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    Average homeowner rating
  • Verified reviews icon73
    Verified water heater services reviews

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

Avatar for Pompa Plumbing Group LLC
Pompa Plumbing Group LLC
5.0(
13
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Lakeside, 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

Avatar for R STUD PLUMBING LLC
R STUD PLUMBING LLC
5.0(
25
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Lakeside, FL and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"Robby not only helped me with a complete remodel of my bathroom but also replaced my hot water heater and made a new connection for a washing machine to be moved inside the house while turning the old connection, in an outside shed, into a much needed utility sink. All work was done in Jacksonville, FL at 3235 Hickorynut st. The bathroom remodel was on a very tight time schedule of 4 weeks and a complete gut job. Robby was an absolute professional and able to make the 4 week goal from start to finish. Pricing was very affordable for the remodel, new washing machine connection, utility sink install and hot water heater replacement. Always on time and great communication throughout the project. Call him with your project ideas and plumbing needs and you will not be disappointed. Highly recommend this plumber!"
Repair? Upgrades? (Thx for visiting our page)
Drain Cleaning
Remodel
Remodel
Repipe

+27

Response time3 hrs
Response rate93%
3 neighbors recently requested a quote
Avatar for Flow Solutions, Inc.
Flow Solutions, Inc.
4.5(
223
)
Tankless Water Heater - InstallWater Heater - Install or ReplaceWater Heater - Install or Replace - For Business+2 more

Serving Lakeside, FL and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Flow solutions gave me a fair and competitive estimate directly over the phone for my new water heater installation. While on site, the plumbers gave me an overview of the project and listened to my concerns. They were prompt, professional, and respectful to me and my property. I'm very pleased with their work."
Response time9 hrs
Response rate94%
Recommended by98%of homeowners
Avatar for Nolan Plumbing & Irrigation, Inc.
Nolan Plumbing & Irrigation, Inc.
4.4(
86
)
Water Heater - Install or ReplaceWater Heater - Repair or Service

Serving Lakeside, FL and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Warranties offered

Small jobs welcome

"Had immediate interaction for my request to install a tankless water heater. The team was knowledgable and provided suggestions for installation along with maintaining the water heater. While I already purchased the water heater the cost to install was minimal. I would recommend Nolan Plumbing and Irrigation and also plan to use this company again when another plumbing issue arises. Thanks Nolan for the suggestions and quick response for installation of water heater."
Commercial Backflow Testing
Residential Backflow Testing
Residential Backflow Prevention
Commercial Backflow Prevention
Outdoor Kitchen

+25

Response time1 day
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for CGC Home Services
CGC Home Services
4.2(
54
)
Tankless Water Heater - InstallTankless Water Heater - RepairTankless Water Heater - Repair - For Business+4 more

Serving Lakeside, FL and surrounding areas

Approved

In business since 1946

Free estimates

Emergency services offered

"My husband and I were referred to CGC Water by close friends. Everything from the first appointment with the sales man to having the project complete felt very intentional and customer focused. They took water samples, listened to what we wanted, answered all of our questions (we had plenty) and set us up with everything we needed. I was really happy that they got us on the schedule quickly, we did not have to wait 4+ weeks that other projects have taken. The install was very thorough and even though nobody will see the equipment the install spot was left clean and the piping all looks nicely hung. That may not matter to everyone but I noticed. Before leaving, the technician made sure all equipment was working and retested the water to make sure it meets our expectations. Now we have a Kinetico whole house water softener, and a Kinetico RO drinking water system. I am so glad we went with the Kinetico system. I can tell a difference in everything! I dont get spots on the dishes anymore, my towels dont smell funky after washing them and having good water has even helped with dry skin. I love the drinking water too! I really can tell a difference from other drinking water and I always fill my water bottle up at home before leaving the house because other water just does not compare. I really appreciate the follow up as well, we opted for the scheduled salt deliveries and filter changes so we dont have to worry about it as much. I highly recommend CGC and the Kinetico water equipment."
Water softener and iron/odor filter
Water softener
Water softener
3 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for J & W Heating and Air
J & W Heating and Air
4.3(
25
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install

Serving Lakeside, FL and surrounding areas

Approved

Super Service Award Winner

In business since 1966

Free estimates

Emergency services offered

Since 1966, the heating and cooling experts of J & W Heating and Air + Plumbing are committed to providing you with superior customer service to address all of your indoor comfort needs. We are a Veteran-owned and family operated full service residential and commercial HVAC & plumbing provider in Jacksonville and surrounding Northeast Florida areas. Regardless of the size of the project, we develop a carefully coordinated strategy that meets all your needs. Our highly qualified Comfort Advisors, Service Technician, and Installers will listen to your concerns and provide you with the very best indoor comfort solutions. We offer a wide variety of indoor comfort solutions and look forward to earning your business!

On the Job!
On the Job!
On the Job!
On the Job!
J&W on the Job!

+4

126 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for South Eastern Pure Water
South Eastern Pure Water
4.5(
267
)
Water Heater - Install or ReplaceWater Heater - Repair or Service

Serving Lakeside, FL and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

At Southeastern Pure Water, we’re committed to providing honest, reliable service and high-quality water treatment solutions for homeowners throughout Jacksonville and the surrounding areas.\n\nOur reputation is built on integrity, fair pricing, expert workmanship, and putting our customers first. We take pride in delivering personalized solutions — not high-pressure sales tactics — and treating every home like it’s our own.\n\nWith extensive experience in water treatment and plumbing, we specialize in helping families enjoy cleaner, safer, better-tasting water through professional installation and service you can trust.\n\nAs the exclusive dealer for Liberty Pure Solutions, we offer advanced water filtration and softening systems designed to improve your home’s water quality and protect your plumbing and appliances.\n\nAt Southeastern Pure Water, your satisfaction and peace of mind are always our top priority.

Water Treatment
Water Treatment
Water Treatment
Water Treatment
Water Treatment

+1

109 neighbors recently requested a quote
Recommended by95%of homeowners
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Water Heaters FAQs, answered by experts

While not all homes require a hot water heater expansion tank, they are necessary in most newer homes and are often mandated by local building codes. Codes typically require an expansion tank if your plumbing system is a 'closed-loop' system, which often includes a backflow preventer or pressure regulator on the main water line. Some municipalities have specific requirements. Installing an expansion tank on a closed system is crucial, as it prevents excess pressure that can damage your water heater and other appliances, potentially shortening their lifespan. However, tankless water heaters do not require an expansion tank.

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 right way to vent a gas water heater is to have a pipe directly upward or slopes upward out of the house. Because hot air naturally rises, this type of venting will efficiently ensure that all gas moves out of the house. Your system may rely on fans or blowers as well.

Unusual noises, lack of hot water supply, efficiency loss, and visible leaks are signs of necessary replacement beyond mere repair.

Water expands when heated and also when freezing. When water is heated, it expands by around 4%. For a full water heater, this is one of the main reasons malfunctions occur—the hot water has nowhere else to go but out. Due to the constant expansion and reduction in volume, it’s recommended (required in most places) that an expansion tank be installed.

The Lakeside, FL homeowners’ guide to water heater services

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