Plumbing
Tankless water heaters in Tampa Bay
Ground Up installs tankless water heaters in Tampa Bay homes, converts existing tank setups, and descales tankless units so hard-water scale doesn't choke them. We'll tell you honestly whether tankless fits your house, your gas or electric service, and how your family uses hot water. Call or text 727-732-4357 or request a quote.
Updated
- 30+ years in the building industry
- 24/7 emergency line, nights, weekends, holidays
- 2 Florida state licenses: Plumbing CFC1431937, A/C CAC1817931
- Tampa Bay Plumbing and A/C, one call for both trades
01 — What we do
Tankless work we handle
Tankless can be a good fit, but only when the gas line, venting, or electrical service can support it. We check that first.
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Tank-to-tankless conversions
We remove the old tank, mount the new unit on the wall, and rework the water, gas, venting, or electrical connections it needs.
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Gas line and venting
Gas tankless units often need a larger gas line and their own venting. We size both so the heater gets what it needs when every tap is running.
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Electric tankless assessment
Whole-house electric tankless units draw a lot of power. We look at your panel and tell you if it can carry one before you buy anything.
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Descaling and flushing
We circulate a descaling fluid through the heat exchanger to clear mineral buildup, then clean the inlet filter.
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Service valves
If your unit was installed without isolation valves, we add them so future descaling doesn't mean cutting pipe.
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Error codes and repairs
Ignition, flame, and flow errors often trace back to scale, venting, or gas supply. We track down the cause instead of just clearing the code.
02 — Signs
When tankless makes sense — or needs service
Some of these point toward a new tankless install; others mean your current unit needs attention.
- You run out of hot water halfway through the second shower
- Your old tank is near the end and you want the floor space back
- Your tankless unit shows an error code or shuts off mid-shower
- Hot water swings between hot and cold
- It's been more than a year since the unit was descaled
- Flow at the tap has dropped on hot but not on cold
Local
Hard water and tankless heaters in Florida
Tankless heaters push water through a small heat exchanger, which makes them sensitive to scale. Hard water is common across much of Tampa Bay, and mineral buildup can cut efficiency, trigger error codes, and wear a unit out early. Manufacturers call for periodic descaling; in hard-water homes, once a year is a reasonable habit.
Many Florida homes are all-electric, and that changes the math. A whole-house electric tankless unit can need a lot of amperage, and some panels simply can't carry it. Homes with natural gas or propane usually have an easier path, though the gas line may still need upsizing. We check before recommending anything.
Storm-season power outages are worth thinking about too. Gas tankless units need electricity to run their controls, so they won't make hot water during an outage unless you have backup power. Some gas tank heaters with a standing pilot can keep working. We'll explain the trade-off for your house.
03 — Process
How a tankless install goes
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Fit check
We look at your gas line, venting path, or electrical panel, plus how much hot water you use at once, and tell you if tankless makes sense.
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Plan and quote
You get a clear quote covering the unit and any gas, venting, or electrical work. When the job requires a permit, we pull it.
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Install
We remove the old tank, mount the tankless unit, add service valves, connect everything, and test it at full flow.
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Maintenance walkthrough
We show you the service valves and inlet filter and explain how often to descale based on your water.
Licensed for this work in Florida: Certified Plumbing Contractor CFC1431937 · Certified Air Conditioning Contractor CAC1817931. Financing available. Ask us.
Is a tankless water heater worth it in Florida?
It depends on the house. Tankless gives you continuous hot water, saves floor space, and avoids the standby heat loss of a tank. But the install can be bigger, especially in all-electric homes, and hard water means regular descaling. We'll lay out the trade-offs for your setup rather than push one answer.
How often should a tankless water heater be descaled?
Follow the manufacturer's guidance first. In hard-water areas like much of Tampa Bay, once a year is a common habit, and homes with very hard water may want it more often. A water softener may let you stretch the interval. Skipping descaling is one of the main reasons tankless units fail early.
Why does my tankless water heater go cold in the middle of a shower?
Common causes are scale on the heat exchanger, a clogged inlet filter, a gas line too small for the demand, or a low-flow fixture that doesn't trip the flow sensor. A brief burst of cold right after restarting hot water is normal for tankless. If it's more than that, we'll pin down the cause.
Can a tankless water heater go where my old tank was?
Often it can mount on a wall near the old spot, which opens up the floor. The catch is venting for gas units and wiring for electric units, which have their own requirements. Sometimes a nearby exterior wall is the better location. We'll look at the space and show you the options.
Quote request
Get a quote: Tankless water heaters
Tell us what's going on and how to reach you. A licensed tech (not a call center) gets back to you.
Need help right now? Call 727-732-4357. We answer 24/7.
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Talk to a licensed plumber or A/C tech
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