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

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

Serving Largo, FL and surrounding areas

Approved (Corporate)

In business since 1948

Free estimates

Emergency services offered

"Esmir R did a great job and fixed an issue with a leaky and no -functioning humidifier connected to my heating furnace. After this installation of new humidifier the heater furnace started working and a water leak stopped after installation of new and operational humidifier. Thank you."
Avatar for Pompa Plumbing Group LLC
Pompa Plumbing Group LLC
5.0(
13
)
Tankless Water Heater - Install

Serving Largo, 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
Avatar for The Clean Plumbers, LLC
The Clean Plumbers, LLC
4.7(
2,130
)
Tankless Water Heater - Install

Serving Largo, FL and surrounding areas

Approved

In business since 1982

Emergency services offered

Warranties offered

"Our 24 year old electric water heater started giving nothing but cold showers and that wasn't going to cut it. We checked Angies list like we always do and found that the top rated pulmbers for the job we wanted done were "The Clean Plumbers - Phillip Maurici" so that's who we went with. They did the job in no time flat on the day we called them. Jorge and Adam proved to be exellent at what they do, and I wouldn't hesitate to recommend them anytime."
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 Largo, 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 Largo, 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
Avatar for Plumbing Today
Plumbing Today
4.1(
699
)
Tankless Water Heater - Install

Serving Largo, FL and surrounding areas

Approved

In business since 1963

Free estimates

Credit card accepted

"Happy with their installation of an add-on electrical box, so we could get our new electric tankless water heater up and running after Hurricane Irma wrecked our old tank water heater. Very happy with our continuous hot water."
Water Heater Replacement
Water Heater Replacement
Company Photo
Ready to Help You!
Response time50 mins
Recommended by91%of homeowners
Avatar for Cass Plumbing, Inc.
Cass Plumbing, Inc.
4.3(
2,490
)
Tankless Water Heater - Install

Serving Largo, FL and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"I called Cass in November 2021. The hot water heater went out the day before Thanksgiving. Richard, the service repairman, came out that day and replaced the heating element. This past week, almost 7 months to the day, no hot water again. Cass was very busy but Richard did make it out in 2 days. It was the heating element again. He replaced it again and mentioned our water was very 'hard'. There was no charge because it was under warranty. I am now planning to have Cass install a new tankless water heater. I would definitely recommend Cass for your plumbing needs. Richard was prompt, personable and qualified. Customer service is great!"
Replacing old pump system
Backflow Device Protection
More pumps to remove
Backflow Device Protection
Steve loves high places..

+19

Response time30 mins
932 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for RESURRECTION PLUMBING AND DRAIN LLC
RESURRECTION PLUMBING AND DRAIN LLC
4.9(
30
)
Tankless Water Heater - Install

Serving Largo, FL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Best plumbers around!! I came home late on a Saturday night to my kitchen tiles having water coming through contacted Them and they were at my house the next morning. fixed my problem in 5 minutes. Fast and efficient I will definitely recommend them to anyone with plumbing needs. Thank you Brandon and Dave"
New toilet installation
New toilet installation
New toilet installation
Vanity
Plumbing for laundry

+2

Response time3 hrs
Response rate100%
1 neighbors recently requested a quote
...
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