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

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

Serving Dover, 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 Dover, 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 Isotope Service Co. LLC
Isotope Service Co. LLC
5.0(
14
)
Tankless Water Heater - Install

Serving Dover, FL and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Blake was professional and knowledgeable from the beginning, he explained about the tankless water heater and the two units to choose from. The was installed the following day, my wife and I are very pleased with the results."
Filtration System
Filtration System
Water Heater
Repipe Whole Home
Repipe Whole Home

+91

61 neighbors recently requested a quote
Avatar for Elite Trade Services LLC
Elite Trade Services LLC
4.3(
325
)
Tankless Water Heater - Install

Serving Dover, FL and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

Elite Trade Services, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. \n

Bathroom remodel
Bathroom remodel
Bathroom remodel
Bathroom remodel
Bathroom remodel

+8

20 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Cass Plumbing, Inc.
Cass Plumbing, Inc.
4.3(
2,490
)
Tankless Water Heater - Install

Serving Dover, FL and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"Very relieved that the plumber knew how to install the Tankless water heater. Calm expert put all my fears to rest. Thank you. Glad I hired your company. Will finish by installing the remote later which will make this job, perfect."
Replacing old pump system
Backflow Device Protection
More pumps to remove
Backflow Device Protection
Steve loves high places..

+19

Response time30 mins
930 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for SPEEDY TECH SERVICES LLC
SPEEDY TECH SERVICES LLC
4.9(
15
)
Tankless Water Heater - Install

Serving Dover, FL and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Outdoor Unit
62 neighbors recently requested a quote
Avatar for A & G Services HVAC And Plumbing Inc
A & G Services HVAC And Plumbing Inc
5.0(
18
)
Tankless Water Heater - Install

Serving Dover, FL and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Great services and on time installation. This company is truly amazing and took care of me big time. Donâ t go anywhere else for HVAC and plumbing work. Thank you A & G."
Response time2 hrs
Response rate97%
16 neighbors recently requested a quote
Avatar for Wowzer Plumbing
Wowzer Plumbing
5.0(
8
)
Tankless Water Heater - Install

Serving Dover, FL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Meet Wowzer! Backed by more than 50 years of combined industry experience, we're bringing a refreshingly retro approach to service with dependable workmanship, friendly people and plenty of reasons to smile.\n

Wowzer Photo's
Wowzer Photo's
Wowzer Photo's
Wowzer Photo's
Wowzer Photo's

+4

173 neighbors recently requested a quote
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