Replacing a water heater in Florida: what to ask the plumber
Tank or tankless, gas or electric, permits, drain pans and the questions that separate a complete quote from a bare one.
A water heater usually fails at an inconvenient time, and the plumber you call that day often gets the job. A few minutes of preparation, ideally before the heater dies, keeps the replacement from becoming the most expensive plumbing decision you make in a year.
Know what you have
Look at the label on the tank. It shows the capacity, the fuel type (electric, natural gas or propane), the model and serial number, and often the manufacture date. Tank-style heaters commonly last about ten to fifteen years, depending on water quality and maintenance, and many Florida homes have heaters that are older than that. Signs of failure include rusty hot water, rumbling noises, and moisture at the base. Water pooling around the tank means it is time to act, not to wait.
Tank or tankless
A tank heater stores and keeps hot water ready; a tankless unit heats water as it flows. Tankless units cost more to buy and install, can take up less space, and may need larger gas lines or a bigger electrical circuit. That is where a quote can balloon. If someone proposes tankless, ask for the line items for the gas line, venting, electrical work and any condensate drain, and compare them with a quote for a like-for-like tank.
What a complete quote includes
- The plumber's name, company and Florida licence number.
- The make, model and capacity of the new heater, and the manufacturer's warranty terms.
- New flexible connectors, shut-off valve, a temperature and pressure relief valve with a proper discharge pipe, and an expansion tank if your system calls for one.
- A drain pan with a drain line where leaks could damage the building, which the plumbing code calls for in many installations such as attics and upper floors.
- Haul-away of the old heater.
- Who pulls the permit and what happens at inspection.
Permits
Replacing a water heater is regulated work under the Florida Building Code, and building departments in Florida generally require a permit and an inspection. Ask whether the permit is included in the price and who pulls it. The permit should be in the contractor's name. If a plumber says it is not needed or asks you to pull it yourself, ask why before you agree, because the permit is part of how the installation gets checked.
Fuel and safety
Gas water heaters need proper venting to carry exhaust outdoors, and combustion air. A poorly vented gas heater can release carbon monoxide into the home. Work on gas piping and venting should be done by a licensed contractor; ask who is licensed to do it, and install a carbon monoxide alarm. For an electric heater, the circuit and breaker must match the unit's rating; a licensed electrician may be needed if the circuit has to change.
Temperature
Many manufacturers recommend setting the heater around 120 degrees Fahrenheit to reduce scald risk. Households with young children or older adults should pay attention to that setting. Ask the plumber to set and show you the temperature at the end of the job.
Payment and the 10 percent rule
For residential work, a contractor who collects more than 10 percent of the price up front must apply for permits within 30 days and start within 90 days after permits issue, unless there is just cause (section 489.126). On a one-day job, there is usually no reason to pay much before the work is done. Pay by a traceable method and keep the invoice and permit number with your warranty paperwork. If the heater is under a manufacturer's warranty, ask whether the plumber handles the claim.
General information only, current as of the date above. The information on Florida Plumber Check is not a recommendation or a guarantee of anyone's work. A licence record shows registration status on the date shown, not workmanship, insurance coverage at the time of your job, or suitability for your project. Confirm licence, insurance and permits directly before you hire. Rules and programs change; check the official sources linked in this guide.