Low water flow at a kitchen or bathroom faucet is almost always a clogged aerator or a partially failed cartridge β not low supply pressure. Stiff handles, dripping spouts, and leaks under the sink each trace to specific internal components. Our techs in Centerville know faucet valve anatomy across all the major brands and carry the parts to fix them.
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We identify the valve type, source the correct OEM or quality aftermarket replacement, and restore the faucet to full operation β no leaks at the spout, no stiff handle, no drip.
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.
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 β it can cause scalding or cold-water bypass.
Shower valves β particularly pressure-balance and thermostatic mixing valves β 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 Centerville, CA homes and understand the anti-scald setpoint calibration that should be verified after any shower valve cartridge replacement.
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.
Here's the full range of faucet repair work our techs handle in Centerville, CA β by fixture type and by symptom.
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.
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 β telling us which handle's valve needs attention.
After cartridge replacement, we verify anti-scald calibration β the maximum hot water limit set by the cartridge rotational stop β to confirm the valve won't deliver scalding water at full hot even if a supply pressure event occurs.
Outdoor hose bibbs fail in two ways: a dripping spout (worn stem packing or seat washer) or a leak at the packing nut behind the handle (deteriorated packing material around the stem). Most hose bibb repairs involve replacing the seat washer and packing without removing the body from the wall.
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.
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.
Here's exactly how a Masters Plumbing Service faucet repair call runs in Centerville, CA.
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.
The tech identifies the faucet's valve type (ball, cartridge, ceramic disc, or compression), locates the specific cartridge or repair kit number for that model, and checks whether the required part is on the truck or needs to be sourced.
You receive a flat-rate quote covering parts and labor before the water is shut off under the sink. Common repairs β cartridge replacement, ball assembly rebuild, aerator service β are straight-forward pricing with no variable labor component.
After repair, we run the faucet through the full temperature range, check the spout, base, handle, and supply connections for any drip, and confirm the aerator flow is unrestricted. The repair is complete when we can demonstrate it's dry and flowing correctly.

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

Our techs carry cartridges for the major brands most commonly found in Centerville, CA residential homes and businesses.

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