That steady drip from your kitchen or bathroom faucet might seem like a minor inconvenience, but it usually signals something going on inside the faucet that will only get worse with time. If you have been wondering what causes dripping faucets, the answer almost always comes down to worn internal components, water chemistry, or pressure problems in your plumbing system. Let's walk through each cause so you know exactly what to look for and when to call for help.
So what actually causes a dripping faucet? The most common causes are worn out washers, damaged O-rings, a corroded valve seat, cartridge problems, and high water pressure. Worn-out internal seals are a common cause of dripping faucets across every faucet type you will find in Florida homes.
Here is how water is supposed to shut off inside your faucet. When you turn the faucet handle to the off position, a sealing surface (a rubber washer, a cartridge, or a ceramic disc) presses tightly against a metal valve seat to create a watertight seal. When any of those sealing surfaces become worn, cracked, or misaligned, water sneaks past and you get that familiar drip from the spout. Many faucets have specific designs that affect their components and repair methods. Ball faucets feature a ball bearing for flexible water flow, while compression and cartridge models work differently.
Florida homes, especially in areas like Sarasota and Orlando, often have minerals in the water supply that accelerate wear on these small parts. That is why leaky faucets are so common here over time. Picture your kitchen sink faucet dripping a few times per second after you shut it off. That is not just annoying. It is wasting more water than most people realize, and it points to one of the causes we are about to cover.
Washers and O-rings are the "soft seals" inside many faucets. They are small rubber or neoprene parts that compress against metal surfaces to stop water flow, and they are usually the first things to wear out during normal use.
In compression faucets, a rubber washer presses against the valve seat every time you close the handle. Compression faucets commonly use rubber washers that can wear out or crack after thousands of cycles. Compression washer faucets use rubber washers to stop water flow, and once a washer gets thin, hardened, or cracked, you will notice a steady drip from the spout. Worn-out washers can cause a faucet to drip even when the handle feels fully closed.
O rings sit around the valve stem or faucet handle. When they dry out or crack, they typically cause a leak at the base of the handle rather than at the spout. Damaged O-rings lead to leaks near the faucet handle, so if you feel moisture under the handle or see a small puddle around the faucet base, that is your clue.
Common methods to fix dripping faucets include replacing worn washers and O-rings. This is an accessible DIY job for many people. Just make sure to match the exact size (using the wrong size washer is a frequent mistake) and apply plumber's grease for a good seal. You can inspect and replace worn-out washers or O-rings with basic tools like a flathead screwdriver and an adjustable wrench.
If you replace washers and O-rings on a faucet in your Tampa or Orlando home and you still have a leaking faucet, the problem may be deeper inside the valve body or cartridge assembly.
The valve seat is the metal surface inside the faucet assembly that connects the faucet to the spout and gives the washer or cartridge a firm place to seal against. Think of it as the landing pad for all those soft seals we just discussed.
Over time, minerals and sediment in your water supply slowly eat away at this metal surface. A corroded valve seat cannot seal tightly, which shows up as a persistent drip from the spout even after you replace the soft seals. Corroded valve seats can prevent a tight seal, causing drips that frustrate homeowners who thought a new washer would fix everything. Cleaning mineral buildup can prevent faucet leaks, and you should clean the valve seat to prevent leaks from corrosion as part of any repair.
In coastal and hard-water pockets of Florida, corrosion on a valve seat can appear faster, especially in older faucets made of brass that have never been serviced. Salt air near the coast accelerates the problem even further.
Diagnosing a worn valve seat requires removing the valve stem or cartridge and inspecting the metal for grooves, pitting, or rough edges. Typical fixes include gently resurfacing a slightly damaged seat with a specialized tool or fully replacing the seat if it is badly corroded. These repairs often call for a licensed plumber with the right tools and experience.
Call Cool Today if you see rusty flakes in the aerator, have a long-running faucet drip after washer changes, or notice leaks around the faucet body where it meets the sink.
Most modern kitchen and bathroom sink faucets in Florida homes are cartridge faucets. These faucets use a cylindrical cartridge to control water flow and mix hot and cold water in a single motion. Cartridge faucets are often easier to repair than other types because the cartridge is a self-contained unit.
A faulty cartridge can lead to persistent faucet dripping in single-handle faucets. You might also notice difficulty getting a steady temperature or water leaking from around the faucet handle area. A damaged cartridge often has hardened internal seals, cracks in the plastic or brass body, or mineral deposits that keep the valve from closing fully. Disc faucets utilize ceramic discs for precise water control, and while they are very durable, a cracked disc means the whole cartridge needs to go.
Many brands use specific models, so you often need the old cartridge as a sample or the faucet's exact model number for correct replacement parts. Universal cartridges exist but do not fit every faucet type.
For a basic DIY swap: shut off the water supply before starting repairs, remove the faucet handle to access internal components, pull the old cartridge, inspect it, and install a new matching part. Then reassemble the faucet and turn the water supply back on.
If the cartridge is stuck, the packing nut is corroded, or you are not sure which part fits your particular faucet brand, contact Cool Today for plumbing repair rather than risk damaging the faucet assembly further.
Not all faucet dripping problems come from worn parts. Sometimes high water pressure in your home's plumbing system is the underlying issue that keeps creating new leaks. Excessive water pressure can cause faucets to drip, and high water pressure can strain plumbing fixtures throughout your home.
Typical signs include a faucet drip that gets worse at night (when less water is flowing through the neighborhood), water that sprays too hard from the spout, or multiple fixtures developing leaks around the same time. High water pressure can cause faucets to drip intermittently, which confuses homeowners who see the drip come and go. Pressure over roughly 80 psi is considered excessive under Florida's residential building code, and a pressure regulator is required if your static pressure exceeds that threshold.
Some Florida neighborhoods have fluctuating municipal pressure that creates water pressure issues and water pressure problems for homeowners. Installing a pressure regulator helps control water flow by keeping incoming pressure at a safe, consistent level. Homeowners can buy an inexpensive gauge at a hardware store to test a hose bib, but adjusting or installing a PRV is usually best left to a licensed plumber.
Here is the key connection: high water pressure accelerates wear on washers, O-rings, and cartridges. That means repeated faucet repairs will not last unless the pressure issue is solved. If you are allowing water to push through your plumbing system at 100 psi, a washer that might last seven years at 60 psi could fail in two or three.
Faucets in busy kitchens and bathrooms around Sarasota, Tampa, and Orlando tend to reach the end of their useful life after 10 to 15 years of daily use. Regular maintenance can extend faucet lifespan beyond 10 years, but eventually critical components simply wear out.
Older faucets develop multiple small issues at once. You might be dealing with hairline cracks in the valve body, worn threads, corroded valve seats, and loose parts that cause inconsistent leaks. Newer faucets are built with better materials, but they are not immune to Florida's warm, humid climate and sometimes mineral-rich water quality. These conditions shorten a faucet's life by encouraging corrosion, mineral buildup, and mold growth in moist sink cabinets.
Annual plumbing checkups help identify early signs of wear before a slow drip turns into a steady drip or even a broken pipe situation. If you are calling for repeated leaking faucet repairs on the same fixture, a complete replacement with a modern, water-efficient model often makes more sense. During a faucet replacement, a Cool Today technician can also inspect shutoff valves, supply lines, and the surrounding cabinet for early water damage and water stains.
Some dripping faucet issues are safe weekend projects. Others are better handled by trained plumbers to avoid broken parts or hidden water damage.
Red flags that call for a professional plumber:
Loose or worn parts can lead to inconsistent faucet leaks that are hard to diagnose without experience. Cool Today offers same-day plumbing service across central and southwest Florida for exactly those situations.
Cool Today has been providing plumbing, HVAC, and electrical services across Florida since 1963, serving homeowners in Sarasota, Tampa, Orlando, and nearby communities.
A typical faucet service call works like this: our technician inspects the faucet, diagnoses whether the issue is a worn washer, failed O-ring, damaged cartridge, corroded valve seat, or high water pressure, and then gives you a clear explanation of your repair or replacement options. We carry common replacement parts and the right tools on every truck, which means many leaky faucets get fixed in a single visit.
Beyond the immediate fix, our maintenance plans cover whole-home plumbing system checks, including silent leaks elsewhere and coordination with HVAC and electrical work when needed. Waste no more water and stop watching your utility bills climb. If you have a persistent faucet drip or a leaking faucet that won't quit, schedule same-day service and let our team stop the drip for good.
Here are answers to common questions that go beyond what we covered above.
Yes. Even a slow drip can waste several hundred gallons of water per year, and a faster drip pushes that number into the thousands. The EPA estimates that a faucet dripping once per second wastes over 3,000 gallons annually. Compare a recent bill with one from the same month last year to spot unexplained increases that might point to hidden leaks.
Changes in system pressure as other fixtures open and close can stress a marginal seal inside a faucet. Leaks may stop temporarily when other fixtures are in use because the overall pressure in the pipes drops. This pattern often hints at a combination of worn faucet parts and overall pressure fluctuations that a plumber should evaluate.
While water may still flow from the faucet, ongoing moisture under the sink can quickly damage cabinet wood, compromise structural integrity, foster mold growth, and attract pests in Florida's humid environment. Place a temporary tray to catch drips, but schedule professional service soon rather than ignoring the problem.
White or chalky deposits on the aerator or around the faucet base indicate mineral buildup from hard water. Green, brown, or flaky metal on the valve seat or fittings points toward corrosion. Both conditions are common in Florida and often appear together, which is why a thorough cleaning and inspection is part of most faucet repairs.
Consider age and condition rather than replacing everything by default. However, if all faucets were installed around the same time, multiple failures in quick succession are likely. Have a Cool Today plumber inspect the other fixtures during a service visit. We will give you honest advice on which ones are worth a repair and which are better candidates for proactive replacement.
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