FL Angle Stop / Supply Valve
Replacement Cost & Code Guide

An angle stop (also called a fixture shutoff or supply stop) is the small valve under a sink or behind a toilet that turns water off to that one fixture. Florida plumbing code expects an accessible shutoff on fixture supplies so a single fixture can be serviced without killing water to the whole house.

Why They Fail in Florida

The classic failure is a multi-turn stop that has not been touched in years: hard-water scale and corrosion seize the stem, so when you finally need to shut off water for a faucet or toilet repair, the handle either won't turn or, worse, snaps or starts weeping from the packing nut. FL's hard water and humidity accelerate this.

The Upgrade That Matters

Replacing a tired multi-turn stop with a quarter-turn ball stop is the highest-value version of this job. Quarter-turn stops have a smooth ball valve that does not rely on a compressible washer, so they shut off cleanly for decades and are far less likely to seize.

Catch a failing stop before it fails during an emergency.

It Won't Turn (or Barely Turns)

A multi-turn handle that is stiff, gritty, or stuck is seized with scale. Do not force it — forcing a corroded stop is how you turn a $15 valve into a flooded bathroom.

It Drips After You Use It

A stop that weeps from the stem/packing nut after being turned has a failed washer or packing. It may not seal fully either, which means you cannot trust it to actually stop the water.

Green/White Crust or Corrosion

Mineral or corrosion buildup at the valve body or connections signals age and a slow leak. Common on older FL chrome-plated brass stops.

It Doesn't Fully Shut Off

If the fixture still drips with the stop closed, the valve seat is worn. Replace it — a stop that does not stop is worthless.

What sits behind the wall determines which stop and which connection method a plumber uses. Florida housing stock has a particular mix.

CPVC (Very Common in FL)

Cream/tan plastic supply piping is widespread in FL homes built from the 1980s onward. A stop installs on CPVC with a compression connection (with the correct insert/sleeve) or a CPVC-rated push-fit stop. CPVC gets brittle with age and FL heat, so plumbers handle older stubs gently.

Copper

Common in many FL homes and condos. Takes a standard compression stop or a push-fit stop easily; a soldered/sweated stop can be cut off and replaced with a compression or push-fit unit without a torch.

PEX

Newer FL construction. Uses PEX-specific stops or push-fit stops rated for PEX.

Galvanized (Older Homes)

Older FL homes may still have galvanized stubs that are corroded and narrowed. These sometimes need a small repair or transition fitting before a new stop will seal, which adds time and cost.

Quarter-Turn Ball Stop (Recommended)

A 90-degree handle turns a ball valve fully on or off. No rubber washer to compress, so it resists FL scale and seizing and lasts for decades. This is the default upgrade most FL plumbers recommend.

Multi-Turn Stop

The older design with several handle turns and a compression washer. Cheaper, but the washer and packing are exactly what fail in hard FL water. Generally only used for like-for-like matching.

Push-Fit (e.g., SharkBite) Stop

Pushes onto copper, CPVC, or PEX with no tools, solder, or glue. Excellent for quick or DIY jobs and for tight spaces. Slightly more per valve; verify the stop is rated for your pipe material and that the pipe end is cut clean and deburred.

Compression Stop

Tightens a brass ferrule onto the pipe. Reliable on copper and (with the right insert) CPVC; the standard professional connection.

Prep

Identify whether you can isolate just this stop or need the main shutoff. For a single stop with no upstream isolation, you will shut off the home's main, open a low faucet to drain pressure, and have towels ready — FL supply lines hold water that will spill.

The Swap

1. Shut off water (main or upstream). 2. Open the fixture to relieve pressure. 3. Disconnect the supply line from the old stop. 4. Remove the old stop (unscrew compression nut, or cut off a sweated stop). 5. Clean and deburr the stub-out. 6. Install the new quarter-turn stop (compression ferrule or push-fit). 7. Reconnect the supply line, ideally a fresh braided stainless line. 8. Restore water slowly and check the stop body and both connections for leaks.

FL-Specific Cautions

Brittle aged CPVC can crack if over-torqued — snug, not gorilla-tight. Corroded galvanized stubs may crumble and need repair. Always replace the flexible supply line at the same time; old lines are cheap and a frequent leak point.

These are planning estimates for materials plus professional labor in the FL market. The valves themselves are inexpensive; most of the cost is the visit and labor.

Materials

A quarter-turn stop runs roughly $8 to $25 each; push-fit stops a bit more. New braided supply lines are a few dollars each and worth doing at the same time.

Labor

A single stop is the floor of the range. A fixture pair, a whole bathroom, or a whole-home refresh scales up with the number of stops. Because much of the cost is the trip charge and access, replacing several stops in one visit is far more cost-effective per valve.

Add-Ons

Cutting off a soldered stop, repairing a corroded galvanized stub, or working in a tight slab-home cabinet all add time. Use the calculator to combine scope, valve type, and pipe condition.

A single push-fit stop swap on accessible copper or PEX, with the main shut off and a careful leak test, is a reasonable DIY for a confident homeowner. The risk is real, though: FL water damage from a botched connection can dwarf the cost of the valve.

Lean DIY When

Accessible pipe, a push-fit stop matched to your pipe material, you can confidently shut off and restore water, and you will leak-test and re-check the next day.

Call a Pro When

Soldered stops that must be cut, corroded galvanized stubs, brittle old CPVC, no working upstream shutoff, or a whole-home refresh. A licensed FL plumber will also spot the related issues — tired supply lines, a failing main shutoff — while they are there.

Smart Move

If a plumber is already on site for another job, having them replace seized stops is efficient and cheap insurance against a future emergency.

New Stop Drips at the Stub Connection

(1) Compression ferrule under- or over-tightened; (2) push-fit not fully seated or pipe end not deburred; (3) damaged/old pipe surface. Shut off, inspect, and reseat or re-cut.

Drips at the Supply-Line Connection

(1) Loose coupling nut; (2) missing or pinched cone washer; (3) reused old line — replace it with a fresh braided line.

Handle Still Hard to Turn

If you reused an old multi-turn stop, that is the seizing problem returning. Upgrade to quarter-turn.

Stop Won't Fully Close

Debris on the seat from the work, or a defective valve. Flush the line briefly and retest; replace if it still passes water.

Exercise Your Stops

Once or twice a year, gently open and close each stop a quarter turn to keep it from seizing — a 30-second habit that prevents the emergency call in FL's hard water.