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Top-Rated Tankless water heater installers in Saint Petersburg - Updated Nov 2026

Avatar for ABC Plumbing, Air, Heat & Electric
ABC Plumbing, Air, Heat & Electric
4.9(
654
)
Tankless Water Heater - Install

Serving Saint Petersburg, FL and surrounding areas

Approved (Corporate)

In business since 1948

Free estimates

Emergency services offered

"The work done wasn’t what is shown above, but that was the closest option. The plumbing was checked throughout the house. He inspected all sink and tub/shower drains and valves, the sump pump, hot water heater, and main water shutoff. He explained any possible problems that could be changed. He was pleasant and helpful. I would recommend him and request him for future issues."
Avatar for Pompa Plumbing Group LLC
Pompa Plumbing Group LLC
5.0(
13
)
Tankless Water Heater - Install

Serving Saint Petersburg, FL and surrounding areas

Approved

In business since 2019

Emergency services offered

Credit card accepted

We Are Water Heater Installation, Repairs, & Maintenance Pros Serving All Of Florida \nPompa plumbing specializes in water heater repair and water heater replace. We are Rheem, Rinnai, and AO Smith certified technicians, but we service all water heater manufacturers. \n \nPompa Plumbing provides fast, reliable water heater replacement and water heater repair in all areas of Florida. \n \nWe offer Senior & Military Discounts Warranties and other Competitive Prices.

Rinnai Tankless
Rinnai Tankless
Rinnai Tankless
Commercial Plumbing
Tankless Heaters

+10

16 neighbors recently requested a quote
CLIMATE DESIGN HOME SERVICES, LLC
4.6(
121
)
Tankless Water Heater - Install

Serving Saint Petersburg, FL and surrounding areas

Approved (Corporate)

In business since 1973

Free estimates

Credit card accepted

At Climate Design, we provide HVAC, Plumbing, and Electrical services to the Clearwater, St. Petersburg, Tampa, Sarasota, and Bradenton, and surrounding areas. We’ve been serving homeowners for over 50 years. With over 1,700 5-star reviews, give us a call and experience the difference with Climate Design Home Services.

Recommended by84%of homeowners
Avatar for Isotope Service Co. LLC
Isotope Service Co. LLC
5.0(
14
)
Tankless Water Heater - Install

Serving Saint Petersburg, FL and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"The owner showed up quickly to diagnose a water softener issue. Isotope was the only company that was available to come out on short notice on a Saturday. He provided some options to resolve the issue. Even volunteered his time to help with a separate issue with the kitchen faucet issue. He offered top notch service and explained everything thoroughly. I will use this company for any plumbing issues moving forward."
Filtration System
Filtration System
Water Heater
Repipe Whole Home
Repipe Whole Home

+91

60 neighbors recently requested a quote
Avatar for The Clean Plumbers, LLC
The Clean Plumbers, LLC
4.7(
2,130
)
Tankless Water Heater - Install

Serving Saint Petersburg, FL and surrounding areas

Approved

In business since 1982

Emergency services offered

Warranties offered

"Two old shower pulls were hard to work and one leaking profusely. Also, water heater not making lots of hot water and 12 years old. Asked for a flush and recommendation for replacement. Tech showed up on time and ready to work. Rebuilt pulls quickly and knowledgeably. Attempted to flush water heater but too far gone. Showed me work done and patiently listened to and answered all my questions concerning replacement options. Gave me a good deal on new water heater and was available and ready to install same day. Completed the installation cleanly and efficiently. Couldn’t be happier with the experience. Tech (I’m sorry, I don’t remember his name) was professional and courteous and worked efficiently. Prices are fair and their use of a standardized pricing guide eliminated any feeling that they were pricing on the fly. Two thumbs up."
The Ones with the Bubbles on the Truck
The Ones with the Bubbles on the Truck
The Clean Plumbers Team
The Clean Plumbers Team
The Clean Plumbers Team

+1

27 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Florida Water Heater Pros
Florida Water Heater Pros
5.0(
7
)
Tankless Water Heater - Install

Serving Saint Petersburg, FL and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I cannot recommend this company highly enough. During a difficult time in my life, they stepped up when we needed help the most. They took my situation seriously, showed genuine concern, and went above and beyond to make sure we were taken care of. They arranged to have our water heater needs addressed the very next day, and their responsiveness, kindness, and professionalism made a difficult situation so much easier. It was clear that their concern went beyond simply completing a job. They genuinely cared about helping our family and making sure we had what we needed. It is rare to find a company that wants you to know they care and your not just a number. I am incredibly grateful for the way they handled everything, explained everything and left it all cleaned up like they were never there. I recommend them to everyone and tell them what a good experience it was."
AFTER
BEFORE
Condo
Condo
Condo replacement

+3

14 neighbors recently requested a quote
Avatar for Blue Bear Heating & Air
Blue Bear Heating & Air
5.0(
46
)
Tankless Water Heater - Install

Serving Saint Petersburg, FL and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

We are dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

196 neighbors recently requested a quote
Recommended by55%of homeowners
Garrett Plumbing Inc
4.6(
96
)
Tankless Water Heater - Install

Serving Saint Petersburg, FL and surrounding areas

Approved

In business since 1951

Free estimates

Emergency services offered

"Bryan from Garrett Plumbing is FANTASTIC ! I made an appointment to have a new kitchen sink & faucet installed and Bryan was here the very next day. On-time & courteous & professional & knowledgeable is how I would describe Bryan. Just an all around nice guy & gets the job done correctly the first time & in record time. I absolutely recommend Garrett Plumbing & Bryan. If you are making an appointment with Garrett I would definitely request Bryan for all of your plumbing needs. Thank you. Tommy Baker"
1 neighbors recently requested a quote
Recommended by87%of homeowners
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