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 Castleton know faucet valve anatomy across all the major brands and carry the parts to fix them.
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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 Castleton, VA.
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.
Moen, Delta, Kohler, Price Pfister, American Standard, Grohe, Hansgrohe โ 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.
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 Castleton, VA 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 Castleton, VA โ by fixture type and by symptom.
Older kitchen faucets with two separate handles use compression valves โ 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 Castleton, VA homes built before 1980.
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.
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.
Freeze-proof (anti-siphon) hose bibbs found in colder Castleton, VA climates have a longer stem that shuts water off 8โ12 inches inside the heated wall. When these fail or freeze-crack internally, the whole bibb typically needs replacement to restore the freeze-protection function.
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 Castleton, VA.
If you know the brand โ Moen, Delta, Kohler, Price Pfister โ tell us. If not, the tech will identify it on-site from the valve body and handle design.
For many major-brand cartridges โ Moen 1225, Delta RP46074, Kohler GP30413 โ the part is on the truck and the repair proceeds immediately.
If the faucet body is corroded or the seat is damaged, we explain the repair complication and re-quote before proceeding.
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.

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.
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.
Low flow in the master bath โ I assumed the pressure regulator was failing. Tech cleaned the aerator (heavily scaled), and flow went from a trickle to full pressure immediately. 10-minute fix, saved me from chasing a pressure problem that didn't exist.

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

Our faucet techs are in Castleton 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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