Are your Faucet Repair services available in Onyx?

Yes, Masters Plumbing Service provides round-the-clock Faucet Repair services directly in Onyx, CA.

How much does emergency service cost in Onyx?

We offer upfront, transparent pricing with no hidden fees for all service calls in Onyx.

🔧 Cartridge · Ball · Ceramic Disc · Compression

Professional Faucet Repair in Onyx, CA — All Brands, Same-Day Service

Name: Masters Plumbing Service
Telephone: +1-855-718-1500
Price range: $$
Rating: 4.9

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

📞 Call +1-855-718-1500 — Same-Day Service

All Faucet Brands & Types Cartridge & Ceramic Disc Specialists Kitchen, Bath & Outdoor Fixtures Stocked Parts On-Truck

Licensed Faucet Repair service in Onyx, CA - Masters Plumbing Service

Our Qualifications

Why Onyx Homeowners Call Masters Plumbing Service for Faucet Work

We identify the valve type, source the correct OEM or quality aftermarket replacement, and restore the faucet to full operation — no leaks at the spout, no stiff handle, no drip.

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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

Moen, Delta, Kohler, Price Pfister, American Standard, Grohe, Hansgrohe — each brand uses proprietary cartridge and valve designs that are not interchangeable. Moen uses their own 1200 and 1225 cartridge system; Delta uses ball valves in older fixtures and cartridges in newer ones; Kohler uses Rite-Temp pressure-balance cartridges in shower valves.

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Shower & Tub Valve Specialists

Thermostatic shower valves (separate volume and temperature controls) are premium fixtures found in master baths where comfort and safety depend on correct cartridge specification. We don't substitute cheaper cartridges on thermostatic valves.

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Under-Sink Leak Diagnosis

Not every under-sink leak is the faucet itself — many are supply line connections, P-trap slip joints, garbage disposal collars, or drain body gaskets. Our techs trace the water source precisely before recommending a faucet repair or replacement.

Our Faucet Services

Faucet Problems We Diagnose and Fix in Onyx

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

Kitchen

Kitchen Faucet Repair & Replacement

Older kitchen faucets with two separate handles use compression valves — each handle has a rubber seat washer that wears and needs periodic replacement. We stock washers and seat tools for these older designs, which are still common in Onyx, CA homes built before 1980.

Bathroom

Bathroom Sink Faucet Repair

Two-handle bathroom faucets (separate hot and cold) are often compression or ceramic disc designs. A drip from a two-handle set almost always comes from one side only — telling us which handle's valve needs attention.

Shower

Shower Valve Cartridge Replacement

After cartridge replacement, we verify anti-scald calibration — the maximum hot water limit set by the cartridge rotational stop — 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 Onyx, CA climates have a longer stem that shuts water off 8–12 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

Persistent low flow after aerator cleaning points to a partially failed cartridge that's not opening fully, or a kinked supply hose under the sink. We trace the restriction and resolve it.

Replacement

Full Faucet Replacement

When a faucet is discontinued (no available replacement cartridge), heavily corroded at the body, or simply past useful life, we replace the fixture. We supply faucets in the common hole configurations (single-hole, three-hole, widespread) and in finishes to match your existing hardware — chrome, brushed nickel, oil-rubbed bronze.

📞 Call +1-855-718-1500 — Stop the Drip Today

Our Process

How Our Faucet Repair Process Works in Onyx, CA

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

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.

Valve Type Identification & Diagnosis

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

Flat-Rate Quote & Repair Execution

If the faucet body is corroded or the seat is damaged, we explain the repair complication and re-quote before proceeding.

Verify Zero Drip Before Leaving

We also confirm the angle stop valves under the sink operate — 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.

Customer Reviews

What Onyx Customers Say About Our Faucet Work

★★★★★

Single-handle Moen bathroom faucet dripping at the spout. Tech pulled the cartridge — an old 1200 design that was heavily scaled — swapped in a new Moen cartridge, adjusted the flow limiter, and the faucet has been silent for three months. Clean work, fast, reasonably priced.

— K. Svensson, Onyx

★★★★★

My shower temperature was impossible to control — any toilet flush or washing machine cycle would cause a cold spike mid-shower. Masters Plumbing Service replaced the pressure-balance cartridge in the Kohler valve, set the anti-scald stop at 120°F, and tested temperature stability by running the toilet while the shower ran. The swing went from 15+ degrees to less than 2. That's how a pressure-balance valve is supposed to work.

— P. & G. Delacroix, Onyx, CA

★★★★★

Full bathroom faucet replacement — 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.

— R. Fontaine, Onyx, CA

Trusted Faucet Repair service in Onyx, CA - Masters Plumbing Service

Common Questions

What to Know Before Scheduling Faucet Repair in Onyx, CA

The more important issue: a drip that starts slow almost never stays at one drip per second. The cartridge or seat washer continues to deteriorate, worsening the leak until it's a steady stream or a handle that no longer shuts off at all.

For most faucets from established brands — Moen, Delta, Kohler, Price Pfister — 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.

A shower that fluctuates only at extreme handle positions (scalding at full hot, freezing at full cold) may actually have a correctly functioning but incorrectly set anti-scald stop — a mechanical rotational limiter on the cartridge that's adjustable without cartridge replacement.

If the stiffness is in a ball-type faucet, the cam and packing assembly may be binding — a rebuild kit with new cam, packing, and springs typically resolves it. We assess which type you have and quote accordingly.

Cartridge faucets use a replaceable ceramic or plastic cartridge that slides in and out of the valve body — repair means pulling the old cartridge and installing the new one in the correct orientation. Ball faucets use a rotating stainless-steel or brass ball with ports that align with supply inlets — repair means a rebuild kit with new ball (if scored), springs, seats, and O-rings installed into the cleaned valve body.

These estimates assume the shut-off valves under the sink operate correctly. Corroded angle stop valves that need replacement before work can begin add 20–30 minutes. We tell you upfront if the stop valves are a concern.

Professional Faucet Repair in Onyx, CA — All Brands, Same-Day Service