Galvanized or cast-iron drain in an older home
Galvanized drain arms corrode at the threads and leak where they enter the wall. Cutting back to sound pipe and transitioning to PVC is the usual fix.
Serving Berwyn & nearby Oak Park, Chicago
Kitchen Sink Leak & Drain Repair in Berwyn, IL
Leaks under the kitchen sink in Berwyn traced to the source and fixed, from the strainer to the drain in the wall.
- Technicians covering Berwyn ZIP 60402
- Diagnosis first, then a written price for the repair
- Honest advice when replacing makes more sense
Sink leaks and drain problems we repair in Berwyn
We repair leaking kitchen sink drains in Berwyn: new traps and tailpieces, resealed basket strainers, tightened or replaced dishwasher connections and cracked drain pipe cut out and replaced.
Leak right after a new dishwasher install
A new dishwasher sometimes leaks at the drain connection because the knockout plug in the disposal wasn't removed or the clamp wasn't tightened. We correct the hookup.
Musty smell under the sink
If the sink base smells damp, water is getting somewhere. Finding a small leak early saves the cabinet and the floor below.
Old S-trap or wrong parts
Flexible accordion pipe, mismatched parts and S-traps all cause leaks and slow drains. We replace them with standard trap parts.
Drain sealed with tape or putty
Duct tape, epoxy putty or silicone around a drain joint buys a few weeks at most. We remove the patch and replace the joint properly.
Cracked or corroded drain pipe
A pinhole or crack in the drain pipe can't be sealed for long. We replace the section with new pipe and fittings.
Leak at the drain in the wall
The joint where the sink drain meets the wall pipe can loosen or corrode. We rebuild it so the trap seals to sound pipe.
Leak only when water runs
Water under the sink only while the faucet runs points to the supply side: a valve, a connector or the faucet base. Drain leaks show up when water goes down.
Where we look first
- Locate the leakWater run in stages: faucet, full bowl, disposal, dishwasher drain.
- Basket strainer resealA new basket strainer if the old one is corroded or cracked.
- Trap and tailpieceNew trap, washers and tailpiece in PVC or chrome-plated brass.
- Dishwasher and disposal connectionsHose clamps, inlet and outlet fittings checked and replaced.
- Drain pipe and wall connectionThe trap adapter or drain arm at the wall rebuilt when it leaks.
- Cabinet floor repairDamaged sink base floor cut out and replaced once the plumbing is dry.
- Leak testWe run water through every path and confirm nothing drips.
Common fixes and parts
Basket strainersThe fitting at the bottom of the bowl that holds the stopper and seals the drain.
Plumber's putty and gasketsPutty or rubber gaskets seal the strainer to the sink; stone sinks often need a putty that won't stain.
Chrome-plated brass trapsHeavier metal traps for exposed sinks or where you want a finished look.
Transition couplingsFittings rated for connecting new drain pipe to older metal pipe.
Dishwasher hose and air gapA new drain hose, clamps and a high loop or counter air gap where required.
What the work looks like in Berwyn homes
Problem
Fixed
DetailBefore and after: a brick bungalow from the 1920s in Berwyn
This one is a brick bungalow from the 1920s in Berwyn. The kitchen as it was: white porcelain double-drainboard sink. What bothered the owners most: an old drain dripping into the sink base. After: the drain rebuilt with new fittings and a dry cabinet floor. Work included trap and tailpiece, dishwasher and disposal connections, plus leak test.
Before
AfterOak Brook kitchen, 1990s two-story colonial: kitchen sink leak & drain repair
This one is a 1990s two-story colonial in Oak Brook. The kitchen as it was: solid-surface integrated sink. The reason for the call: a water-stained cabinet floor. Finished kitchen: the drain rebuilt with new fittings and a dry cabinet floor. On site this meant trap and tailpiece, dishwasher and disposal connections, plus drain pipe and wall connection.
Kitchen Sink Leak & Drain Repair in Oak Brook →
Before
AfterBerwyn kitchen, 1920s bungalow: kitchen remodeling
Soft sage-green inset-style cabinets with unlacquered brass hardware, honed white marble-look quartz counters, a white handmade-look square tile backsplash, restored oak strip floor and schoolhouse pendant lights.
Kitchen Remodeling in Berwyn →
Before
AfterBerwyn kitchen, prewar foursquare: kitchen cabinet painting
The same doors sprayed in soft white, new matte black pulls; counters and floor stayed as they were.
Kitchen Cabinet Painting in Berwyn →From diagnosis to fixed
- Call or send a photoTell us what you see; a photo of the cabinet helps us bring the right parts.
- Find the sourceDiagnosis first, then we explain what failed and what the repair involves.
- RepairNew trap, strainer seal, hose or pipe section as needed.
- Test and dryWe confirm the repair holds and show you what to watch for.
Kitchen Sink Leak & Drain Repair questions from Berwyn homeowners
Can you fix water damage to the sink cabinet?
Yes. Once the leak is fixed and dry, we replace the cabinet floor or add a liner to protect it.
Can a leaking sink cause mold?
It can, if the leak goes on for weeks. We check the cabinet and wall for moisture during the repair.
Is it safe to keep using the sink?
Small leaks can wait a day; ongoing water damages the cabinet and floor quickly. Shut off the valves if it's the supply side.
How do I tell if it's the drain or the faucet?
If it leaks only while the faucet runs, look at the supply side. If it leaks when water drains, it's the drain side.
Do I need to replace the whole drain?
Rarely. Usually one part failed: a washer, a trap, a strainer seal or a section of pipe.
Does sink leak repair need a Berwyn building permit, and who files it?
Permits go through Building Department, City of Berwyn, phone 708-788-2660. When your scope needs one, we prepare the application and schedule the inspections.
Do I need a permit for sink leak repair in Berwyn?
It depends on the scope. Berwyn's rule in short: City permit list includes any kitchen and bathroom remodeling, all electrical work, and plumbing/sewer work (faucet or toilet replacement excluded). We handle the permit when one is needed with Building Department, City of Berwyn.
Do you work in my part of Berwyn?
Yes. Our crews work across Berwyn, including South Berwyn, South Oak Park area, Depot District, LaVergne — ZIP 60402 — and nearby Oak Park, Chicago, Oak Brook.
Working in Berwyn
- Most Berwyn homes are prewar. We work around plaster walls, radiators and out-of-square rooms every week.
- Most Berwyn homes are single-family. We protect floors and driveways and leave the site clean every day.
- Live in the Central Berwyn Bungalow Historic District? Interior kitchen work is usually not reviewed. We check before anything touches the exterior.
South BerwynSouth Oak Park areaDepot DistrictLaVergneOgden Avenue
ZIP 60402
Kitchen Sink Leak & Drain Repair nearby
Other kitchen services in Berwyn
Kitchen Sink Installation & ReplacementNew sinks, undermount and farmhouse styles.
Kitchen Faucet InstallationFaucet swaps and new pull-down faucets.
Garbage Disposal Installation & RepairDisposals unjammed, repaired or replaced, with the drain connected right.
Kitchen RemodelingFull kitchen remodels, from layout to last cabinet pull.
Kitchen Cabinet PaintingFactory-smooth painted cabinets without replacing them.