Kitchen Sink Repair
Repair for leaks, drainage problems, loose fixtures, damaged connections, and other kitchen-sink plumbing issues.
Sink Repair and Installation in San Antonio, TX
A leaking, clogged, loose, or damaged sink can interfere with everyday tasks and may cause water damage beneath the fixture. Sink problems may involve the faucet, drain, trap, supply lines, shutoff valves, mounting, or the sink itself.
Lujan Plumbing provides professional kitchen, bathroom, bar, laundry, and utility sink repair and installation for homeowners throughout San Antonio and the surrounding area.
Bathroom Sink Repair
Diagnosis and repair for leaking drains, slow flow, loose sinks, faucet problems, and damaged plumbing beneath the vanity.
Sink Drain Repair
Repair or replacement of leaking strainers, drain assemblies, traps, tailpieces, and related connections.
Sink Leak Diagnosis
Identification of water coming from the faucet, supply lines, shutoff valves, drain, trap, disposal, or sink basin.
Sink Replacement
Removal of a damaged or outdated sink and installation of a compatible replacement.
New Sink Installation
Professional plumbing connection for compatible sinks installed during a bathroom, kitchen, bar, or utility-room update.
Signs Your Sink Needs Attention
- Water collects beneath the sink
- The drain leaks while water is running
- The sink drains slowly or repeatedly clogs
- The faucet or sink moves when used
- The drain produces unpleasant odors
- The trap or drain connections are corroded
- The sink basin is cracked or damaged
- Water appears around the countertop or cabinet
- The shutoff valve or supply line is leaking
- The sink gurgles or backs up during use
Water beneath a sink may come from several different sources, so the complete fixture and surrounding plumbing should be inspected before replacing a part.
Find the Source First
Where Is the Sink Leak Coming From?
A leak beneath a sink may originate from the faucet, water-supply lines, shutoff valves, drain strainer, garbage disposal, trap, tailpiece, dishwasher connection, or the sink basin itself.
Water can travel along pipes and cabinets before dripping, so the wettest area is not always the actual source.
Lujan Plumbing will inspect the fixture and identify the leaking component before recommending repair or replacement.
Common Sink Plumbing Problems
Leaking Drain Strainer
A failed seal or loose strainer can allow water to leak where the drain passes through the sink basin.
Loose Drain Connections
Slip joints, nuts, washers, and fittings may loosen, shift, or deteriorate over time.
Damaged P-Trap
A cracked, corroded, misaligned, or leaking trap may release water and sewer odors beneath the sink.
Clogged Sink Drain
Hair, soap, grease, food residue, toothpaste, and debris can restrict the drain and cause backups.
Leaking Supply Lines
Worn hoses, fittings, and connections may leak continuously or only while the faucet is operating.
Loose or Damaged Mounting
A sink may shift or separate when clips, supports, sealant, cabinetry, or countertop materials fail.
Kitchen Sink Repair
Kitchen sinks often connect to several components, including the faucet, garbage disposal, dishwasher drain, water supply, trap, and branch drain.
- Water leaks when the disposal or dishwasher runs
- One side of a double sink backs up into the other
- The drain strainer leaks beneath the basin
- The sink drains slowly despite disposal use
- The faucet or sprayer connection leaks below the countertop
- Drainpipes shift or separate inside the cabinet
Because several systems meet beneath a kitchen sink, careful diagnosis is important before assuming the sink or drain itself is responsible.
Bathroom Sink Repair
Bathroom sink problems commonly involve faucet leaks, pop-up drain assemblies, traps, shutoff valves, supply lines, and buildup from hair, soap, toothpaste, and grooming products.
Pop-Up Drain Repair
Repair for stoppers that do not close, open, drain, or seal correctly.
Vanity Plumbing Leaks
Inspection of water appearing inside or beneath bathroom cabinets.
Slow Bathroom Sink Drain
Clearing of buildup around the stopper, trap, or nearby drain line.
Should You Repair or Replace the Sink?
Many sink problems involve replaceable plumbing components rather than the sink basin itself. A drain assembly, trap, supply line, faucet, seal, or mounting component may be repaired independently.
Replacement may be more practical when the sink is cracked, badly corroded, damaged around the drain opening, improperly sized, or no longer compatible with the surrounding countertop and cabinetry.
Choosing a Replacement Sink
- Installation type: Drop-in, undermount, wall-mounted, pedestal, vessel, and utility sinks require different support and connections.
- Sink dimensions: The basin must fit the countertop, cabinet, wall, and surrounding fixtures.
- Drain location: The sink outlet should align reasonably with the existing plumbing.
- Faucet configuration: The number and spacing of mounting holes must match the faucet.
- Cabinet clearance: Deep basins may interfere with drawers, shelves, disposals, or drainpipes.
- Countertop compatibility: Some sink replacements require countertop modification by another trade.
What to Expect During Sink Service
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1
Describe the Problem
Tell us where you see water, how the sink drains, and when the problem occurs.
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2
We Inspect the Sink and Plumbing
We examine the basin, faucet, supply lines, valves, drain, trap, and nearby connections.
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3
You Receive a Recommendation
We explain whether repair, drain cleaning, resealing, or replacement is appropriate.
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4
We Complete and Test the Work
After service, we run water and inspect the fixture for leaks, drainage, and stability.
Why San Antonio Homeowners Choose Lujan Plumbing
- More than 30 years of plumbing experience: Your sink plumbing is evaluated by an experienced Master Plumber.
- Complete fixture inspection: We consider the faucet, supply, drain, trap, mounting, and sink itself.
- Repair-first recommendations: We explain when an individual component can be repaired instead of replacing the sink.
- Local and family-owned: You receive personal service from a San Antonio plumbing business.
- Respect for your home: We work carefully around cabinetry, counters, flooring, and finished surfaces.
- Clear communication: We explain the recommended work before completing the service.
Frequently Asked Questions About Sink Repair
Why is my sink leaking underneath?
The leak may come from a supply line, shutoff valve, faucet, drain strainer, disposal, trap, tailpiece, dishwasher connection, or damaged sink basin.
Why does my sink drain slowly?
Slow drainage is commonly caused by buildup in the stopper, strainer, trap, or nearby drainpipe. A deeper restriction is also possible.
Can a leaking sink damage my cabinets?
Yes. Even a small recurring leak can damage cabinet materials, flooring, drywall, and nearby finishes.
Why does my sink smell bad?
Odors may come from food residue, organic buildup, a dirty disposal, a dry or leaking trap, or a drainage or venting problem.
Can a cracked sink be repaired?
Minor cosmetic damage may sometimes be repairable, but cracks that leak, spread, or affect the drain or mounting area often require sink replacement.
Can I purchase my own replacement sink?
Yes, but confirm the dimensions, mounting style, drain location, faucet-hole configuration, countertop opening, and cabinet clearance before purchasing it.
Does a plumber install undermount sinks?
A plumber can connect the faucet, drain, disposal, and water supply. Mounting or modifying an undermount sink may also require a countertop installer, depending on the project.
Do you serve areas outside San Antonio?
Lujan Plumbing serves San Antonio and nearby communities. Contact us to confirm service availability for your address.
Request Plumbing Service
Need Help With a Leaking, Clogged, or Damaged Sink?
Contact Lujan Plumbing for professional sink repair and installation in San Antonio. We will inspect the fixture, explain the source of the problem, and recommend a practical solution.