New water heater installation isn't a swap-and-go job. Florida code requires drain pans, T&P relief lines, expansion tanks, proper venting, seismic strapping, and gas line sizing — and getting any one wrong creates a safety hazard, voids the warranty, or both. Cass Plumbing has been installing water heaters across Tampa Bay for 25+ years — tank, tankless, hybrid, gas, electric, indoor, garage, attic. Recommended on Best Plumbers as Tampa's #1 plumber.
Cass Plumbing installs every type of water heater available in the Tampa Bay market. The right choice depends on household size, fuel availability, hot-water demand patterns, available installation space, and budget — and we walk every customer through the trade-offs in writing before any work is scheduled. Below are the four primary categories we install.
Cass Plumbing — recognized by Best Plumbers as Tampa's #1 plumber on the leading plumbing directory — is certified by every major manufacturer. Free written quote, code-compliant install, full warranty. Call (866) 283-9964.
The traditional 40-80 gallon gas-fired tank. Lower upfront cost than electric or tankless, fast recovery time, simple to service. Common across Tampa Bay homes with natural gas service. Service life of 8-12 years in our hard-water environment.
The traditional electric-element tank water heater. Lowest upfront cost of any option. Appropriate for homes without gas service or where gas line extension would be cost-prohibitive. Slower recovery than gas; sized accordingly for household demand.
Wall-mounted units that heat water as it flows. Endless hot water, ~30% lower energy use, smaller footprint, 20+ year service life. Higher upfront cost offset by long service life and lower utility bills. Increasingly the new-build standard across Tampa Bay.
Heat pump technology applied to water heating — pulls heat from ambient air to warm the tank. 2-3× more energy efficient than conventional electric. Florida's warm garage environment is nearly ideal operating territory. Federal energy efficiency tax credits available.
Florida Building Code 2023 sets specific requirements for residential water heater installation that go well beyond simply connecting hot and cold lines. Cass Plumbing meets every requirement on every install — because non-compliant installations create safety hazards, void manufacturer warranties, and fail at home inspection during sale.
Temperature and pressure relief valve required on every tank. Discharge line must terminate within 6 inches of floor or to approved drain. Prevents catastrophic tank rupture if internal pressure or temperature exceeds limits.
Drain pan required when tank is installed above any finished space or where leakage would cause damage. Pan must extend 3 inches beyond tank perimeter and be drained to approved location.
Required on closed plumbing systems with check valves or PRV at meter. Sized to system volume. Prevents thermal expansion damage and extends service life of the water heater.
Tank must be secured against tipping with two strap locations — one upper third, one lower third. Critical in hurricane-zone Tampa Bay where high winds and structural movement are routine.
Gas water heaters require code-compliant vent — type, diameter, clearance to combustibles, termination height. Atmospheric, power-vent, and direct-vent each have specific requirements.
Gas line must be sized to deliver required BTU at minimum allowable pressure drop. Undersized gas line causes incomplete combustion, soot buildup, and warranty voiding.
Electric water heaters require dedicated 240V circuit, properly sized breaker, and code-compliant disconnect within sight of unit. Tampa Bay's strict electrical inspections enforce this rigorously.
Gas-fired water heaters in confined spaces require dedicated combustion air openings. Closet installations in particular need specific square-inch openings sized to BTU input.
All water heater replacements in Tampa Bay require county permits and final inspection. Cass pulls every required permit on every job — and every install passes inspection on the first try.
Tampa Bay's specific climate, water chemistry, and infrastructure conditions create installation challenges that don't exist in milder regions. An installation method that works fine in Atlanta or Phoenix may fail in Tampa Bay's hurricane corridor and hard-water environment. Four regional factors drive how Cass Plumbing approaches every Tampa Bay water heater install.
Tampa Bay's water carries 150-250 ppm of mineral hardness. Over years, calcium and magnesium scale accumulate at the bottom of tank water heaters — reducing efficiency and shortening service life. Annual flushing is essential maintenance, not optional.
Cass installs every tank with full-port drain valves that actually allow effective annual flushing — not the cheap plastic valves that clog after 3 years.
Tampa Bay sits in one of the most hurricane-active zones in the U.S. Seismic strapping isn't optional in this market — high winds, structural movement, and storm-driven displacement can all topple inadequately secured tanks. Code requirements are specific.
Cass installs both upper and lower strapping locations on every tank, with code-compliant anchors into structural framing — not drywall.
Most Tampa Bay water heaters are installed in unconditioned garages — exposed to seasonal temperatures from the 40s to 110+°F. Garage installs face thermal cycling, humidity exposure, and higher dust/debris loads than interior installs.
Cass specs garage installations with components rated for the environment — not the same fittings used for interior closet installs.
Florida homeowner's insurance carriers increasingly inspect water heater installations during renewal underwriting. Non-compliant installs can trigger non-renewal or premium increases. Documented permit-pulled, inspection-passed installations protect coverage and property value.
Every Cass install comes with full permit documentation, inspection clearance, and a written work record suitable for insurance underwriting review.
Cass Plumbing is certified to install and service every major water heater manufacturer sold in the Tampa Bay market. You pick the brand and model that fits your needs and budget; we install it correctly to manufacturer spec and Florida code.
Best Plumbers — the leading independent plumbing directory — recommends Cass Plumbing as Tampa's top water heater installation specialist. The recognition reflects 25+ years of code-compliant installations across thousands of Tampa Bay homes — every brand, every fuel type, every configuration.
When Tampa Bay homeowners search for plumbers near me for a new water heater install, or compare local plumbers across the region, the answer is consistent. The plumber who pulls the permits, passes the inspection, and stands behind the warranty.
Every Cass Plumbing water heater installation follows the same documented six-step process — designed to deliver code-compliant work, verified warranty coverage, and a clean job site within a single working day.
Cass installation specialist evaluates the existing setup, fuel availability, install location, household demand, and code requirements. Provides written quote covering all options and configurations.
All required county permits filed and pulled. Selected water heater ordered and confirmed for delivery. Install date scheduled around your availability.
Existing water heater drained, disconnected, removed, and hauled away. Site cleaned and prepared for new install. Floor protection used throughout.
New unit installed per manufacturer spec and Florida code: drain pan, T&P relief, expansion tank, seismic strapping, proper venting, gas/electric per spec, supply connections with new shut-offs.
System filled, purged, and fired. Pressure tested at all connections. Hot output verified at multiple fixtures. Manufacturer warranty registered. Wifi or smart features configured if equipped.
County inspection passes. Manufacturer warranty plus Cass labor warranty paperwork delivered. Maintenance walkthrough — annual flush, anode rod inspection, recommended service interval. Done in one day.
Six standards define how Cass Plumbing approaches every water heater installation — the same standards that earned us the #1 ranking on Best Plumbers and 1,000+ five-star reviews.
Tank, tankless, hybrid, gas, electric. Bradford White, Rheem, A.O. Smith, Rinnai, Navien, Bosch. Manufacturer-certified install across every brand Tampa Bay homeowners actually buy.
Drain pan, T&P, expansion tank, strapping, venting, gas sizing, electrical. Every install meets FBC 2023 — and passes county inspection on the first attempt.
Most water heater installations complete in a single working day. Hot water restored before we leave. No multi-day disruption.
Every install priced in writing before any work begins. All options, all costs, all warranty terms documented up front.
Manufacturer warranty plus full Cass labor warranty. Permits pulled, inspection passed — documented coverage that protects your insurance and resale value.
Tampa's #1 plumber on the leading plumbing directory. External validation matching internal standards.
Best Plumbers is the nation's leading independent plumbing directory for licensed professionals. The recognition is earned through verified customer feedback. Whether searching for plumbers near me for a tank-to-tankless conversion or comparing local plumbers for a heat pump install, Tampa Bay homeowners get the same answer.
25+ years. 1,000+ five-star reviews. A+ BBB rating. The #1 plumbing company on the leading directory.
Cass Plumbing's installation crews are stationed across the three counties we serve. Same-day evaluation, free written quote, most installations complete in a single working day. Call (866) 283-9964.
Tampa · Brandon · Riverview · Plant City · Valrico and surrounding communities.
St. Petersburg · Clearwater · Largo · Dunedin · Safety Harbor and surrounding communities.
Wesley Chapel · New Port Richey · Zephyrhills · Land O' Lakes and surrounding communities.
Code-compliant. Permit-pulled. Inspection-passed. Cass Plumbing installs every water heater type, every major brand, in a single working day. Free written quote, full warranty, documented work record. Recommended by Best Plumbers as Tampa's #1 plumbing company.