🔧 Florida DIY vs.
Licensed Plumber Guide

Defines a Certified Plumbing Contractor as one who contracts to install, maintain, repair, alter, or extend all piping, fixtures, appurtenances, and appliances, including storm drainage, solar and fuel gas systems. Authorizes contractors to connect to building sewer, storm sewer, water, fuel, gas, and related systems. This is the gold-standard license for all plumbing work in Florida — valid statewide, supersedes local licensing requirements.

Exempts owner-occupants of single-family residences from contractor licensing requirements for work on their own primary home. The exemption requires that: (1) the property is owned by and serves as the primary single-family residence of the owner; (2) the owner personally performs all work (cannot hire unlicensed persons using the exemption); (3) the work still requires permits and inspections where required by local building code; and (4) the structure may not be offered for sale within 1 year of completion unless the owner can demonstrate the work met code.

Florida Statute 553.84 creates civil liability for sellers who fail to disclose known violations of building code, including work done without required permits. If unpermitted work is discovered after closing, the buyer may bring action for damages. Additionally, FL sellers are required under case law (Johnson v. Davis doctrine) to disclose known material defects — permit violations are considered material defects. Real estate attorneys and FL courts interpret unpermitted plumbing work as a disclosure obligation even if not explicitly noted on the seller's disclosure form.

Unlicensed contracting (including plumbing) is a first-degree misdemeanor in Florida. Unlicensed contractors face fines of $5,000 per occurrence by the Department of Business and Professional Regulation (DBPR). Homeowners who knowingly hire unlicensed contractors may face penalties themselves. Insurance companies routinely deny claims for damage caused by unlicensed work. "Handyman" services performing permitted plumbing tasks without a CFC license are in violation — even if the job seems minor. Always verify license at myfloridalicense.com before paying a contractor.

The Florida Building Code (FBC) requires permits for all plumbing work that involves new installations, extensions, alterations, or modifications to existing plumbing systems. Simple repairs and replacements of existing fixtures at existing rough-in connections are typically exempt. Key rule: if work requires cutting into walls, extending pipe runs, installing new fixtures at new locations, or changing the size of piping, a permit is required. Each FL county or municipality enforces the FBC locally — some jurisdictions have additional local requirements.