Do I Need a Permit for Plumbing Work in Miami-Dade?

As a general rule, straightforward repairs that don’t change your plumbing system — fixing a leak, unclogging a drain, swapping a toilet or faucet for a like-for-like replacement — typically don’t require a permit. Work that modifies the system, adds new fixtures or lines, or involves gas or sewer connections typically does. This is a general guide, not a substitute for checking with your specific municipality’s building department, since requirements can vary by exactly where a property is located within the county.

These categories of work commonly require a permit across most Miami-Dade municipalities, though it’s always worth confirming for your specific address and scope of work:

• ✓Water heater replacement (requirements vary by municipality and fuel type)
• ✓Sewer line repair or replacement
• ✓Repiping a home’s supply lines
• ✓Gas line installation or modification
• ✓Adding a new fixture or relocating existing plumbing

Smaller repairs that don’t alter the system generally fall outside permit requirements:

• ✓Repairing an active leak in an existing line
• ✓Clearing a clogged drain
• ✓Replacing a faucet, toilet, or fixture like-for-like
• ✓Minor fixture repair (flapper, cartridge, wax ring, etc.)

Miami-Dade County contains dozens of separate incorporated cities — Miami, Miami Beach, Coral Gables, Hialeah, and many more — each with its own building department and permitting rules, alongside unincorporated areas governed directly by Miami-Dade County’s building department. That patchwork is exactly why the same type of job can have different permit requirements depending on which side of a city line your property happens to fall on, and why we always confirm requirements for your specific address rather than assume county-wide rules apply everywhere.