What you can do without a license
Three things are generally legal for homeowners in Florida without involving a licensed plumber. First, replacing a flexible gas connector at a stove or dryer with an exact-spec replacement (correct length, correct fitting, correct material rating). The connector is sold at hardware stores. The work involves shutting off the gas at the appliance valve, swapping the connector, and turning the gas back on. A leak check with soapy water at the joints is required.
Second, replacing a gas water heater drain valve, anode rod, or other parts that do not touch the main gas line. The gas line and burner assembly should not be disturbed.
Third, basic appliance maintenance that does not involve the gas supply line itself: cleaning burners, replacing thermocouples on a gas range, etc. Anything that requires disconnecting the gas line at a fitting other than the appliance shutoff requires a licensed plumber.
What requires a licensed plumber
Any new gas line installation. Running a new line from the gas meter to a new appliance location, extending an existing line, or relocating a gas-fired appliance to a different room. The work requires Florida plumbing license + gas certification + a permit + inspection.
Any repair of a leaking gas line in walls, slabs, attics, or anywhere other than the appliance connection point itself. Gas leak repair is licensed work, full stop.
Water heater swap-outs where the gas line needs to be modified (most replacements). The water heater is in a different location, requires a different gas line size, or has a different valve configuration than the original. All licensed work.
Tankless water heater installations. These almost always require gas line upsizing (tankless heaters draw more gas at peak demand than tank heaters), upgraded venting, and a new gas shutoff. All licensed work + permit + inspection.
Gas range or cooktop relocation. Different room, different wall, different position. New gas line required.
Pool heater installation or relocation. Same rules.
Why this is regulated so strictly
Gas leaks are a fire and explosion risk. A small leak in a closed space can accumulate to an ignitable concentration in hours. Most residential gas explosions in Florida have a single cause: someone did gas work without the certification or experience to do it correctly.
Carbon monoxide is the other major hazard. Gas appliances that are improperly vented or burning incompletely produce CO. The licensed inspection process includes a vent check and a combustion analysis on the appliance.
Insurance carriers also enforce the regulation. A gas-related claim where the underlying work was not permitted will often be denied. Mortgage holders sometimes require gas permit records during property transactions.
The permit and inspection process
A licensed plumber pulls the permit before the work starts. The cost is built into the quote (typically $150 to $400 in Orange or Seminole County). The permit identifies the scope of work and the address.
After the work is done, the plumber schedules an inspection through the issuing authority. The inspector verifies the work was done to code: proper materials, correct pipe sizing, leak tests at appropriate pressure, proper venting, and accessible shutoffs.
Inspections typically happen 1 to 5 business days after the work is complete, depending on the jurisdiction. The plumber handles the scheduling and meets the inspector on-site. Most work passes the first inspection; if something needs correction, the plumber returns to fix it and the inspection re-runs.
What to do if you smell gas
Treat it as an emergency. Get everyone out of the building immediately. Do not turn on or off any electrical switches, light any flames, or use phones inside the building (use a phone from outside).
Call 911 or your gas utility's emergency line from a safe distance. They will dispatch a crew to shut off the main and confirm the leak source. Do not attempt to find the leak yourself.
Once the gas utility has secured the building, call a licensed plumber for the repair. Most utilities will shut off your gas service until you can show proof of repair by a licensed contractor.
FAQs
You can connect a new appliance to an existing gas line if the connection point already has the correct fitting and shutoff valve. You cannot run new gas line, modify the existing line, or move the gas connection to a different location without a licensed plumber. Most installations fall in the gray area; if you're not sure, get the work checked.
A single appliance gas line run (e.g., for a new range or dryer in a new location) runs $450 to $1,200 depending on distance and complexity. Tankless water heater gas line upgrade runs $850 to $1,800. Pool heater gas line runs $1,200 to $3,000 depending on distance from the meter. Quotes include the permit and inspection.
Single-appliance runs take 4 to 8 hours, plus the inspection wait (1 to 5 business days). More complex installations (tankless conversions, pool heaters, kitchen range relocation in a remodel) take 1 to 2 days plus inspection time. Gas service is restored once the inspection passes.
The licensing requirements are similar but the materials and code provisions differ. A licensed plumber doing gas work in Florida is qualified for natural gas; many are also qualified for propane (LP). Always verify the contractor has experience with your specific fuel type before booking the work.
Almost always yes. Florida code requires a permit for any work that modifies the gas line, including direct replacement of a gas water heater. The licensed plumber handles the permit; do not let anyone tell you a permit isn't needed. The exception is a like-for-like swap with the same model in the same location, but even that requires a permit in most Orange and Seminole County jurisdictions.
Bottom line
Most Greater Orlando plumbing problems have a typical cause and a typical fix. The right diagnosis up front saves money on the back end. If anything in this post matches what you are dealing with, a phone call with a licensed local plumber is the fastest path from question to answer. The phone quote is free, and we tell you straight whether your situation needs same-day attention, next-business-day service, or something you can handle yourself with a few minutes of work.
We work all of Greater Orlando across Orange, Seminole, Volusia, Lake, Osceola, and Polk counties. Same-day response for most calls. Around-the-clock dispatch for emergencies. Florida-licensed plumbers, permit-pulled work, firm prices before any work starts. Call (407) 964-8940 to talk to someone now.
Need a plumber for this?
If anything in this post sounds like your situation, give us a call. The phone estimate is at no cost and carries no obligation. (407) 964-8940 connects you with a licensed local plumber in Greater Orlando.