Top-rated water heater pros.

Best water heater pros near Marathon, FL

Enter your zip and get matched with up to 5 pros

Need a pro for your water heater service project in Marathon, FL?

Select your specific project to find the pro for you.

Top-Rated Water heater pros in Marathon - Updated Nov 2026

Avatar for Florida Keys Plumbing Corp
Florida Keys Plumbing Corp
4.8(
18
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessWater Heater - Install or Replace+3 more

Serving Marathon, FL and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Louis and his assistants were courteous, on time, efficient, and did a great job finding and fixing what turned out to be multiple leaks. Louis kept us informed through out the process. They even mopped their work area after the leak was fixed. I would highly recommend this company to anyone needing an honest, hard working plumber!"
Shower valve installation
Water heater installation
Shower valve installation
Rough in fo Sanitary line for toilets,
Pot filler valve .

+7

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for GGR quality construction llc
GGR quality construction llc
5.0(
14
)
Water Heater - Repair or ServiceSolar Water Heater System - InstallTankless Water Heater - Install+6 more

Serving Marathon, FL and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I highly recommend this plumbing company! They did an excellent job in my home — very professional, punctual, and respectful. The technician explained everything clearly, fixed the problem quickly, and left the area clean. Their prices were fair, and the quality of work was outstanding. I will definitely use their services again and recommend them to anyone who needs reliable plumbing work. Thank you for such great service! ⭐️🔧💧"
32 neighbors recently requested a quote
Avatar for Keys Plumbing, LLC
Keys Plumbing, LLC
5.0(
1
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Marathon, FL and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

Family Owned Operated. \n \n5 years of experience. \n \nWe are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate! \n \n \nfacebook

Response time2 days
Recommended by100%of homeowners
Allure Plumbing Corp.
4.9(
57
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Marathon, FL and surrounding areas

In business since 2002

Free estimates

Offers commercial services

"These guys are the best. They installed a Water Heater for me and did an amazing job! Quick, efficient, friendly and very professional. I highly recommend them for your next plumbing project!"
Response time3 hrs
Response rate95%
Recommended by96%of homeowners
Hallmarc, Inc.
5.0(
5
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Marathon, FL and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Amazing technical expertise and physical strength displayed by Mr. Hall who got the water heater to second floor by himself and safely installed my brand new unit. He's also maintained my AC for the last 7 years and recently replaced my thermostat. He is also knowledgeable and able to make electrical repairs and wiring. He is also an honest person who will advise you accordingly."
Water Heater Install
Insulation
Insulation
Recommended by100%of homeowners
Island Design Build and Remodeling, Inc.
4.5(
11
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Marathon, FL and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"Jonathon and his team are just a great company to deal with. We needed a new hot water heater installed and he called quickly to give us an estimate and was able to install it the same day. Excellent customer service, Talked to him about some other jobs that we need to have done and we look forward to seeing him again soon. Great Job, IDB!! David & Bonnie"
Response time1 day
Recommended by90%of homeowners
Avatar for All American Solar LLC
All American Solar LLC
4.6(
10
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Marathon, FL and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"Brandon Bing and Steve Lorenz are owner-operators and I found both of them to be skilled in their trade, honest and hardworking The installation of the water heater and solar panels went well and any bumps were smoothed out. I am initially disappointed in the Solar array's electric impact but I have a few trees that I need to take out and I still need to get my FPL net metering installed. At times I am producing more than what I consume so until I get net metering installed I cannot capitalize on overproduction. These comments are in no way a reflection on All American Solar for their work ethic or products. In fact, the array is expandable so that I can add more panels in the future. The Solar hot water heater is fantastic and has saved me about $60 per month off my electric bill. I would gladly recommend All American Solar for your solar panels or a solar hot water project and I would hire them again."
Photo 1
Photo 2
Photo 3
Photo 4
Photo 5

+11

Recommended by90%of homeowners
Showing 1-10 of 15
Water Heaters FAQs, answered by experts

Unless you have previous plumbing experience or extensive experience with water heaters, you should avoid replacing your electric water heater yourself. This process involves disconnecting wiring and parts from the old water heater and reinstalling them onto the new one, among other difficult tasks. This job is best left to the pros to make sure that everything is connected correctly to avoid serious leaks or malfunctions.

The lifespan of a water heater depends on its type, usage, and maintenance schedule. Traditional tank-style water heaters typically last between 8 and 12 years, though the range can be as wide as 6 to 15 years. Within this category, gas models often last 8-12 years, while electric models may last 10-15 years. In contrast, tankless water heaters have a significantly longer lifespan, often lasting up to 20 years or more. Factors like heavy usage, hard water, and sediment buildup can shorten a unit's life. To extend its lifespan, it is crucial to perform regular maintenance, such as flushing the tank annually and scheduling professional inspections. If your unit is over a decade old and shows signs of rust, leaks, strange noises, or inconsistent heating, it is likely time for a replacement.

Yes, you can convert a gas water heater to an electric one, but it is a complex process. You will need to ensure there is adequate power for the new electric unit, as they require more power than gas models. The project also involves safely closing off the gas lines and ventilation, and some cities may require a permit for the conversion. The cost can range from $1,500 to $4,100, depending on the installation scope, plumbing and electrical work, and the water heater model. For an accurate quote, it's best to contact a local professional. Also, be aware that your monthly utility bills may increase after the conversion, as natural gas is typically cheaper than electricity.

The time it takes to install or replace a water heater depends on the type of heater and the complexity of the job. A professional can typically replace a standard tank-style water heater in one to three hours. However, if the work area is tight, such as a small closet or crawl space, the job could take four to five hours. Replacing an existing tankless unit takes about two to three hours, while upgrading from a tank-style to a tankless water heater is more complex and can take four to six hours. The project will take longer if you are switching fuel sources, such as installing a gas heater which can add about an hour to the timeline, or if the unit needs to be relocated.

Flushing biannually, checking the anode rod, and temperature settings maximize equipment lifespan while reducing surprise costs.

The Marathon, FL homeowners’ guide to water heater services

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