Tankless Water Heaters
Providing first-class Plumbing Services to Central Florida
- Same-Day Appointments
- Upfront, No-Surprise Pricing
- Licensed & Insured Technicians
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- Licensed & Insured
- Background Checked
- Family Owned Since 1990
- 4.9 Star Rating
- Same-Day Service
About This Service
Tankless water heaters heat water on demand — no storage tank, no standby energy loss, and no running out of hot water. Whether you are building new, remodeling, or replacing an aging tank unit, we can help you determine if a tankless system is the right fit for your home.
- Background Checked
- Upfront Pricing
- Satisfaction Guaranteed
Endless Hot Water
Tankless units heat water as it flows through, so you never run out — even during back-to-back showers.
Schedule ServiceEnergy Savings
By eliminating standby heat loss, tankless systems can reduce water heating costs by up to 34 percent.
Schedule ServiceCompact Design
Wall-mounted tankless units free up floor space in your garage, utility closet, or laundry room.
Schedule Service“Frank's AC is hands-down the best HVAC company we've ever worked with. They showed up on time, diagnosed the problem quickly, and had our AC running perfectly within the hour. Highly recommend!”
Sarah M.
St. Cloud
Our Process
Assess Your Needs
We evaluate your household size, hot water demand, and existing plumbing to determine the right tankless system.
Recommend the Right Unit
We help you choose between electric and gas models based on your home's infrastructure and your goals.
Professional Installation
Our licensed plumber installs the unit to manufacturer specs and local code, including all necessary upgrades.
Test and Walk Through
We test the system at full demand and walk you through operation, maintenance, and warranty details.
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Schedule your service today — it only takes a minute.
How Tankless Water Heaters Work
Unlike traditional tank water heaters that keep 40 to 80 gallons of water heated around the clock, tankless systems only heat water when you turn on a faucet or appliance. Cold water flows through a heat exchanger powered by gas or electricity, and hot water is delivered within seconds. When you turn the fixture off, the unit stops heating — which eliminates the standby energy loss that makes tank water heaters less efficient.
This on-demand approach is especially appealing in Central Florida, where the incoming water temperature is relatively warm year-round. That means tankless units do not have to work as hard to reach your desired temperature, which translates to even greater efficiency gains compared to colder climates.
Is Tankless Right for Your Home?
Tankless water heaters are a great fit for many homes, but they are not the best choice for every situation. Homes with very high simultaneous hot water demand may need multiple units or a high-capacity model. Switching from a tank to tankless may also require electrical upgrades or gas line modifications. We evaluate all of these factors during our in-home assessment so you know exactly what is involved before making a decision.
Frequently Asked Questions
Are tankless water heaters worth the higher upfront cost?
For many households, yes. While the initial cost is higher than a traditional tank unit, tankless heaters last 15 to 20 years compared to 8 to 12 for tank models, and the monthly energy savings add up over time. We can help you calculate the long-term value based on your specific usage.
Can a tankless water heater keep up with multiple showers at once?
It depends on the unit's flow rate and the number of fixtures running simultaneously. A properly sized tankless system can handle multiple showers and appliances at the same time. We size every installation based on your peak demand to make sure the unit keeps up.
Do tankless water heaters need maintenance?
Yes. Tankless units need annual descaling to remove mineral buildup from the heat exchanger, especially in Central Florida where the water is hard. Regular maintenance keeps the unit running efficiently and protects your warranty.
Still have questions? We're happy to help.
Related Services
Leak Detection
A hidden leak can cause thousands of dollars in damage before you even know it is there. Our licensed plumbers use advanced detection technology to pinpoint leaks behind walls, under slabs, and in hard-to-reach areas — without tearing up your home.
View ServiceWater Heater Services
Whether your water heater needs a simple repair, annual maintenance, or a full replacement, our licensed plumbers handle it all. We work with traditional tank, tankless, and hybrid heat pump systems — and we will help you choose the right option for your home and budget.
View ServiceWater Heater Installation
A properly sized and installed water heater makes all the difference in performance, efficiency, and lifespan. Our licensed plumbers handle every step — from helping you choose the right unit to completing a code-compliant installation that meets your household's hot water demand.
View ServiceNeed Help? We're Here.
Frank's AC has been Central Florida's trusted comfort experts since 1990. Our family-owned team is standing by to help with any AC, heating, or home comfort need.