๐Ÿ”ง Cartridge ยท Ball ยท Ceramic Disc ยท Compression

Faucet Repair in Larkspur, CA โ€” Drip Stopped, Pressure Restored

Low water flow at a kitchen or bathroom faucet is almost always a clogged aerator or a partially failed cartridge โ€” not low supply pressure. Stiff handles, dripping spouts, and leaks under the sink each trace to specific internal components. Our techs in Larkspur know faucet valve anatomy across all the major brands and carry the parts to fix them.

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All Faucet Brands & Types Cartridge & Ceramic Disc Specialists Kitchen, Bath & Outdoor Fixtures Stocked Parts On-Truck
Licensed Faucet Repair service in Larkspur, CA - Masters Plumbing Service

Why Larkspur Homeowners Call Masters Plumbing Service for Faucet Work

Faucet repair looks simple until the wrong cartridge is installed, a seat-and-spring assembly is put in backwards, or a corroded packing nut strips during removal. Our techs know the specific disassembly sequence for the faucets they work on in Larkspur, CA.

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Valve-Type Specific Expertise

Ceramic disc faucets from brands like Moen's newer series, American Standard, and European brands use a pair of ceramic discs that rarely fail but can crack from thermal shock (sudden cold water on a hot disc). Our techs carry common disc cartridge replacements for major brands.

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Brand Knowledge Across Major Lines

We identify the brand and model from the fixture, source the correct OEM or high-quality aftermarket cartridge, and install it correctly. Using the wrong cartridge on a pressure-balance shower valve doesn't just drip โ€” it can cause scalding or cold-water bypass.

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Shower & Tub Valve Specialists

Shower valves โ€” particularly pressure-balance and thermostatic mixing valves โ€” are more complex than a kitchen sink faucet and have safety implications if repaired incorrectly. We carry cartridges for the major pressure-balance valve brands common in Larkspur, CA homes and understand the anti-scald setpoint calibration that should be verified after any shower valve cartridge replacement.

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Under-Sink Leak Diagnosis

Leaving a slow under-sink leak unaddressed damages the cabinet interior and subfloor. We identify the source, quote the repair, and execute it same visit in most cases.

Every Faucet Repair We Handle in Larkspur, CA

Most faucet repairs complete in a single visit with parts on the truck.

Kitchen

Kitchen Faucet Repair & Replacement

Kitchen faucet issues typically present as: a dripping spout (worn cartridge or ball assembly), a leak at the base (failed O-ring at the faucet body), stiff or jerky handle movement (mineral deposits or corroded cartridge tracks), or reduced flow (clogged aerator or partially closed supply valve). We diagnose the cause, repair the specific component, and test for full leak-free operation.

Bathroom

Bathroom Sink Faucet Repair

Single-handle bathroom faucets use cartridge valves โ€” one cartridge controls both hot/cold mixing and volume. When the cartridge wears, the result is a drip that typically starts slowly and worsens over months. We identify the cartridge model by the faucet brand and replace it with the correct OEM cartridge.

Shower

Shower Valve Cartridge Replacement

After cartridge replacement, we verify anti-scald calibration โ€” the maximum hot water limit set by the cartridge rotational stop โ€” to confirm the valve won't deliver scalding water at full hot even if a supply pressure event occurs.

Outdoor

Outdoor Spigot & Hose Bibb Repair

Freeze-proof (anti-siphon) hose bibbs found in colder Larkspur, CA climates have a longer stem that shuts water off 8โ€“12 inches inside the heated wall. When these fail or freeze-crack internally, the whole bibb typically needs replacement to restore the freeze-protection function.

Low Flow

Aerator Cleaning & Flow Restoration

Reduced flow at a kitchen or bathroom faucet is almost always a clogged aerator โ€” the small screen-and-flow-restrictor assembly at the tip of the spout. Mineral scale from hard water accumulates in the aerator mesh over time, progressively reducing flow to a trickle. Aerator cleaning or replacement restores full rated flow in minutes.

Replacement

Full Faucet Replacement

We handle the full installation: shut the supply, disconnect the old faucet, inspect the supply lines and angle stop valves, install the new faucet, connect supply, adjust the aerator, and verify drip-free operation before leaving.

Masters Plumbing Service's Faucet Repair Workflow in Larkspur

Here's exactly how a Masters Plumbing Service faucet repair call runs in Larkspur, CA.

1

Call & Describe Your Faucet Symptom

Drip at the spout? Leak at the base? Stiff handle? Low flow? Knowing the symptom and, if possible, the faucet brand lets us arrive with the most likely replacement parts already stocked on the truck.

2

Valve Type Identification & Diagnosis

For many major-brand cartridges โ€” Moen 1225, Delta RP46074, Kohler GP30413 โ€” the part is on the truck and the repair proceeds immediately.

3

Flat-Rate Quote & Repair Execution

You receive a flat-rate quote covering parts and labor before the water is shut off under the sink. Common repairs โ€” cartridge replacement, ball assembly rebuild, aerator service โ€” are straight-forward pricing with no variable labor component.

4

Verify Zero Drip Before Leaving

We also confirm the angle stop valves under the sink operate โ€” a seized stop valve that can't shut off in a future emergency is a problem worth noting while we're already under the cabinet.

24/7 Emergency Faucet Repair experts in Larkspur, CA

What Larkspur Customers Say About Our Faucet Work

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My kitchen faucet had been dripping for two years โ€” I kept putting it off. Masters Plumbing Service's tech identified it as a Delta ball-type faucet and had the complete repair kit on his truck: new ball, springs, seats, and O-rings. The whole rebuild took 40 minutes. The faucet moves smoothly now and there's absolutely no drip. I only wish I'd called sooner given how much water I was wasting.

โ€” K. Svensson, Larkspur
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Had a hose bibb that dripped at the packing nut all summer. Tech replaced the packing material and seat washer in 20 minutes. Also told me the freeze-proof stem length was correct for my wall depth, which was reassuring heading into winter.

โ€” P. & G. Delacroix, Larkspur, CA
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Full bathroom faucet replacement โ€” my old two-handle fixture was discontinued and no cartridges were available. Masters Plumbing Service supplied a quality Moen single-handle faucet in the same 4-inch centerset configuration, removed the old fixture, replaced the supply lines with braided steel, and installed the new unit. Clean, level installation. Also replaced both angle stop valves under the sink since the originals were 20 years old and barely turned.

โ€” R. Fontaine, Larkspur, CA
Trusted Faucet Repair service in Larkspur, CA - Masters Plumbing Service

Faucet Questions We Answer Every Day in Larkspur

At one drip per second โ€” which looks minor โ€” a faucet wastes roughly 3,000 gallons per year. At average residential rates in CA, that's approximately $15โ€“$25 per year per dripping faucet. A faster drip or multiple faucets multiply that cost. The EPA estimates that fixing all the leaks in an average home saves 10% on annual water bills.
For most faucets from established brands โ€” Moen, Delta, Kohler, Price Pfister โ€” replacement cartridges and repair kits are available and the fixture is worth repairing. We carry or can source these parts and prefer repair over replacement when the faucet body itself is in good condition.
Temperature swings during a shower โ€” particularly when another fixture is used elsewhere in the house โ€” indicate a failing pressure-balance cartridge. The cartridge's job is to compensate for supply pressure changes caused by other fixtures drawing hot or cold water, keeping shower temperature stable. When the cartridge wears, it loses this compensation ability and temperature follows the pressure fluctuation.
Stiffness in a faucet handle is usually caused by mineral scale accumulation on the cartridge tracks and O-ring contact surfaces, or a cartridge that's beginning to seize from corrosion. In many cases, a new cartridge โ€” which comes with new lubricated O-rings and a clean ceramic or plastic body โ€” restores smooth operation completely.
Ball faucets are more common in older kitchen faucets and in some outdoor fixtures. Most modern single-handle fixtures are cartridge or ceramic disc designs. Identifying which type is present is the first step in every faucet repair call.
Cartridge replacement on a standard bathroom or kitchen faucet: 30โ€“45 minutes. Ball faucet rebuild: 45โ€“60 minutes. Shower pressure-balance cartridge replacement and anti-scald verification: 60โ€“90 minutes. Aerator cleaning: 15 minutes. Full faucet replacement (fixture supplied): 60โ€“90 minutes.

Faucet Repair Covering Larkspur and All of Larkspur, CA

Masters Plumbing Service dispatches faucet repair technicians throughout Larkspur and the surrounding Larkspur, CA service area. Same-day service is available most days โ€” call to confirm today's availability.

Reliable Faucet Repair contractor in Larkspur, CA by Masters Plumbing Service
๐Ÿ“ž Call +1-855-718-1500 โ€” Same-Day Service

Call +1-855-718-1500 for Same-Day Faucet Repair in Larkspur

Our faucet techs are in Larkspur today with cartridges and repair kits for all major brands. Most repairs complete in a single visit โ€” drip-free, same day.

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Our Services in Larkspur, CA

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๐ŸŸข Techs On Duty in Larkspur, CA Call +1-855-718-1500