Electric · Tank

Electric Tank Water Heater Replacement in Clearwater, Largo and St. Petersburg

Most homes in Pinellas County run on an electric tank water heater. When one fails, you need a new unit connected properly, not just set in place: shutoff valve, expansion tank, relief-valve discharge line, and a pan where the location needs one.

Updated July 2026 · Licensed CFC1432506

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What We Do

More than swapping the tank

An old heater usually comes out with old connections attached: a stiff valve, corroded nipples, no expansion tank, a relief line that goes nowhere. We replace the unit and the parts around it that decide whether the next heater lasts.

Space is often the hard part. Tampa Bay closets were built around the heater that was there in the 1990s. We have fitted new units into narrow closets, onto raised platforms and into utility rooms shared with filtration equipment.

  • Remove and dispose of the old tank
  • New ball valve on the cold inlet
  • Thermal expansion tank on the cold side
  • Flexible connectors sized to the heater
  • T&P relief-valve discharge line
  • Drain pan where the heater sits over a finished floor
Expansion tank and T&P discharge line on a new electric tank water heater in Largo, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Expansion tank and T&P discharge line on a new electric tank water heater in Largo, Florida
The Parts That Matter

Expansion tank, shutoff and relief line

Heating water makes it expand. In a closed system — behind a check valve or backflow preventer — that extra volume has nowhere to go, and pressure climbs every time the heater runs. A thermal expansion tank on the cold inlet gives it somewhere to go. You can see one on almost every job on this page.

The temperature-and-pressure relief valve is the heater's last line of defence. Its discharge line has to be piped to a safe place, not left short or capped. And a ball valve on the cold inlet lets you shut the heater off without shutting the house off.

Ball valve, corrugated flex connectors and expansion tank on top of an electric water heater in Largo, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Ball valve, corrugated flex connectors and expansion tank on top of an electric water heater in Largo, Florida
Thermal expansion tank mounted on the cold inlet of an electric tank water heater in Clearwater, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Thermal expansion tank mounted on the cold inlet of an electric tank water heater in Clearwater, Florida
Recent Work

Jobs we have done — by city

Largo, FL

Tank heater in a drain pan with a new expansion tank

A new electric tank heater set in a drain pan, with a ball valve and flexible connectors on top, a thermal expansion tank on the cold inlet and a T&P discharge line. The label on this unit reads A.O. Smith.

Electric tank water heater in a drain pan with thermal expansion tank and shutoff valve in Largo, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Electric tank water heater in a drain pan with thermal expansion tank and shutoff valve in Largo, Florida
A.O. Smith electric tank water heater with expansion tank in a drain pan in Largo, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
A.O. Smith electric tank water heater with expansion tank in a drain pan in Largo, Florida
Clearwater, FL

New heater in a narrow closet

The closet left very little room around the tank. The new heater went in with its expansion tank mounted on the cold inlet above it, so everything stays reachable for service.

Electric tank water heater with expansion tank fitted into a narrow closet in Clearwater, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Electric tank water heater with expansion tank fitted into a narrow closet in Clearwater, Florida
St. Petersburg, FL

Utility-room replacement on CPVC piping

Electric tank heater replaced in a utility room, connected to the existing CPVC piping, with a thermal expansion tank added.

Electric tank water heater with expansion tank in a utility room in St. Petersburg, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Electric tank water heater with expansion tank in a utility room in St. Petersburg, Florida
Electric tank water heater with thermal expansion tank and CPVC piping in St. Petersburg, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Electric tank water heater with thermal expansion tank and CPVC piping in St. Petersburg, Florida
St. Pete Beach, FL

Raised platform with PEX supply lines

A heater set on a raised platform in a utility closet, piped in PEX, with an expansion tank on the cold side.

Electric tank water heater on a raised platform with expansion tank and PEX piping in St. Pete Beach, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Electric tank water heater on a raised platform with expansion tank and PEX piping in St. Pete Beach, Florida
Electric tank water heater with expansion tank and PEX supply lines in a utility closet in St. Pete Beach, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Electric tank water heater with expansion tank and PEX supply lines in a utility closet in St. Pete Beach, Florida
Wesley Chapel, FL

Block-wall utility room

Electric tank heater with a thermal expansion tank and colour-coded flexible connectors in a block-wall utility room.

Electric tank water heater with thermal expansion tank and red and blue flexible connectors in Wesley Chapel, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Electric tank water heater with thermal expansion tank and red and blue flexible connectors in Wesley Chapel, Florida
Venice, FL

Heater with a circulator pump on the hot outlet

An electric tank heater set in a drain pan, with a circulator pump fitted on the hot outlet and braided connectors.

Electric tank water heater set in a drain pan with a circulator pump on the hot outlet in Venice, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Electric tank water heater set in a drain pan with a circulator pump on the hot outlet in Venice, Florida
How It Works

How the job runs

01 Read the old unit

Capacity, voltage and what the connections look like tell us what the replacement needs.

02 Drain and remove

Power off, water off, tank drained and taken away.

03 Set and connect

New valve, connectors, expansion tank and relief line, in a pan where the floor needs protecting.

04 Fill before power

The tank is filled and purged of air before the elements are energised — a dry element burns out in seconds.

Photos

More electric tank installs

Ball valve and corrugated flex connector at the cold inlet of an electric water heater in Largo, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Ball valve and corrugated flex connector at the cold inlet of an electric water heater in Largo, Florida
Flexible supply connectors and expansion tank tee on top of a new electric water heater in Wesley Chapel, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Flexible supply connectors and expansion tank tee on top of a new electric water heater in Wesley Chapel, Florida
Electric tank water heater with expansion tank and PEX lines beside a window in St. Pete Beach, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Electric tank water heater with expansion tank and PEX lines beside a window in St. Pete Beach, Florida
Top of an electric tank water heater with circulator pump and braided connectors in Venice, Florida by PRO PLUMBERS FL, LLC (licence CFC1432506)
Top of an electric tank water heater with circulator pump and braided connectors in Venice, Florida
FAQ

Common Questions

My electric water heater stopped making hot water. Does it need replacing?

Not always. A tripped breaker, a failed thermostat or a burned-out element can be repaired. A tank that leaks from the body cannot. We check which one it is before talking about a new heater.

Why do you add an expansion tank when the old heater did not have one?

Because many homes are now closed systems, behind a check valve or backflow preventer. Without somewhere for heated water to expand, pressure rises on every heating cycle and wears the heater, the relief valve and the fixtures.

Can you install the new heater in the same small closet?

Usually. Several jobs on this page were tight closets or raised platforms. If the new unit is larger than the old one, we measure first and tell you before the old one comes out.

Do I need a drain pan?

Where the heater sits over a finished floor or in a living area, a pan with a proper drain limits the damage from a leak. We fit one where the location calls for it.

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Warranty, permits & who does the work

Workmanship warranty

Workmanship warranty: 5 years on new construction, 1 year on repairs. Equipment carries the manufacturer's warranty.

Who does the work

Pro Plumbers FL is a family-run company. The licence CFC1432506 is held by Liubov Ivanova; Viktor Zarubitskii — in the plumbing trade since 1998 — plans the job, makes the technical decisions and works on site. Our own plumbers do the plumbing. Work outside plumbing, such as concrete cutting, we either do ourselves or bring in a contractor — either way it is written into your quote.

Electric Heater Failing?

Send a photo of the heater label and the connections on top — we will tell you what the job involves.

Licensed CFC1432506 · Insured · Clearwater, FL + 50 miles

Call 727-470-7126