FL Kitchen Plumbing Cost Guide
Estimate costs for sink, disposal, dishwasher, pot filler & island rough-in.
Slab Home — Concrete Work Required: Slab homes require concrete cutting for new drain lines. Factor in $800–$1,500 for concrete work + patching on top of plumbing costs. Cure time adds 1–2 days to your project.
FL Permit Requirement: FL requires permits for new rough-in, sink relocation, and dishwasher added to existing service panel. Typical kitchen plumbing permit: $100–$400. Ask your plumber to pull the permit — never skip it.
What Each Service Involves
Sink Replacement (same location) typically includes: P-trap replacement (PVC or ABS), angle stop shutoffs (hot and cold supply valves), faucet installation (labor only if you supply the faucet), drain basket/strainer. 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.
Garbage Disposal — involves both plumbing and electrical. Most jobs include mounting assembly + drain connection to P-trap and wiring to existing outlet. If no outlet exists, an electrician is needed separately (~$150–$350). Popular FL brands: InSinkErator Badger/Evolution (widest FL service network); Moen GX (reliable mid-tier); Waste King (budget, good for rentals). FL Septic Warning: if your home uses septic, disposals significantly increase pump-out frequency (from every 3–5 years to every 1–2 years). Many FL counties discourage disposals on septic.
Dishwasher Hookup — requires hot water supply connection (typically 3/8" compression), drain line routed to garbage disposal or air gap, and FL backflow prevention (FL code requires a high-loop or air gap to prevent dishwasher drain water from siphoning back into clean supply). Permit note: many FL jurisdictions require a permit for a new dishwasher hookup. Miami-Dade and Broward are stricter than rural counties.
Pot Filler Installation — mounts behind the range. Cost varies by wall access: existing water line nearby ($450–$950); new supply line through wall ($900–$1,800, requires opening drywall, running new copper or PEX, patching/painting not included). FL code: pot fillers require a shut-off valve accessible behind the wall or in an adjacent cabinet. Working pressure must not exceed 80 PSI — homes with high pressure (common in South FL) need a pressure regulator.
Kitchen Island Sink — among the most complex jobs. Drain run: island drains must run to the main stack, often the longest run in the house (15–40 ft), sloped at 1/4" per foot. Venting: FL plumbers commonly use Air Admittance Valves (AAV) — code-accepted in most FL jurisdictions but check your county. Slab homes: drain must be cut through concrete, adding $800–$1,500 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.
FL-Specific Considerations
FL Hard Water: High mineral content (especially South FL) stains porcelain and corrodes cheap supply lines. Choose stainless undermount sinks and braided stainless supply lines — not plastic.
Disposal + Septic = Problem: Roughly 1 in 3 FL homes use septic. Disposals on septic dramatically increase pump-out frequency and can cause premature drain field failure. Consult your septic company first.
Humidity + Cabinet Rot: FL humidity accelerates cabinet rot under sinks. When replacing a sink, always upgrade: add new angle-stop shutoffs, replace supply lines, and inspect for rot. A small upfront cost prevents a $2,000+ cabinet replacement later.
Contractor Selection Checklist
- FL Licensed Plumber — verify at myfloridalicense.com before hiring
- Written, itemized quote — not just a phone ballpark
- Permit included in quote — plumber pulls and pays for permit
- Certificate of insurance — general liability + workers comp, current dates
- Lien waiver upon final payment
- Warranty on labor — minimum 1 year in writing
- Timeline in writing — start date, completion estimate, milestones
- Lowest bid ≠ best value — FL contractor fraud prosecuted under FS 489; unlicensed work voids homeowner's insurance
FL Contractor Fraud (FS 489): Florida Statute 489 makes unlicensed contracting a criminal offense. Always verify your plumber's license at myfloridalicense.com. Work by unlicensed contractors voids most homeowner's insurance policies and creates liability at resale.
FL Permit Requirements by Work Type
| Work Type | Permit |
|---|---|
| Like-for-like faucet swap | No Permit |
| Garbage disposal replacement | No Permit Typically |
| New dishwasher hookup | Check Jurisdiction |
| Sink replacement (same location) | No Permit Typically |
| Sink relocation | Permit Required |
| Kitchen island sink rough-in | Permit Required |
| Pot filler installation | Permit Required |
| Full kitchen remodel plumbing | Permit Required |
Kitchen plumbing permits typically cost $100–$400 depending on scope and county. Miami-Dade and Broward run higher.
Project Timeline Guide
- Faucet or Disposal Swap: 2–4 hours, same day
- Sink Replacement (same spot): 3–6 hours
- Sink Relocation (no concrete): 1–2 days
- Sink Relocation (slab cut): 3–5 days incl. cure time
- Island Sink Rough-In: 2–4 days
- Full Kitchen Remodel: 3–7 days
Slab cutting adds concrete cure time (24–48 hrs minimum before tile or flooring). FL inspectors can be booked 3–7 business days out in busy markets.
FL Kitchen ROI
Kitchen remodels recover 60–80% of cost at FL resale. Functional, updated plumbing is one of the top buyer checklist items in FL real estate — especially in competitive markets like Miami, Tampa, and Orlando. Inspectors flag old supply lines, corroded P-traps, and non-permitted work. Bonus: updated kitchen plumbing with permits can lower your homeowner's insurance premium in FL.