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Areas We Serve

How Do I Know If I Have a Slab Leak?

You’re walking barefoot across the floor and suddenly stop—there’s a warm spot that wasn’t there yesterday. You brush it off, thinking maybe it’s just the sun or the heater. But then your next water bill shows up, and it’s higher than usual. A few nights later, when the house is quiet, you hear it—a faint hiss, like water running somewhere it shouldn’t be. That’s when it hits you: something’s happening under the floor.

That’s how it starts for a lot of Tacoma homeowners. A slab leak creeps in slowly. Weeks, sometimes months, before you realize it’s there. By the time you notice the signs, it’s already been working quietly under your feet.

At 2 Sons Plumbing Tacoma, we’ve seen how quickly a small leak can turn into a big headache.

Signs You Might Have a Slab Leak

Slab leaks don’t always scream for attention—they whisper. A few clues can give them away:

Your water bill is creeping up even though nothing’s changed.
You feel warm or damp spots on the floor. Usually from a leaking hot-water line.
You hear running water when everything’s turned off.
You notice cracks in tile, flooring, or walls.
Your carpet or flooring feels damp.

If any of that sounds familiar, it’s time to start checking.

A Few Things You Can Do Yourself

You don’t need fancy tools to spot the signs of a slab leak. Here’s what you can do:

Turn off everything that uses water. Sinks, showers, appliances—everything.
Check your water meter. If it’s still spinning, something’s leaking.
Walk the floor barefoot. Hot spots or damp patches usually point to the leak’s location.
If you find water pooling or the leak seems to be spreading, turn off your main water supply. That can buy you some time and keep things from getting worse.

When to Call a Plumber

Once you suspect a slab leak, don’t wait it out. It won’t stop on its own. These leaks keep running, slowly washing away soil under your foundation.

At 2 Sons Plumbing Tacoma, we use non-invasive tools to locate the exact spot of the leak—no tearing up floors, no guessing. Once we know where it is, we’ll explain the best fix, whether that’s sealing the leak, rerouting the line, or replacing the damaged section.

We treat every home like it’s our own—carefully, quickly, and without surprises.

What It Might Cost

Finding a slab leak in Tacoma usually costs between $300 and $600. Repairs can range from $1,000 to $5,000+, depending on how deep the leak is and what kind of piping you have. It’s not pocket change, but it’s far cheaper than repairing foundation damage or mold later.

Call 2 Sons Plumbing Tacoma

If you’ve got warm floors, a rising water bill, or that weird running-water sound, don’t ignore it. Those are your early warnings. Call 2 Sons Plumbing Tacoma at (206) 487-1757.

We’ll track down the leak, fix it the right way, and help you stop worrying every time you take a step on your floor.

2 Sons Plumbing, Electrical, Heating & Air

4.9

Based on 3327 reviews

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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

Erica G.

00:11 09 Oct 25

Brandon and Ethan were awesome. I had a basic plumbing issue that I was too scared to address myself. They were very non judgmental and provided excellent customer service. I totally recommend 2 Sons Plumbing.

Erica G.

00:11 09 Oct 25