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Bathroom Sink Plumbing

Bathroom sinks come in a variety of shapes, colors, styles and materials. Luckily, their plumbing is usually pretty consistent. So when problems arise, understanding your sink’s plumbing will help you know what to fix and when to call the pros. Here are the most common problems we see with bathroom sinks and why they often occur

Common Bathroom Sink Problems


Hair is the most common reason for a clogged bathroom sink. Any and all types of hair can keep your sink from draining properly – even tiny facial hairs. Ironically, soap can also clog your pipes if it reacts negatively to the minerals in your water.

Drain-cleaning chemicals and snakes are both inexpensive ways to unclog your drain in a pinch. However, frequently clogging drains should be seen by a professional. If you use commercial drain cleaners on a regular basis, the chemicals may damage your pipes.

Some other reasons you should immediately call a plumber are if a mess is spreading or the clog is affecting other drains.


Leaky sinks waste water. This increases your utility bill and can ruin the belongings in your bathroom. The O ring in your sink’s faucet keeps water from leaking but can become damaged and worn out over time. Corrosion and friction from water pressure can also cause your sink’s valve seat or washer to wear down and become less effective.

If the water is coming from under your sink, dry and remove everything in the cabinet to locate the leak. After tightening the connections with a wrench, leaking supply and waste lines can usually be fixed with waterproof tape or plumber’s putty. If the faucet is leaking beneath the sink, it could be an internal problem that should be best assessed by a professional.


When your bathroom sink smells like sulfur, it’s most likely coming from an underground hydrogen sulfide gas. To determine where the smell is coming from, fill two cups with water – one with cold and the other with hot. If both smell the same, check the other sinks in your home for the same smell. If the smell is localized to your bathroom sink, it’s your fixture and not your entire home’s water.

Cleaning your pipes with hydrogen peroxide and replacing old ones can eliminate this problem. If nothing seems to work, let the Gotelli Plumbing professionals handle it.

Lacking Pressure

If your bathroom sink is the only one with low water pressure, the screen that filters your water could have a clog. To fix this, take it off and clean it in hydrogen peroxide or vinegar.

If the water pressure is still lacking, make sure your pipes aren’t leaking from anywhere. One of your pipes could be broken even if you can’t see it under your sink. Clogged supply pipes from mineral buildup can also keep your water pressure from reaching its full potential.

If you’re unable to locate the origin of the problem or need a professional opinion, contact Gotelli Plumbing Co. today.

Why Choose Gotelli Plumbing?

5-star customer service
Customer Focused
Our goal is to give every customer the best plumbing service available. Our technicians are professional and well-trained to make sure we achieve that goal.
family owned business
Family-Owned and Operated
We're a family-run business living and working in Marin County, so treating our neighbors like family is the center of our values.
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Reliable Service
Our technicians are background checked and trained in the latest plumbing advancements to ensure you get the service your home or business deserves.

What Our Customers Say

Very Professional

Very professional, very accommodating and very successful unclogging solution to our plumbing emergency. Many thanks!

Michael M.

Fast and Efficient

It was great working with Sam S! He’s fast and efficient. He found the problem in a matter a few short minutes. Then he had the part delivered to our home. Thank you!!!

Stephen S.

Courteous and Thorough

Cory was very professional, courteous, thorough, and fixed the problem. Also, the women I spoke with on Friday morning was also very courteous and accommodating . 5 stars for sure!!!

Chris H.

Pleasant Attitude

Cory came out to inspect a questionable smell from under my house and quickly was able to identify the source – a decomposing rat that my pest control guy was on able to locate after three previous visits! Thank you Cory for your fast and efficient service and a pleasant attitude!

Rebecca C.

Quick Response Time

The response from Gotelli Plumbing was excellent. The next time Tom arrived right on time and the quality of his work was outstanding. When he finished he walked me through everything he had done and I could not have been more pleased with the results. I’m so thankful to have such professionals available when need and on such short notice.

Raymond R.

Excellent Service

Tom provided excellent service. He is obviously experienced- and quickly solved the problem. Our gas had to be shut off, so we were without our stove to cook, furnace to heat and hot water. Our home is happy again!

Keith B.

Superb Service

Tom of Gotelli Plumbing provided superb service for us in replacing a very balky tub spout, and worn out toilet parts. Not only was he extremely professional and thorough but he was able to answer all my questions concerning the service. I would give 6 stars if I could.

Edward D.

Always on Time

Tom has worked on numerous plumbing issues in our home over the years. He’s always on time, polite, hard working and an excellent plumber overall. I strongly recommend Tom R. for any plumbing jobs you need! We’ll continue to use Tom for all our future plumbing problems. Thanks!

Rachel C.

Fantastic Service

Fantastic service from Steve, who came to our home on time, surveyed the issue, and came back to fix the problem – all with a smile.

Bill D.

Great Experience

I had a great experience with Gotelli Plumbing when we needed a leak in a pipe fixed. Tom was professional and friendly. He also got the job done faster than original estimated, so the work was less expensive than I anticipated. I will use Gotelli Plumbing again in the future.

Kendall F.

Affordable Pricing

Water heater died just in time for Thanksgiving company to arrive. Gotelli sent Joey out first thing this morning. Not only was Joey a super nice guy, he fixed our heater quickly and for $450 less than a competitors bid. Will be going to these guys for all of our plumbing needs in the future!

Becky R.

Fabulous Attention to Detail

Fabulous attention to detail…every decision is made with first rate materials. No cutting corners…great customer service!!

Sherri C.