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Why Does My Faucet Drip Even When Turned Off?

That constant drip, drip, drip from your faucet can drive you nuts. It always seems louder at night when the house is quiet. And while it may not seem like a big deal, every drop adds up—wasting water and bumping up your utility bill.

If your faucet in your Bellevue home keeps leaking even when you’ve shut it off tight, chances are something small inside has worn out. At 2 Sons Plumbing Bellevue, we see this every day. The good news? Most of the time, it’s a simple fix.

Why Faucets Start Dripping

Faucets are built to shut water off completely. But over years of use, the little parts that seal the water inside wear down. Here’s what usually causes the problem:

The Washer’s Worn Out

Older, compression-style faucets use rubber washers to stop the water flow. Eventually, that washer flattens, cracks, or gets too stiff. Once that happens, water sneaks through and the dripping starts.

The O-Ring’s Shot

Many faucets have a small rubber O-ring around the stem or handle. When it dries out, cracks, or loosens up, water can leak from the spout or even around the handle.

The Cartridge’s Failing

Modern faucets often use a cartridge to control water flow. If it’s worn or damaged, the faucet might drip no matter how tightly you shut it off.

Quick DIY Fixes You Can Try

If you don’t mind getting your hands dirty, you might be able to stop the drip yourself:

Shut off the water: Look under the sink and close the supply valves so you don’t flood the cabinet.
Take the faucet apart: Remove the handle to get to the washer, O-ring, or cartridge.
Swap out the part: Bring the old piece to the hardware store and buy the exact match. Pop it back in and reassemble the faucet.

Most Bellevue homeowners can do this for $10–$40 in parts. If you’re handy, it’s worth a shot.

When It’s Time to Call a Plumber

Not every drip has an easy DIY fix. If you notice water leaking under the sink, heavy corrosion around the fixture, or if you’ve already tried replacing parts and it still drips, it’s time to call in a pro.

At 2 Sons Plumbing Bellevue, we’ll check the faucet, find the real cause, and repair or replace it. Professional repairs usually run $150–$300, depending on the faucet type and what needs to be done.

Why You Shouldn’t Ignore a Drip

A leaky faucet might seem like a minor annoyance, but it can waste hundreds of gallons of water every year. That’s money literally going down the drain. Fixing it sooner not only saves water, it prevents wear and tear on the faucet and surrounding plumbing.

The plumbers at 2 Sons Plumbing Bellevue fix leaky faucets every single day. Call us today at (206) 487-1757 for faucet repair in Bellevue. We’ll stop the leak, save you money, and give you back some peace and quiet.

2 Sons Plumbing, Electrical, Heating & Air

4.9

Based on 3412 reviews

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Beth

00:02 27 Nov 25

2 Sons Plumbing is a top notch company. Recently I had a water line hooked up for a new refrigerator and Justin and Bryce were my technicians. They were so competent, careful, and efficient and I really appreciated their professionalism. Justin even showed me how to use the displays on the new fridge. They made sure every thing was clean, the lines flushed and working before they left the house. Their pricing is extremely reasonable also, I got two quotes for installing the waterline and 2 Sons was the most reasonable. Last year I had a clogged kitchen drain during the Christmas holiday's and 2 Sons Plumbing was the only company that would come out right away and not charge a high holiday rate. I highly recommend 2 Sons Plumbing for any plumbing needs.

Beth

00:02 27 Nov 25

Russell Callender

18:28 23 Nov 25

This is the second time I used 2 Sons Plumbing. This project was to install a toilet. Like the first time, the toilet installation went flawlessly. The support from Autumn and the other folks in the front office made scheduling easy and they were able to reschedule it to meet some changing circumstances on my end. I requested Brandon to do the work as he performed my previous job. He also recommended a high quality toilet that worked in my situation. I was called and texted to let me know he was coming. He was fantastic and explained how he was going to do the work and showed me the conditions of my existing connections. He got it done very quickly and efficiently and did not leave any mess. I’m super impressed with how this company operates.

Russell Callender

18:28 23 Nov 25

Maria Kute

23:01 18 Nov 25

Thank you, Bob, for your professional, courteous, and kind service! My downstairs tub was running with high pressure due to some worn out stems. Bob was thorough—but unfortunately our fixtures are quite old, and he didn’t have appropriate replacements available the first day. However, they were able to find the appropriate stems for our tub and fixed the leak right away day 2. I cannot speak highly enough about how grateful I am for the way 2 Sons accommodated my schedule when they needed to return with the appropriate fixtures. The technician was a genuine joy to work with—and I appreciate the quick follow up and turn around. I also appreciate the way Bob walked me through the process and double checked for leaks.

Maria Kute

23:01 18 Nov 25

Evan Rose

16:17 18 Nov 25

We had a great experience. Brandon and Chris were very polite and professional. We had a massive leak under a toilet and they came and fixed it on a Saturday. They were very timely and hardworking. Ethan was another who was also very polite and professional. Pricing was also very manageable for the extent of the problem we had. I would highly recommend.

Evan Rose

16:17 18 Nov 25

YuliyaG

22:06 14 Nov 25

I had a great experience with 2Sons Plumbing. Communication was on point from start to finish. Dave arrived on time, was very friendly, and knowledgeable. He also gave me a helpful heads-up about our heater and offered great advice. I really appreciate the professionalism and will definitely use them again!

YuliyaG

22:06 14 Nov 25

Brandy Przybylak

19:28 05 Nov 25

We really enjoyed our experience with 2 Sons. We had an emergency that had water all over our kitchen and basement. They were able to send someone out later in the evening for us after several other companies either cancelled on us or said they couldn't come until the next day. Our technician/plumber Riley was great to work with - friendly, quick, and effective! They even gave us a call back a few days later to check in on our experience and to answer some extra questions we had. Highly recommend!

Brandy Przybylak

19:28 05 Nov 25

Carol Wong

19:21 04 Nov 25

I have not decided to go with 2 Sons for the plumbing issues I have yet. However, I am very impressed by the technician, Guy, who came for the appointment. He was professional, friendly, knowledgeable, courteous, and thorough. I told him that I was just getting a quote and not ready to commit to do the repair right away. He was very understanding. I have a clogged kitchen sink, disconnected washer hose causing water damage, and likely a disconnected pipe behind the wall. He explained the steps I need to take before he can help for all three issues. Like I should hire the restoration company to repair the water damage before reconnecting the pipes. He also helped to take pictures and referred me to a restoration company for the jobs outside of his scope. Before he left, he measured the water pressure to make sure the pressure is within a normal range. Just to make sure the water is not putting too much pressure on the fixtures resulting leaks. It was definitely a surprisingly pleasant and thorough experience with Guy.

Carol Wong

19:21 04 Nov 25

Joanne Chan

01:00 31 Oct 25

Excellent service from 2 Sons Plumbing – highly recommended!

We recently had 2 Sons Plumbing come out to fix several issues at our place. We couldn’t be happier with the results. Marcos and Chris were absolutely fantastic — professional, knowledgeable, and very thorough in their work. Every single job was done with precision and care.

Marcos and Chris took the time to explain what they were doing, answered all our questions patiently, and made sure everything was up to code and functioning perfectly before they left. They worked efficiently, left the area spotless.

It’s rare to find such reliable, honest, and detail-oriented professionals these days. I wouldn’t hesitate to recommend them to my friends and neighbors.

Joanne Chan

01:00 31 Oct 25

Jurusha Emerson

16:11 28 Oct 25

I called 2 Sons Plumbing and was able to get them to come out to the house the very next day. The over the phone customer service were very personable and friendly. On the day of my appointment, Bob was the one sent to our house to fix our kitchen faucet. Bob was extremely friendly and helpful in fixing my faucet. He was very considerate and quick with his work. I did not feel like I was being taken advantage of or overpriced as far as how much they were charging. Bob was always transparent with the cost and also trying to find the most cost-effective way to accomplish what needed to get done? I would recommend 2 Sons plumbing to anyone who needs plumbing service. 2 Sons plumbing has a gem for an employee (Bob). If I were to call 2 Sons plumbing again for service, I would definitely want to request Bob as my priority person.
Thankyou so much

Jurusha Emerson

16:11 28 Oct 25

Mackenzie Maynes

02:22 28 Oct 25

After the recent power outage I discovered that my combi-boiler went on the fritz, meaning no hot water and no heat in my home—a very chilly situation for Seattle fall. 2 Son’s was so friendly and able to send out Adam same-day which was a huge relief! Adam quickly assed the issue, fixed it and provided a thorough explanation of what he did to get the system up and running again (which I deeply appreciated). I am thoroughly impressed by his knowledge of these units; turns out the pressure reducing valve on my machine also needs to be replaced, which explains why my water pressure has always been a bit funky between hot and cold. Adam provided an affordable proposal for a future repair to my unit for optimal functioning. Would absolutely recommend Adam and 2 Sons!

Mackenzie Maynes

02:22 28 Oct 25