Lester
Plumber
Open 24 hours, 7 days a week
FREE estimates and FREE diagnosis
Water heaters
Experience endless hot water with our expert tankless water heater installation and repair services, offering efficiency and reliability for your home.
Tankless acting up or thinking of going tankless? We service every major tankless brand and check your gas line, venting and electrical before we quote a Rheem install.
Home Therapist serves Tampa Bay, Florida. In the area? FREE estimates and FREE diagnosis.
At a glance
Expert technicians delivering trusted HVAC and plumbing solutions for over a decade.
Whether you need a quick repair or installation our expert team is here to provide clear, upfront pricing.
We understand that plumbing and HVAC issues can’t wait, that’s why we offer same-day services for all your plumbing and HVAC needs.
| Service | Price |
|---|---|
| Tankless Electric (8-13 KW) | $1,278 to $1,472 |
| Tankless Electric (14-24 KW) | $1,490 to $1,760 |
| Tankless Electric Elite (Stiebel Eltron) | $1,960 to $2,860 |
| Tankless Gas (7-9.5 GPM, non-condensing) | $2,938 to $3,394 |
| Tankless Gas (condensing) | $2,854 to $3,254 |
| Tankless Gas Elite (condensing) | $3,360 to $4,660 |
| Tankless Maintenance | $89 every visit |
Pricing updated April 2026. All prices include equipment, installation, and warranty. Free estimates.
All projects include FREE in-home estimate, FREE diagnosis on existing equipment, and our 1-year parts & labor warranty.
Tankless Repair Tier
$279
Rheem Performance Plus Install Tier
Up to $4,660
Financing available with $0 down payment and rates from 0% APR for qualifying applicants. Florida's HEAR rebate (up to $1,750) will apply to heat pump water heater alternatives once it opens, if you are on the fence between tankless and hybrid.
Every Rheem Performance Plus tankless we install in Tampa includes the EcoNet Wi-Fi module with leak detection. Useful in Tampa specifically because most water heater installs sit in attics, garages, or upstairs closets where a slow drip can run for weeks before anyone notices. The leak alert sends a phone notification the moment water hits the pan or pressure drops unexpectedly. Pairs cleanly with usage tracking so you can see exactly when your hot water demand peaks. No subscription fee.
Want a tankless install or have an existing brand that needs service? Call (813) 343-2212 for a FREE diagnosis or FREE install estimate.
How Does Our Tankless Service Work?
Whether you’re facing a simple issue or a more complex repair, our expert technicians are equipped with the latest tools to quickly diagnose and resolve any problem. We take pride in offering fast response times, clear pricing, and the ability to service all makes and models. From routine maintenance to urgent repairs, Home Therapist is dedicated to restoring your home’s comfort and efficiency, giving you peace of mind every step of the way.
Most Tampa tankless repairs fall into a few patterns. Flow sensor failures (no hot water despite firing) cost $325 to $450. Igniter or flame rod replacement runs $375 to $575. Control board replacement (the most expensive common repair) is $625 to $950 depending on the brand. Heat exchanger replacement, which is rare under warranty but expensive out-of-warranty, runs $1,200 to $2,200 plus labor.
For tankless units 12 plus years old, repairs over $700 typically do not pencil out. A new Rheem Performance Plus install at $1,278 to $4,660 with the 12-year heat exchanger warranty resets the lifespan clock. For Tampa homes still on a 12 plus year old Navien or Rinnai with a board failure, we will quote both the repair and the Rheem replacement so you can make the call with full numbers.


Real visits our licensed technicians completed in Tampa. Every job starts with a FREE estimate and FREE diagnosis.
Recent reviews from Tampa Bay homeowners, refreshed every day from Google. See all our reviews.
What Tankless Water Heater Installation Repair Customers Say
Real Google reviews from Tampa Bay homeowners. Source: Home Therapist verified Google Business Profile (1,300+ five-star reviews aggregate).
★★★★★
They are very professional, punctual, and organized. Adarberto is a great plumber. His experience and knowledge left us with a lot of confidence and peace of mind. We will definitely call them again and will always recommend them. Thank you very much.
★★★★★
I had a great experience with Alejandro from Home Therapist Cooling, Heating, and Plumbing. He repaired two toilets and installed the water line to my new refrigerator after the delivery team refused to connect it due to the existing plastic line. Alejandro truly went the ext..
Need it faster? Call (813) 343-2212.
Scale in the heat exchanger is the usual cause. A plumber can descale it or tell you if a repair or a new unit makes more sense. The estimate is FREE.
Our Simple Tankless Water Heater Installation & Repair Process. By Your Side at Every Step
Tampa tankless installations and repairs split into two camps. Newer Westchase, Channelside, and New Tampa builds with modern PEX and proper 3/4 inch gas runs are clean retrofits. Older South Tampa, Seminole Heights, and Carrollwood homes need gas line upgrades, venting work, and sometimes a service panel review for electric tankless. We install and service all major brands (Navien, Rinnai, Bosch), and Rheem Performance Plus is our preferred install. FREE diagnosis on every visit.
Licensed CFC1431159 (Plumbing) | CAC1819196 (HVAC) | 1,300+ Five-Star Reviews
A 199,000 BTU tankless requires a 3/4 inch gas line minimum, often 1 inch depending on total run length and other gas appliances. Older Tampa homes (pre-2000 South Tampa, Hyde Park, Carrollwood) frequently have 1/2 inch gas runs to the water heater closet that cannot feed a tankless without an upgrade. We measure the run, calculate total connected load, and quote the gas line work upfront. Most upgrades run $375 to $850 depending on length and routing.
City of Tampa water averaged 10.8 grains per gallon of hardness in 2024. Tankless heat exchangers scale faster than tank shells because water flashes through narrow channels at high temperature. In Tampa hard-water ZIPs (central, New Tampa, parts of Carrollwood), we recommend either a dedicated softener pre-treat or annual descaling service. Without one, scale buildup cuts efficiency and can void the Rheem 12-year heat exchanger warranty. We include the first descaling year-one as part of the install.
Tampa has plenty of Navien, Rinnai, Bosch, and Noritz units already installed in 2010s and 2020s builds. We service all of those for diagnostic, descaling, board replacement, igniter, flow sensor, and venting issues. For new installs our preferred model is Rheem Performance Plus, and we install other brands too. Rheem stocks parts well in Tampa, has a 12-year heat exchanger warranty, includes Wi-Fi monitoring with leak alerts, and the EcoNet app integrates cleanly into your home network.
Our Service Area
Since 2011, our locally owned business has proudly served the Tampa Bay Area with top-quality HVAC and plumbing services. We’re dedicated to building lasting relationships with our neighbors, providing exceptional service to both homeowners and local businesses alike.
More Than Tankless Water Heater Installation & Repair Solutions
We know you’ve got plenty to manage, so let us take the stress out of your tankless water heater installation and repair. At Home Therapist, we offer clear, honest estimates with no hidden fees. With our expertise and commitment to quality, your home will be back to comfort in no time. Explore our other services to see how we can help!
Tampa, FL: Tankless water heater installation and repair Service Area
Our plumbing work is done under Alejandro Morales’s Florida Certified Plumbing Contractor license, CFC1431159. Every tech is background-checked and drug-tested, factory-trained, and trains with us every week. Meet the whole team.
Plumber

HVAC and plumbing technician
Got questions about Tankless Water Heater Installation & Repair in Tampa Bay? We’re here to help! If you don’t see the answer you’re looking for, don’t hesitate to reach out, we’d love to assist you!
The most common problem is mineral scale buildup inside the heat exchanger. In Tampa Bay's hard water environment, calcium and magnesium deposits restrict flow and force the unit to work harder, triggering error codes and cold-water bursts. Annual descaling flushes prevent most of these failures. Home Therapist has completed 1,203 jobs in Tampa in the last 12 months homeowners across plumbing and HVAC services.
Yes, most tankless water heaters can be repaired. Common fixable issues include failed ignitors, faulty flow sensors, scaled heat exchangers, and tripped error codes. A licensed plumber can diagnose the root cause on the first visit. Home Therapist offers free diagnosis on every visit and holds plumbing license CFC1431159, so you pay only for the repair, not the trip.
A properly maintained tankless water heater typically lasts 15 to 20 years, roughly twice the lifespan of a traditional tank unit. In Tampa Bay's high-humidity, hard-water conditions, annual descaling and periodic filter cleaning are the two maintenance steps that most directly protect that lifespan.
Tankless water heater repair costs vary by the failed component. A new installation or full replacement in Tampa runs $1,278 to $4,660 depending on unit size and gas or electric configuration. For repairs, Home Therapist provides a free diagnosis on every visit so you receive an exact price before any work begins. Call (813) 343-2212 or request a free estimate online.
Installation costs range from $1,400 to $5,600, depending on factors like brand, fuel source, flow rate, and labor rates. Additional expenses may include potential system upgrades; permit fees are billed separately.
Tankless water heaters provide unlimited hot water on demand, are more energy efficient, take up far less space, and last 15 to 20 years compared to 8 to 12 for tank units. In Installation Repair Tampa, where standard water and year-round use shorten tank life, going tankless often makes more financial sense long-term. You will never run out of hot water during back-to-back showers, and your the local utility bill will reflect the efficiency difference.
Tankless water heater installation in Installation Repair Tampa typically costs $2,500 to $5,000 depending on whether it is a gas or electric unit and what modifications are needed. Converting from a tank to tankless may require new gas lines, venting, or electrical work. standard Florida homes from the various decades sometimes need minor plumbing upgrades. We provide free estimates and offer financing to make the upgrade affordable for Installation Repair Tampa homeowners.
We install and service Rinnai, Navien, Rheem, and Noritz tankless water heaters. For Installation Repair Tampa homes with standard water, we often recommend models with built-in scale detection and recirculation features. Florida water generally has moderate mineral content that builds up over time. We match the brand and model to your household size, hot water demand, and budget. All units we install come with a manufacturer warranty and our labor guarantee.
Tankless water heaters need annual descaling to remove mineral buildup from the heat exchanger. In Installation Repair Tampa, where standard water accelerates scale formation, this maintenance is essential for performance and longevity. Florida water generally has moderate mineral content that builds up over time. The descaling process takes about an hour and uses a vinegar solution pumped through the unit. We also check the inlet filter, ignition system, and venting during service. Skipping maintenance can void the warranty.
We specialize in providing top-of-the-line cooling solutions for your home or business. From installation and maintenance to repair and replacement, we offer a comprehensive range of services to ensure your air conditioning system runs smoothly all year round.
We specialize in providing top-of-the-line cooling solutions for your home or business. From installation and maintenance to repair and replacement, we offer a comprehensive range of services to ensure your air conditioning system runs smoothly all year round.
We specialize in providing top-of-the-line cooling solutions for your home or business. From installation and maintenance to repair and replacement, we offer a comprehensive range of services to ensure your air conditioning system runs smoothly all year round.
We specialize in providing top-of-the-line cooling solutions for your home or business. From installation and maintenance to repair and replacement, we offer a comprehensive range of services to ensure your air conditioning system runs smoothly all year round.
Our Tankless Water Heater Install & Repair Testimonials
Since 2017, Home Therapist has proudly served thousands of homes across the Greater Tampa Bay area with expert tankless water heater installation and repair. We provide transparent, affordable pricing and back our work with an exclusive satisfaction guarantee!
With flexible financing options, upgrading or repairing your tankless water heater is easier than ever. Enjoy reliable, on-demand hot water today, while managing costs through affordable payment plans, giving you the comfort and peace of mind you deserve.
How Much Does a Tankless Water Heater Cost?
We Service and Install
All Major Brands
We serve the three counties of Tampa Bay from our shop at 1408 W Linebaugh Ave in Tampa.
Tampa, Brandon, Riverview, Carrollwood, Town ’n’ Country, Plant City, Ruskin, Sun City Center, Apollo Beach, Valrico, Lutz, Seffner
St. Petersburg, Clearwater, Largo, Dunedin, Oldsmar, Safety Harbor, Pinellas Park, Seminole, Tarpon Springs, Treasure Island, St. Pete Beach
Wesley Chapel, Land O’ Lakes, New Port Richey, Holiday, Hudson, Trinity, Zephyrhills, Dade City
Whether it is a Navien that quit or a brand new Rheem install on your Tampa home, the diagnosis and estimate are FREE.
Open 24 hours, 7 days a week. You approve the price before any work starts.
Hablamos español. Llámenos o envíenos un texto al (813) 343-2212.