How to Fix a Leaky Faucet — A Licensed Plumber's Complete Guide

Pro Plumbers Tyler Updated June 7, 2026 15 min read Tyler, TX
How to fix a leaky faucet — complete guide covering all 4 faucet types by Pro Plumbers Tyler

A leaky faucet is one of the most common — and most ignored — plumbing problems in American homes. According to the U.S. Environmental Protection Agency (EPA), a single faucet dripping at just one drop per second wastes more than 3,000 gallons of water per year. In Tyler, TX, where water rates average $4.50–$7.00 per 1,000 gallons, that single drip adds $15–$21 to your annual bill — and most households have more than one leaking faucet.

Beyond the water bill, a faucet leaking at the base — even slowly — can saturate your sink cabinet in days. In East Texas's humid climate, that moisture becomes mold within 48–72 hours, turning a $12 washer repair into a $500–$2,000 water damage remediation job.

This guide, written from 45+ years of hands-on plumbing experience serving Tyler, TX and East Texas, covers every major faucet type, every common failure point, every repair step, and every situation where calling a licensed plumber is the smarter choice.

How Much Does a Leaky Faucet Actually Cost You?

Before picking up a wrench, understand what a leaky faucet costs you every single day it drips. The numbers are more significant than most homeowners realize:

Drip Rate Gallons Wasted/Year Est. Annual Cost (Tyler, TX) Equivalent Waste
Slow drip (1 drop/2 sec) ~1,600 gallons $8–$11 ≈ 27 full bathtubs
Moderate drip (1 drop/sec) ~3,000 gallons $15–$21 ≈ 50 full bathtubs
Fast drip (2 drops/sec) ~5,400 gallons $27–$38 ≈ 90 full bathtubs
Steady trickle 10,000+ gallons $50–$70+ ≈ 167+ bathtubs

Source: EPA WaterSense Fix-a-Leak Week. Cost estimates based on Tyler Utilities average billing rates ($4.50–$7.00/1,000 gal).

East Texas Water Damage Alert: A base-leaking faucet (water pooling inside the cabinet under the sink) adds a far greater risk in East Texas than the drip alone suggests. The region's humidity accelerates mold development — a cabinet floor soaked for 72+ hours will need professional remediation. Fixing a $3 washer immediately beats a $500–$2,000 mold remediation bill every time.

What Causes a Faucet to Leak? 7 Root Causes

Every leaky faucet has a specific mechanical failure point. Identifying the cause before disassembling the faucet saves time and unnecessary trips to the hardware store. Here are the seven most common root causes found in Texas homes:

1. Worn Rubber Washer

The most common cause in compression faucets. The rubber washer presses against the valve seat with every use, eventually wearing flat, deforming, or tearing. Symptom: persistent drip from the spout.

2. Damaged O-Ring

O-rings seal the stem in the faucet body. When an O-ring wears or cracks, water leaks around the handle or under the spout — not just the tip. Very common in cartridge faucets after 5+ years of use.

3. Corroded Valve Seat

The valve seat is the metal contact surface between the faucet body and the spout. Sediment from hard water corrodes and pits the seat over time — even a perfect new washer won't seal against a damaged seat.

4. Worn Cartridge

In cartridge faucets, the cartridge controls hot/cold mixing and flow. A worn cartridge causes dripping, temperature control failure, or inability to fully shut off the faucet. Direct cartridge replacement resolves this.

5. Loose Packing Nut

The packing nut compresses sealing material around the stem below the handle. A loose nut causes water to seep around the handle stem during use — often just needs tightening with an adjustable wrench.

6. Failed Ceramic Disc Seals

Ceramic disc faucets rarely leak. When they do, the culprit is almost always the rubber seals on the underside of the disc cylinder — not the ceramic discs themselves. Seal replacement is a simple repair.

7. Hard Water Mineral Buildup

Tyler, TX and East Texas have moderately hard water (150–250 mg/L hardness). Mineral scale builds inside valve bodies, clogs aerators, corrodes valve seats, and accelerates washer degradation — making leaks more frequent than in soft-water areas.

The 4 Types of Faucets — Identify Yours in 30 Seconds

Your repair method, tools, and replacement parts depend entirely on your faucet type. Here's how to identify yours without removing a single screw:

Ball Faucet
  • Single lever handle
  • Handle rotates over a dome-shaped cap
  • Most common in kitchens
  • Common brands: Delta, Price Pfister

Repair difficulty: 3 of 5 — Moderate

Cartridge Faucet
  • Single or double handle
  • Handle moves straight up/down to control flow
  • Common in bathrooms and kitchens
  • Common brands: Moen, Kohler, American Standard

Repair difficulty: 2 of 5 — Easy

Compression Faucet
  • Two separate handles — one hot, one cold
  • Handles screw in to shut off (twist down)
  • Found in older homes (pre-1990s)
  • Simplest mechanism to DIY repair

Repair difficulty: 1 of 5 — Easiest

Ceramic Disc Faucet
  • Single lever with wide cylindrical body
  • Lever moves side-to-side (temp) + up/down (flow)
  • Modern, high-end — most durable type
  • Common brands: Grohe, Hansgrohe, Kohler

Repair difficulty: 3 of 5 — Moderate

Not sure what type you have? Look at the faucet's handle configuration: two handles = compression faucet. Single lever that rotates in a dome cap = ball faucet. Single lever that moves strictly up/down with a cylindrical body = ceramic disc. Single lever on a narrower body = cartridge. When in doubt, remove the decorative cap on top of the handle and look inside — a cartridge has a plastic cylinder, a ball faucet has a ball-shaped component, and a compression faucet has a threaded stem with a washer at the bottom.

Tools and Replacement Parts You'll Need

Gather everything before you turn off the water. Running to the hardware store mid-repair with the shutoff valves closed wastes time and risks forgetting what part you needed. Use this checklist:

Tool / Supply Purpose Faucet Types Approx. Cost
Adjustable wrench Loosen/tighten packing nut, cap, collar All types $8–$20
Phillips + flathead screwdrivers Remove handle screws, pry decorative caps All types $5–$15
Allen wrench (hex key) set Remove set screws on single-handle faucets Ball, Cartridge $6–$12
Needle-nose pliers Remove retaining clips, springs, small parts Ball, Cartridge, Ceramic $8–$15
Channel-lock pliers Grip and loosen large components All types $10–$20
O-ring assortment set Replace worn O-rings on stems and body All types $3–$8
Rubber washer kit Replace seat washers at base of stem Compression, Ball $3–$6
Replacement cartridge (brand-specific) Full cartridge swap Cartridge, Ceramic $10–$40
Ball faucet repair kit Includes ball, springs, seats, O-rings, cam Ball only $8–$20
Plumber's grease (silicone) Lubricate O-rings and rubber components All types $4–$8
Plumber's tape (PTFE/Teflon) Seal threaded supply connections All types $2–$5
White vinegar Dissolve mineral buildup on parts Ceramic, Compression $2–$4
Pro Tip — Always Match Parts Before Buying: Take the old washer, O-ring, or cartridge to the hardware store as a physical reference. Better yet, photograph the faucet brand name (stamped on the collar or body) and model number (on the underside near the supply lines) before removing anything. Moen, Delta, Kohler, and American Standard cartridges are not interchangeable — model-specific parts are critical for a leak-free repair.

Before Any Repair: Turn Off the Water Supply Correctly

Every faucet repair begins with cutting water supply to the faucet. Skipping or rushing this step is the #1 cause of DIY repairs turning into emergency plumber calls.

  1. Locate the shutoff valves — Look under the sink. You'll see two supply lines (one hot, one cold) with oval knob handles or flat handles. Turn both clockwise (righty-tighty) until fully closed.
  2. Open the faucet handle — Turn the faucet fully on. This releases remaining water pressure from the supply line and confirms the shutoff valves are actually closed. Let it run until no more water comes out.
  3. Plug the drain — Place a rubber stopper or rag in the drain opening. Small screws, springs, O-rings, and retaining clips routinely disappear down open drains during repairs.
  4. Place a towel or tray under the work area — Even with shutoffs closed, residual water in the faucet body and supply lines will drain when you disassemble. Protect the cabinet floor from moisture.
  5. Check your work light — Faucet interiors are dark. A headlamp or work light lets you see the difference between a spring seated correctly and one that's about to cause problems.
Warning — Old or Corroded Shutoff Valves: In East Texas homes built before 1990, shutoff valves are frequently corroded or coated in mineral scale. If a valve resists turning, do not force it. Forcing a corroded valve can snap the stem from the supply line, causing an immediate, pressurized water flood that requires main line shutoff. Call Pro Plumbers Tyler at (903) 707-8889 — valve replacement is a quick fix when done before it becomes an emergency.

How to Fix a Ball Faucet (Step-by-Step)

Ball faucets contain the most internal components of any faucet type: a ball, two rubber seats, two springs, O-rings, a cam, and a cam washer. When they leak, it's almost always the springs and seats — but replacing all components in one repair is the right approach, since you're already inside the faucet.

Buy a complete ball faucet repair kit ($8–$20) before you start. Kits include all replaceable components and cost far less than buying parts individually.

Tools: Hex wrench, adjustable wrench, screwdrivers, needle-nose pliers, repair kit

  1. Remove the handle by loosening the set screw with a hex (Allen) wrench — the set screw is usually beneath a small cap on the side of the handle, or under the decorative top. Pull the handle straight up off the stem.
  2. Use adjustable pliers (wrapped in a cloth to protect the finish) to unscrew the cap — the dome-shaped component at the top of the faucet body. Turn counter-clockwise.
  3. Remove the collar (the threaded ring below the cap), then lift out the cam, cam washer, and ball assembly. Note the orientation of the ball — the slot must align with the pin in the faucet body on reassembly.
  4. Use needle-nose pliers to remove the two rubber seats and springs from the inlet holes inside the faucet body. These are the most common failure points. Replace both, even if only one appears worn.
  5. Inspect the ball surface for cracks, pitting, or grooves. A damaged ball will cause leaks no matter how perfect the seats are. Replace it with a new ball from your kit.
  6. Check the O-rings on the outside of the faucet body. Coat all new O-rings with plumber's grease and install them.
  7. Drop each new spring (pointed end facing down into the seat hole), then press a new rubber seat on top of each spring. Use a pen or pencil tip to help seat them firmly.
  8. Insert the new ball, aligning its slot with the faucet body's alignment pin. Place the new cam washer and cam on top (the cam's notch aligns with the faucet body's slot). Thread the cap back on and tighten with pliers — firm but not over-tightened.
  9. Reinstall the collar, handle, and set screw. Replace any decorative caps.
  10. Turn the water supply on slowly. Run the handle through its full temperature and pressure range. Check all connection points for drips.
Pro Tip — Photograph Before You Disassemble: Ball faucets have the most components of any faucet type. Before removing anything, photograph the interior with your phone at each stage of disassembly. This gives you a reference image for correct reassembly orientation — especially for the cam and ball alignment.

How to Fix a Cartridge Faucet (Step-by-Step)

Cartridge faucets are the most common type in modern Tyler, TX homes — found in most bathroom sinks and many kitchen sinks built after 1995. The cartridge is a self-contained plastic cylinder that controls both flow and temperature. When it fails, the entire cartridge is replaced as a unit — there are no individual components to swap out.

Single-Handle vs. Double-Handle Cartridge Faucets

The repair process is identical for both. With double-handle faucets, test which side is leaking by turning each handle while the other is fully off. Repair the leaking side — or replace both cartridges while you have the tools out for the most cost-effective long-term result.

  1. Pry off the decorative cap on the top of the handle with a flathead screwdriver — it may have a small notch on the side. Unscrew the Phillips handle screw beneath it. Tilt the handle back and pull it straight off.
  2. Some cartridge faucets have a retaining nut (a large plastic or metal nut above the cartridge body). Use adjustable pliers to unscrew it counter-clockwise. Some have a U-shaped retaining clip instead — grip it with needle-nose pliers and pull straight up.
  3. Grip the top of the cartridge stem with pliers and pull straight up. Do not twist. If it resists, a cartridge puller tool (~$10 at hardware stores) provides mechanical advantage without damaging the cartridge body.
  4. Take the old cartridge to the hardware store to match the replacement. Faucet cartridges are brand-specific and model-specific — the brand name is stamped on the faucet collar or base. Common brands: Moen 1225/1222, Delta RP46074, Kohler GP30413.
  5. Coat all O-rings on the new cartridge with plumber's grease. This prevents tearing during insertion and ensures a good seal.
  6. Insert the new cartridge with the tab or notch facing toward the front of the sink (toward you). This orientation controls which direction is hot vs. cold — if you mix it up, the temperature will be reversed when you test.
  7. Reinstall the retaining clip or nut. Reinstall the handle, handle screw, and decorative cap.
  8. Turn water supply on slowly and test through the full range of motion — full cold, full hot, and positions in between. Check for drips at the spout and around the base of the faucet.
Moen Lifetime Warranty — Free Cartridge Replacement: Moen offers a lifetime warranty on most faucets and will mail you a free replacement cartridge when you contact their support team. Call 1-800-BUY-MOEN or visit moen.com/support before purchasing a cartridge at retail. This single tip saves most Moen owners $15–$35.

How to Fix a Compression Faucet (Step-by-Step)

Compression faucets are the oldest and mechanically simplest faucet design — two separate handles (hot and cold) that physically screw a rubber washer down against a valve seat to stop water flow. They're most common in East Texas homes built before 1990. The repair is the most straightforward of all four types: replace the rubber washer and O-ring on the leaking handle's stem.

Identify which handle is leaking: Turn off only the hot shutoff valve and check if the drip stops. If it does, the hot side needs repair. Repeat for the cold side. If both sides drip, repair both.

  1. With the water supply off, pry off the decorative index button on top of the handle (marked "H" for hot or "C" for cold) with a flathead screwdriver. Unscrew the handle screw beneath it and remove the handle.
  2. You'll see the packing nut — a large hexagonal nut — below where the handle was. Use an adjustable wrench to unscrew it counter-clockwise and remove it completely.
  3. Pull out the stem by gripping it firmly and twisting counter-clockwise as you lift. The stem will unscrew from the faucet body and come out in one piece.
  4. At the bottom of the stem, you'll see a round rubber washer held in place by a brass washer screw. Remove the screw and the old washer. Match the new washer exactly to the old one — bevel-edge and flat washers are not interchangeable. Seat width matters: a washer even 1mm too large will cramp and leak.
  5. While the stem is removed, slide the old O-ring off the stem body (it sits in a groove around the middle of the stem) and replace it with a new O-ring of matching diameter. Coat the new O-ring lightly in plumber's grease.
  6. Inspect the valve seat inside the faucet body (the flat ring at the bottom of the cavity where the stem sits). Run your fingertip over it — if it feels rough, gritty, or grooved, it's damaged. A damaged seat will cause the new washer to fail within weeks. A plumber can resurface it with a valve seat grinder tool ($15–$25) or replace it.
  7. Apply plumber's grease to the stem threads. Screw the stem back into the faucet body clockwise until hand-tight. Thread the packing nut back on and tighten with the wrench — snug, but do not over-tighten (this crushes the washer).
  8. Reinstall the handle, handle screw, and index button. Turn on the water supply slowly and test. The handle should turn smoothly, and the faucet should stop dripping within a few seconds of closing.

How to Fix a Ceramic Disc Faucet (Step-by-Step)

Ceramic disc faucets use two precision-ground ceramic discs to control flow and temperature — and they are the most durable of all faucet types. The ceramic discs themselves almost never fail under normal use. When a ceramic disc faucet leaks, the cause is almost always the rubber seals on the underside of the disc cylinder, or mineral scale from East Texas hard water blocking the seal recesses.

Critical Reassembly Warning: When turning the water supply back on after a ceramic disc repair, always open the faucet lever to the full-open position first, then turn the supply valves on very slowly. A sudden pressure surge into an empty ceramic disc cartridge can crack the discs, converting a $15 seal replacement into a $40–$150 disc cylinder replacement.
  1. Remove the handle by unscrewing the set screw (located on the back or underside of the handle lever — often a Phillips or 3mm Allen screw). Lift the handle straight up and off.
  2. Unscrew the escutcheon cap (the decorative chrome cover surrounding the cylinder) to reveal the disc cylinder underneath. Some require a Phillips screw; others unscrew by hand.
  3. Unscrew the 2–3 mounting screws holding the disc cylinder to the faucet body. Lift the cylinder straight out — do not twist it.
  4. Turn the cylinder upside down. You'll see 2–3 rubber seals pressed into recessed slots on the underside. Pry each seal out gently with a small flathead screwdriver.
  5. Inspect the seal recesses and the interior of the faucet body for mineral scale deposits (white or yellowish buildup). Soak the cylinder and faucet body openings in white vinegar for 30 minutes to dissolve deposits. Scrub gently with a soft toothbrush. Mineral buildup that stays under new seals will cause them to fail prematurely.
  6. Press new rubber seals firmly into each recess slot. Apply a small amount of plumber's grease to each seal surface.
  7. Reinstall the cylinder, tighten the mounting screws evenly (do not overtighten), and reattach the escutcheon cap and handle.
  8. Open the faucet lever to full-open position. Turn the water supply valves on very slowly — give them a full 10 seconds to pressurize the line. Close the faucet and check for drips.

Faucet Leaking at the Base vs. the Spout — Different Problems, Different Fixes

Most how-to guides treat all faucet leaks as one problem. They're not. Where your faucet leaks is the most important diagnostic clue — and it tells you exactly what's wrong before you touch a single screw:

Drip from the Spout Tip
  • Worn rubber washer (compression)
  • Worn or failed cartridge (cartridge type)
  • Worn springs and seats (ball type)
  • Cracked disc seals (ceramic disc type)

→ Follow your faucet type's step-by-step guide above

Water Around the Base / Handle
  • Worn O-ring on the faucet body
  • Loose packing nut (needs tightening)
  • Failed supply line fitting
  • Cracked faucet body (call a plumber)

→ Replace O-rings, tighten packing nut, or book professional faucet repair in Tyler TX

Base leaks are more urgent than spout drips. Water pooling inside the cabinet reaches the cabinet floor within hours. In East Texas's humidity, that moisture creates mold spores within 48–72 hours. A base leak that persists more than 24 hours after a DIY repair attempt should be inspected immediately by a licensed plumber — our faucet repair service in Tyler, TX covers base leaks, O-ring failures, and cracked faucet bodies. Mold remediation costs far more than the repair that would have prevented it.

Should You Repair or Replace the Faucet?

Not every leaky faucet is worth repairing. Some situations make replacement the smarter financial decision:

Situation Repair Replace
Faucet under 10 years old, first failure Repair
Simple washer or O-ring failure, any age Repair
Faucet 10–15 years old, second repair needed Consider both Consider both
Faucet 15+ years old, multiple failures Replace
Replacement parts discontinued / unavailable Replace
Faucet body visibly cracked or corroded Replace
Cartridge is brand-specific or hard to source, and faucet is over 12 years old Replace

What actually decides it:

If your faucet needs a brand-specific cartridge, is over 12 years old, and has leaked before — full replacement is likely the better 10-year decision. A mid-range Moen or Delta faucet installed by Pro Plumbers Tyler delivers 15–20+ years of reliable service. See faucet repair and replacement in Tyler, TX for what the job involves.

Faucet Still Dripping? We Fix It Same Day.

Pro Plumbers Tyler serves all of Tyler, TX and East Texas with licensed, insured faucet repair and replacement. Every service van is stocked with the most common parts — most repairs are done in a single visit.

Call (903) 707-8889

When to Call a Licensed Plumber for a Leaky Faucet

Faucet repair is genuinely DIY-friendly for most homeowners. But certain situations require a licensed plumber — both for safety and to prevent damage that costs ten times more than a professional service call:

Pro Plumbers Tyler serves Tyler, Whitehouse, Lindale, Bullard, Chandler, Noonday, Gladewater, Kilgore, Van, Troup, and all surrounding East Texas communities with same-day licensed faucet repair and replacement. We carry the most common washers, O-rings, cartridges, and supply lines on every service van. Most repairs are completed in a single 30–60 minute visit.

Frequently Asked Questions About Fixing Leaky Faucets

If the faucet still drips after a new washer, the valve seat is almost certainly pitted or corroded. The valve seat is the metal ring inside the faucet body that the washer presses against to stop flow. Run your fingertip over it — a rough, grooved, or scratchy surface means no washer will seal. A plumber can resurface the seat with a valve seat grinder tool (~$20 at hardware stores) or replace it entirely. East Texas hard water (150–250 mg/L mineral hardness) accelerates valve seat corrosion compared to national averages.

According to the EPA WaterSense program, a faucet dripping at one drop per second wastes more than 3,000 gallons per year. A faster drip (2 drops/second) wastes over 5,400 gallons. A household with three leaky faucets at moderate drip rate loses 9,000+ gallons annually — equivalent to 150 full bathtubs of water. At Tyler Utilities rates, that's $45–$63 per year in wasted water from three faucets alone.

Most simple faucet leaks — worn washers, failed O-rings, or a worn cartridge — are DIY-friendly with basic tools and a $5–$25 repair kit. Call a licensed plumber if: the shutoff valves won't close, the leak continues after two repair attempts, the valve seat is damaged, there is water damage beneath the sink, the faucet is over 15 years old, or you see water staining on the cabinet floor. In those cases, a $65–$175 professional repair prevents $500–$2,000+ in water damage.

A standard faucet repair takes 30–60 minutes for a licensed plumber. If the valve seat needs resurfacing or parts must be special-ordered, it may take 1–2 hours. Pro Plumbers Tyler stocks the most common faucet cartridges (Moen, Delta, Kohler, American Standard), washers, O-rings, and supply lines on every service van — so most Tyler, TX faucet repairs are completed in a single visit on the same day you call.

The valve seat is the machined metal surface inside the faucet body where the washer or cartridge presses to stop water flow. In compression faucets, the rubber washer contacts the valve seat directly thousands of times per year. Over time — accelerated by mineral deposits from hard water — the seat surface becomes pitted, grooved, or corroded. Even a brand-new washer won't seal against a rough seat. A plumber can resurface the seat with a specialized seat grinder or replace it entirely using a seat wrench. This repair is one of the most commonly misdiagnosed faucet problems in DIY guides.

Yes — significantly. Tyler, TX and Smith County have moderately hard water, typically measuring 150–250 mg/L of dissolved calcium and magnesium minerals. This mineral content builds up inside faucet valve bodies, clogs aerators, corrodes valve seats, and degrades rubber washers and O-rings 30–50% faster than in soft-water regions. East Texas homeowners typically need faucet repairs every 3–5 years rather than the 7–10 year average in soft-water areas. A whole-home water softener or filtration system can significantly extend faucet lifespan and reduce repair frequency across all plumbing fixtures.

In compression faucets: a worn rubber washer at the base of the stem is the most common cause — it's flat, deformed, or torn from thousands of compression cycles. In cartridge faucets: a worn cartridge with degraded O-rings or a cracked stem. Both failures are inexpensive to fix ($3–$40 in parts), and both are accelerated by East Texas hard water mineral buildup. Replacing the washer or cartridge early — before the valve seat corrodes — prevents the repair from escalating into a more complex job.

Look for the brand name stamped on the faucet body — check the collar at the base, underneath the spout, or on the supply line manifold. Common brands found in Tyler, TX homes: Moen, Delta, Kohler, American Standard, Price Pfister (Pfister). Once you have the brand, check for a model number on the installation paperwork or on the underside of the faucet, then look up the exact cartridge part number on the manufacturer's website. Moen: call 1-800-BUY-MOEN for a free cartridge under their lifetime warranty. Take the old cartridge to the hardware store as a physical match reference before purchasing a replacement.

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