🔧 FL Kitchen Plumbing Cost Guide

A standard sink replacement at the same location typically includes:

• P-trap replacement — PVC or ABS trap under the sink
• Angle stop shutoffs — hot and cold supply valves
• Faucet installation — labor only if you supply the faucet
• Drain basket / strainer — standard kitchen basket strainer included

Not typically included: countertop cutout, tile repair, cabinetry modification, or garbage disposal.

FL tip: Stainless undermount sinks are strongly recommended over porcelain or cast iron due to FL's hard water — porcelain stains are permanent in high-mineral areas like Palm Beach County.

Disposal installation involves both plumbing and electrical. Most jobs include:

• Mounting assembly + drain connection to P-trap
• Wiring to existing outlet under sink (if present)
• If no outlet exists: an electrician is needed separately (~$150–$350)

Popular FL brands:

• InSinkErator Badger / Evolution — most common, widest service network in FL
• Moen GX — reliable mid-tier with good FL warranty support
• Waste King — budget-friendly, good for rental properties

⚠️ FL Septic Warning: If your home uses a septic system, garbage disposals significantly increase pump-out frequency (from every 3–5 years to every 1–2 years). Many FL counties discourage disposals on septic.

A new dishwasher hookup requires:

• Hot water supply connection (typically 3/8" compression fitting)
• Drain line routed to garbage disposal or air gap
• FL backflow prevention: FL plumbing code requires a high-loop or air gap to prevent dishwasher drain water from siphoning back into clean supply
• If no dedicated circuit exists — electrician required separately

Permit note: Many FL jurisdictions require a permit for a new dishwasher hookup (adding to existing service). Check your local building department — Miami-Dade and Broward are stricter than rural counties.

Pot fillers mount behind the range and fold out over the stove. Cost varies significantly based on wall access:

• Existing water line nearby ($450–$950): plumber ties into existing cold supply, runs line inside wall to mount point
• New supply line through wall ($900–$1,800): requires opening drywall, running new copper or PEX through wall cavity, patching and painting not included

FL code: Pot fillers require a shut-off valve accessible behind the wall or in an adjacent cabinet per FL plumbing code. Working pressure must not exceed 80 PSI — homes with high pressure (common in South FL) need a pressure regulator.

Island sinks are among the most complex kitchen plumbing jobs:

• Drain run: Island drains must run to the main stack — often the longest run in the house (15–40 ft), sloped at ¼" per foot
• Venting: Standard vent through roof is ideal but hard on islands. FL plumbers commonly use Air Admittance Valves (AAV) — these are code-accepted in most FL jurisdictions but check your county
• Slab homes: Drain must be cut through concrete — adds $800–$1,500 to base cost plus 1–2 days cure time
• Pier-and-beam: Access from crawlspace keeps costs lower ($1,200–$3,000)

Always get: A licensed FL plumber who will pull the permit. Island rough-in without a permit creates problems at resale.