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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

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Oaktree President

22:17 24 Oct 25

Our house decided to replace our own toilet, but we got stuck halfway through because we didn’t have the right tools and accidentally broke an anchor bolt. I called 2 Sons Plumbing, and they showed up within an hour to help us out. Derek, our plumber, was super friendly, explained everything clearly, and got the job done quickly and professionally. Excellent service all around—highly recommend!

Oaktree President

22:17 24 Oct 25

Victor Garcia

20:12 23 Oct 25

Dave and David came and cleared out a huge clog in my kitchen sink (both sides) that has been plaguing us for a while as well a ton of glass shards that got into the drain when our glass fridge shelf broke. Dave walked us through each step of the process and explained everything which was excellent. He also gave us advice about galvanized piping replacement. They even gave us a few free parts for the sink drain that had eroded away and didn’t charge extra for it!! All around 5 star service!!!

Victor Garcia

20:12 23 Oct 25

Steve P

20:40 21 Oct 25

Fantastic service and communication. Local company. Solved my clogged basement laundry utility sink. Dave and David were courteous, informative, professional and easy to engage with. Scheduling was easy (they came the next day) and they arrived within the expected time window. Transparent pricing and i could also apply a coupon. I will use them again.

Steve P

20:40 21 Oct 25

Ashton Wylde

05:46 21 Oct 25

Great service and Dave their plumber is the best. We have an odd house with even odder plumbing. The pipes are a mess of grandfathered-in open air nonsense, when our pump started making some noises (and a little leaking) after some DIY heat tape adventures (getting ready for colder weather), we were worried that we would need a massive repair but Dave came and looked at it and immediately realized we had unplugged the float plug from the pump plug which was 90% of the problem and the leak just need a little tightening of a flex joint. The company was quick and didn't charge for an estimate or in this case a quick "thats not plugged in right". The experience and the overall professionalism has convinced me that when I do finally need that big repair job, I'll call these guys.

Ashton Wylde

05:46 21 Oct 25

Spencer Charles

05:07 20 Oct 25

Booking an appointment was extremely easy, and we were able to get one just the next day. Communication was excellent with timely reminders and a call before our appointment. Kerry did a fantastic job both advising us and effectively resolving our issue.

Spencer Charles

05:07 20 Oct 25

LuAnn Mitchell

02:38 14 Oct 25

I have all good things to say about 2 Sons Plumbing. My first experience was a few years ago and the whole process went very smoothly. Making the appointment was easy and quick, the repair was done with no problem and I thought the price was fair. Recently, Dave from 2 Sons came out to look at several plumbing problems I was having and, within a matter of minutes, all of the problems were diagnosed. Dave gave me options and estimates all before he left my house. I haven’t had the work done yet but appreciate the information and the prices seemed fair to me. Dave was on time, professional and very knowledgeable. 2 Sons are my go to Plumbers.

LuAnn Mitchell

02:38 14 Oct 25

Kayla Huitt

16:58 13 Oct 25

Bob at 2 Sons Plumbing was amazing! We had a horribly backed up kitchen sink drain and he was able to fix it, and save us some money in the process! He heard what we had to say about our issue and double checked everything. Super friendly and very helpful. Thank you for the amazing work Bob!

Kayla Huitt

16:58 13 Oct 25

Mingmin Zhu

00:31 11 Oct 25

I had great experience with Chase, Riley, Seth, Manu, Nolan with a recent fix. They showed up promptly, transparent about the price upfront, set the expectations right, very professional, got things done perfectly, great communication and very honest and patient to answer all my questions, I will definitely use 2 sons again and will recommend it to my friends and neighbors.

Mingmin Zhu

00:31 11 Oct 25

Arul Menezes

00:41 10 Oct 25

Stellar job by Carey and his team at 2sons today. I had a complex job -- installing a yard hydrant/faucet for a garden across the (private) street. They had to go into the floor of the garage, run piping under the floor, out of the house, across the road. Had to cut into the asphalt, trench down a couple feet, then patch it all up again, including fixing the garage concrete floor. Super job. Looks really clean. Got it all done in a day.

Arul Menezes

00:41 10 Oct 25

First Name

00:04 10 Oct 25

A wonderful experience every time with 2 Sons plumbing. Jake and Angelo helped us with our plumbing issue. They showed up on time and gave a very reasonable estimate for the repair. We ended up replacing a couple of toilets and a part of a sink drain. They came back the next day to complete the work due to our schedule. Excellent communication, prompt, and hard working! Thank you so much Jake and Angelo!! We are very happy with 2 Sons and have used them multiple times.

First Name

00:04 10 Oct 25