Know The Warning Signs
Kitchen leaks often hide under the cabinet until real damage shows up. If any of these sound familiar, get it checked before the cabinet floor pays the price.
When you call about a kitchen plumbing issue, we'll ask when it happens: while running the dishwasher, using the disposal, or just sitting. That helps us know what to test first. You'll get a clear arrival window.
We run the sink, disposal, and dishwasher together to reproduce the issue rather than guessing at a fix. Once we find the actual source, we walk you through the repair and cost before starting.
We run the full system again to confirm the leak or clog is actually resolved, not just quieter. We clean up under the cabinet and let you know if anything nearby is worth watching.
Whole-System Kitchen Diagnosis
Your sink, dishwasher, and disposal share the same drain line, so a leak or clog in one often starts somewhere else. We trace the problem through the whole system instead of tightening the first fitting we find.
We trace kitchen leaks to their actual source before recommending a repair. If something isn't right after we leave, call us and we'll come back and fix it.
You'll see itemized pricing before any work starts, and we keep you posted if the scope changes. The number you approve is the number on your invoice.
A puddle under the sink after running the dishwasher looks like a dishwasher problem, but the actual leak is often at the drain hose connection, the air gap, or a loose disposal mounting ring instead. Since all three systems share the same drain path under the sink, tracing the water back takes running the dishwasher and disposal during the inspection, not just looking at a dry cabinet.
We run the sink, disposal, and dishwasher together during a kitchen call specifically to catch intermittent leaks that only show up under certain conditions. Guessing at which fitting to tighten usually means a callback in a few weeks when the same leak comes back.
Kitchen drains handle more grease and food debris than any other drain in the house, which means they clog faster if left alone. A slow-draining sink that seems fine after cleaning usually has buildup further down the line, past where a store-bought cleaner reaches.
During a kitchen visit, we typically check:
Did you know that approximately 9-13% of our service calls are to come out to fix other companies' mistakes?
From Downtown to the Suburbs
Kitchen layouts vary across San Antonio, from galley kitchens in older homes to open layouts with double sinks and multiple appliances tied into one drain run. PlumbSmart has worked on both, and diagnoses accordingly.
Diane Mcelroy
Recent Google review
I am having a weird issue with intermittent dampness in my garage. Roger spent about 1.5 hours trying to locate the problem. He assured me it was not a plumbing problem and told me not to worry about the service call.
Andrew Schaffrinna
Recent Google review
Joey was extremely knowledgeable and friendly. Excellent service, excellent advice, went above and beyond by providing me with recommendations on how to prevent future issues. Highly recommend.
Kristi Lopez
Recent Google review
So happy with our new system! The team was absolutely fantastic! Thank you!
Svetla McPhie
Recent Google review
PlumbSmart was the only plumbing company that responded the same day to fix a leak. Excellent work and coordination. All over great team.
Plumbing disasters don't wait for business hours. Our expert team is ready to roll at any moment's notice, day or night, to handle your emergencies.
This is one of the most common kitchen calls we get. It's usually a loose connection where the dishwasher drain hose ties into the sink drain or disposal, a cracked air gap fitting, or a worn washer at a supply connection. We trace the water back to its actual source instead of just tightening the first fitting we see.
If cleaning doesn't help, the clog is likely further down the line than a plunger or drain cleaner can reach, often at the trap or where the disposal ties in. Grease buildup is the most common cause in kitchen drains specifically, since it coats the pipe walls and narrows over time.
It adds up faster than people expect, both in water waste and in wear on the cabinet below if it's dripping at the base. Most drips come from a worn cartridge or O-ring, which is a straightforward repair. Left alone, the drip usually gets worse, not better.
Yes. The disposal mounts directly to the sink drain and connects to both the dishwasher drain line and the main drain pipe. A loose mounting ring, a cracked disposal housing, or a bad gasket at any of those connections can show up as a leak that looks like it's coming from the sink itself.
Intermittent leaks are usually tied to specific actions: running the dishwasher, using the disposal, or filling the sink to a certain level. We run through those scenarios during the visit to reproduce the leak and watch exactly where the water is coming from, rather than guessing from a dry cabinet.
Did you know that approximately 9-13% of our service calls are to come out to fix other companies' mistakes?
From the Blog
Practical tips and local insights from the PlumbSmart team.
1233 Safari St, San Antonio, TX 78216
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Kitchen plumbing calls almost always come down to the same handful of connections: the dishwasher drain hose tying into the sink drain, the disposal mounting ring, or a supply line fitting that's finally worn through after years of use. None of these are visible until you get under the cabinet and actually run the system.
We test the sink, disposal, and dishwasher together during the visit so we can watch exactly where the water shows up instead of guessing from a dry cabinet floor. That matters most with intermittent leaks, the kind that only happen under specific conditions and disappear by the time you check.
If the cabinet floor has already started to soften or warp, we'll flag that separately since it's a repair of its own, but the plumbing fix and the cabinet repair don't always need to happen at the same time.