless Water Heater - Install

Serving Catalina, AZ and surrounding areas

Approved

In business since 2000

Emergency services offered

Warranties offered

"Very professional. The estimate was good, not low and not high. They assigned a top plumber to the task with a large number of assistance to get my job done. The plumbing installation was a work of art! You can always tell when someone is a true craftsman that takes pride in their work. I highly recommend them and will use them again in the future. One important note. There was no pressure sales or up selling. I wanted a particular brand for water heater and they supplied without any issues. Likewise I provided my own water softener and they installed the loop and connections. They are a quality company!"
Strongbuilt Truck #36
EnviroWater
EnviroWater
EnviroWater
Made in USA

+20

Response time4 hrs
19 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Goettl Plumbing - Tucson
Goettl Plumbing - Tucson
4.2(
846
)
Tankless Water Heater - Install

Serving Catalina, AZ and surrounding areas

Approved (Corporate)

In business since 1939

Free estimates

Credit card accepted

"Tankless water heater installed in June developed a leak and corroded. The heater was not installed with proper clearances per the install manual of the manufacturer. However, after bringing up these issues, they promptly moved the heater into a better location providing proper clearances and replaced the corroded parts."
HVAC/Plumbing
HVAC/Plumbing
HVAC/Plumbing
HVAC/Plumbing
HVAC/Plumbing

+6

30 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Frias Service, LLC
Frias Service, LLC
4.7(
56
)
Tankless Water Heater - Install

Serving Catalina, AZ and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I needed some help moving a washing machine and dryer into my laundry room after a renovation of a floor replacement. The company came out right away, was professional, courteous, and did an excellent job installing the appliances and taking care of our needs. I would highly recommend this company."
Frias Service, LLC
Frias Service, LLC
3 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for RPM Plumbing & Mechanical LLC
RPM Plumbing & Mechanical LLC
5.0(
7
)
Tankless Water Heater - Install

Serving Catalina, AZ and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"I’m really happy with the work RPM Plumbing did installing my water heater. Brady was dependable, easy to communicate with, professional, and clearly knows his trade. The job was done right, the workspace was left clean, and he took the time to make sure I understood everything before he left. I would definitely recommend him to anyone needing water-heater or plumbing work."
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