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Florida Home Buyers Guide

Plumbing Checklist — Before You Close

38-point pre-purchase plumbing guide covering Florida's highest-risk systems: polybutylene, slab leaks, septic, galvanized pipe, and hard water.

Checklist Progress 0 / 38
Check all items before your inspection period expires — see Tab 2 for repair cost estimates on any red flags found.
Critical 1. Pipe Material Identification 0/6
🔴
Polybutylene Found
Serious finding. PB pipe fails without warning. Most FL insurers won't write new policies with PB. Budget $8,000–$15,000 for whole-home repipe — negotiate into purchase price.
🟠
Galvanized Steel Pipe
Common in pre-1980 homes. Will eventually fail via rust and pressure loss. Budget $8,000–$15,000. Low pressure at fixtures = restriction has already started.
🟡
Original CPVC (20+ years old)
FL municipalities use chloramine, which degrades CPVC over time. Repipe may be needed within 5 years. Get an independent plumbing inspection.
✅
PEX-A or Recent Copper
Good finding — verify permits were pulled and passed inspection before closing.
Review 2. Water Heater 0/6
🔴
Age 12+ Years
Budget $1,200–$2,500 for replacement. Request credit at closing. FPL rebate up to $400 if upgrading to heat pump unit.
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Rust at Base or Active Leak
Replace immediately — live water damage risk. Non-negotiable repair request.
🟠
Age 8–12 Years
Factor into negotiation — replacement likely within 3–5 years. FL hard water shortens heater life significantly.
Critical 3. Slab Leak Assessment 0/6
How to check the water meter:
  1. Turn off all water in the house (toilets, icemaker, humidifiers)
  2. Find the meter — typically near the street at the property line
  3. Look at the small triangle dial — if moving with all water off, there's a leak
  4. Photograph the reading, wait 30 min, check again — any change = active leak
🔴
Active Slab Leak Found
Major negotiation item. Detection: $200–$400. Repair: spot repair $1,500–$5,000 / reroute $2,500–$8,000 / full repipe $8,000–$15,000.
🟠
History of Slab Leak Repairs
Request permits and documentation. Multiple past repairs = systemic problem. Budget for full reroute or repipe.
Critical 4. Septic vs. Public Sewer 0/7
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No Pump-Out Records
Require pump-out before closing ($300–$450). Have the condition scoped.
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Drain Field Issues Found
$5,000–$15,000 replacement. Major negotiation item — request credit equal to full repair estimate.
🟠
System Age 25+ Years
Budget for drain field replacement within 5 years. Factor into offer price.
✅
Recent Pump-Out + Clean Inspection
Follow regular maintenance (pump every 3–5 years). No immediate action needed.
Review 5. Water Quality & Pressure 0/7
🟠
Low Pressure Throughout Home
Possible causes: galvanized restriction, failing PRV, or supply issue. PRV replacement: $300–$600. Galvanized restriction may require full repipe.
🟠
Rust or Yellow-Colored Water
Galvanized pipe interior corrosion — repipe likely needed. Do not ignore this finding.
🟡
No Water Softener
South FL hardness averages 250–400 ppm. Budget $800–$2,500 for softener to protect appliances and water heater.
Review 6. Outdoor & Drainage 0/6

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Polybutylene Repipe
Critical
$8,000 – $15,000
Full whole-home repipe to PEX-A. Includes drywall repair and patching. Based on 1,500–2,500 sq ft home.
⚠️ Many FL carriers deny coverage with PB pipe. Negotiate full credit or require seller to repipe before closing.
Timeline: 1–2 days
Galvanized Steel Repipe
Critical
$8,000 – $14,000
Full whole-home supply repipe. Galvanized drain (DWV) is less urgent but can corrode over decades — inspect separately.
💡 Test water color and pressure at fixtures. Rust color + low pressure = repipe needed now.
Timeline: 2–3 days
Slab Leak Repair
Critical
$1,500 – $15,000+
Method determines cost. Electronic detection ($200–$400) required before any repair quote.
  • Spot repair — tunnel under slab$1,500–$5,000
  • Pipe reroute — new line above slab$2,500–$8,000
  • Full reroute / whole-home repipe$8,000–$15,000
💡 Multiple leaks = full reroute is more cost-effective than repeated spot repairs.
Water Heater Replacement
Important
$800 – $2,500
  • Standard electric tank (40–50 gal)$800–$1,500
  • Heat pump water heater upgrade$1,500–$2,500
💡 FPL rebate up to $400 on heat pump upgrades. More energy-efficient long-term.
Timeline: Half day
Septic System Issues
Critical
$300 – $25,000
Cost depends entirely on what's found. Always get a septic inspection before closing.
  • Pump-out only$300–$450
  • Minor repair$500–$2,000
  • Drain field repair$1,500–$5,000
  • Full drain field replacement$5,000–$15,000
  • Full system replacement$8,000–$25,000
Water Softener Installation
Budget For
$800 – $2,500
Whole-home system at main entry. South FL water hardness 250–400 ppm — appliances and water heaters fail 30–50% sooner without treatment.
💡 Often worth requiring as a purchase condition in PB County, Broward, and Miami-Dade.
Pressure Reducing Valve (PRV)
Budget For
$300 – $600
Required if water pressure exceeds 80 psi — common in some FL neighborhoods. High pressure stresses all fixtures and appliances.
💡 Test with a $15 gauge from any hardware store before making an offer.
Timeline: 1–3 hours
Miscellaneous Repairs
Budget For
$100 – $800
Common items found at inspection — include these in your repair request list.
  • Running toilet$150–$300
  • Leaking faucet$100–$250
  • Broken or missing cleanout cap$300–$600
  • Irrigation system repair$200–$800

💼 Negotiation Strategy

Use these cost ranges as the basis for purchase price reduction requests or seller credits at closing. For items over $5,000, a credit is usually preferable to requiring the seller to make repairs — it puts the quality of work in your hands.

Fact 01
Florida Has Among the Highest Copper Pinhole Leak Rates in the US
South Florida utilities use chloramine disinfection, which is significantly more corrosive to copper pipe than free chlorine. Combined with slightly acidic water chemistry, copper pinhole leaks are epidemic. A home with original 1990s copper may look perfect — and fail catastrophically within 1–2 years. Electronic leak detection is the only way to know before you close.
Fact 02
Slab Foundations Hide Everything
Unlike homes on raised foundations, most South Florida homes sit on concrete slabs. Plumbing runs beneath the slab and inside walls — invisible without specialized equipment. Insist on electronic leak detection ($200–$400) before closing on any home over 20 years old. It's the only way to find active leaks before they become your financial problem.
Fact 03
Polybutylene Is Still Hiding in Millions of Florida Homes
PB pipe was installed in Florida homes from 1978 to 1995. After widespread failures and class-action litigation, many homes were only partially repiped — often just under sinks while the pipes inside walls and under the slab were left in place. Look under every sink. Gray or blue flexible plastic = polybutylene = repipe required before homeowners insurance can be written.
Fact 04
Septic Systems Are More Common Than Buyers Assume
Even in suburban South Florida — Broward, Palm Beach, parts of Miami-Dade — many homes are on septic systems. MLS listings frequently misrepresent this. "Connected to sewer" is not a safe assumption. Call the county utility department before closing or check the county Property Appraiser's database. A missed septic system means $8,000–$25,000 in immediate or near-term costs.
Fact 05
Hard Water Is Destroying Appliances Faster Than Almost Anywhere Else
South Florida water hardness averages 250–400 ppm — among the highest in the US. Without a water softener: water heaters last 6–9 years instead of 12+, dishwashers last 4–7 years, and tankless units require annual descaling. If the home doesn't have a whole-home softener, budget $800–$2,500 for installation and use it as a negotiation item.

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Florida Quick Answers

How much does home buyer cost in Florida?

On this page, Florida home buyer estimates run about $300-$25,000, depending on home size, materials, and project scope. Use the calculator above for a Florida-specific estimate.

What affects the price?

Pricing depends on the size and layout of your home, the pipe materials and fixtures you choose, your Florida region and local labor rates, and permit fees. Work that is more complex or harder to access generally costs more.

Can I DIY this, or should I hire a licensed plumber?

In Florida, minor maintenance may be DIY, but anything beyond that generally calls for a licensed plumber, and many jobs require a permit and inspection. When a permit, gas work, or your main water or drain lines are involved, hire a Florida-licensed plumber.

Does homeowners insurance cover it?

It depends on the cause and your specific policy. Sudden, accidental damage is more often covered than gradual wear-and-tear or maintenance - confirm the details with your insurer.

How long does it take?

Timelines depend on scope - many routine jobs take a few hours to a day, while larger projects run longer. Your licensed plumber can confirm after assessing your home.

Plan with confidence

Planning estimate, not a quote — confirm with a licensed Florida plumber. Confidence is qualitative: ranges reflect this page’s Florida assumptions, not a guaranteed price.

Key assumptions

Estimates on this page are Florida-specific and reflect Home Buyer for typical Florida homes.

From this page: On this page, Florida home buyer estimates run about $300-$25,000, depending on home size, materials, and project scope. Use the calculator above for a Florida-specific estimate.

Your actual cost depends on your home's condition, layout, and local labor and permit rates.

Factors that raise or lower cost

From this page: Pricing depends on the size and layout of your home, the pipe materials and fixtures you choose, your Florida region and local labor rates, and permit fees. Work that is more complex or harder to access generally costs more.

Generally raises cost: harder access, older homes, added permits and inspections, premium fixtures or materials, and emergency or after-hours work.

Generally lowers cost: easy access, bundling several items in one visit, standard fixtures, and off-peak scheduling.

Preparation checklist

  • Clear access to the work area and locate your main and fixture shut-off valves.
  • Check with your county or city building department (AHJ) on whether a permit and inspection are required.
  • Note the make, model, or measurements of existing fixtures and pipe materials.
  • Get the scope, total price, warranty, and cleanup terms in writing before work starts.
  • Verify the plumber holds an active Florida license and carries insurance.

Questions to ask your plumber

  • Are you licensed and insured in Florida, and who pulls the permit?
  • Is the quote itemized for parts, labor, permit fees, and disposal?
  • What could change the final price once the work begins?
  • What warranty covers the parts and the labor?
  • How long will the job take, and will my water be shut off?
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Last reviewed: July 1, 2026 (US Eastern)

Reviewed by the FL Plumbing Tools editorial team.

Sources: Florida plumbing cost research and Florida Building Code / local authority-having-jurisdiction (AHJ) permit references.

Florida reference: Estimates and guidance reflect Florida labor rates, permitting, hard water, humidity, and coastal conditions.

Updates: Reviewed periodically and updated as Florida codes, permit fees, and market rates change.