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Plumbing, HVAC, & Electrical emergencies happen when you least expect them. The pros at South West Plumbing can fix any issue quickly. Contact us today at (206) 932-1777 to request 24/7 emergency services!

Undetected water leaks can severaly damage your home and rack up costly utility bills — without you suspecting anything. That’s why homeowners in Seattle and the Puget Sound area trust South West Plumbing, Heating, Air & Electric for expert plumbing leak detection and repairs.

With licensed, insured, and background-checked technicians, upfront pricing, and same-day service, we make it easy to protect your home from hidden leaks.

Think you might have a leak in your Puget Sound home? Contact South West today for expert leak detection and repair services.

Why Leak Detection is Crucial for Your Home

Not all leaks are obvious. Hidden behind walls, under floors, or beneath your home’s foundation, some leaks can go unnoticed for weeks or even months. Over time, they can lead to structural damage, mold growth, and higher water bills. That’s why professional leak detection is essential — it finds the problem early before it becomes an expensive disaster.

Signs You Have a Plumbing Leak

Even if you can’t see a leak, there are often warning signs. Identifying these early can help you avoid water damage, protect your property, and reduce repair costs.

  • Unexplained increase in water bills: A sudden spike in your water bill often signals a hidden leak.
  • Musty or damp smells: Persistent odors can indicate mold or mildew caused by leaking water.
  • Visible water damage: Stains, bubbling paint, or warped flooring are common signs of a hidden leak.
  • Mold or mildew growth: Moisture from leaks creates a perfect environment for mold.
  • Running water sounds: If you hear running water when no taps are on, it could mean a pipe is leaking somewhere.
  • Low water pressure: Leaks can reduce the water pressure at your fixtures.
  • Water heater issues: Puddles or foul odors around your water heater, rust or corrosion anywhere on the unit, and inconsistent hot water can all be signs of a leak.

How Our Plumbers Detection & Repair Leaks

At South West, our expert team uses advanced technology to locate the source of a leak with pinpoint accuracy. From slab leak detection to pipe inspections, we rely on tools like video camera inspections to assess your plumbing system without causing unnecessary damage to your home.

Once the leak is located, our experts will recommend the most effective repair method and resolve the issue quickly to protect your home and restore your peace of mind.

Schedule Leak Detection & Repair in Seattle

With over four decades of experience and a team of highly trained technicians, South West is the trusted name for plumbing services in the Puget Sound area. We offer same-day service, no overtime charges, and free estimates on replacements.

We service all brands and provide flexible financing options, along with military, veteran, and senior discounts. Our goal is simple: to deliver top-tier service with professionalism and care on every call.

Contact our team today to schedule leak detection services in Seattle.

Water Leak FAQs


Professional leak detection is highly accurate, thanks to advanced tools like acoustic sensors and video camera inspections.

Start by checking under sinks, around toilets, behind appliances, and in areas with visible water damage or mildew smells.

If left untreated, even a small leak can lead to major problems, such as mold growth, structural damage, and costly water bills.
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Repair & Install All Makes & Models
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Our Reviews

See What our customers Are Saying

Clogged pipe and lots of plumbers were booking a week out - Worked with South West Plumbing to find a crew in the area just finishing up another job and arrived asap! Great service and very clean work. They have great advice and lots of camera footage showing the health of our plumbing and how to manage. It is a 2 way relationship and the…

Phil B.

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Phil B.

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Abel and Daniel were amazing! They were there the next day to assess the water heater. They came with a big truck of supplies and were able to install what we needed the same day. They had professional uniforms with name badges. They wore shoe covers and placed floor protection down so they kept my house clean! Would call them again anytime. Thank you for…

Miranda E.

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Miranda E.

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Garrett and Stephen came out and quickly and professionally replaced our 70-year-old sewer plumbing after it cracked. They worked super hard and ensured we had working plumbing each night and through the weekend. They finished and cleaned up and I would highly recommend them.

Valentin B.

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Valentin B.

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Chris was a very professional, knowledgeable, polite and patient plumber. They said he'd be here within the hour, he was here in 20 minutes. Pieces were missing from our brand new toilet to be installed, he was willing to take his lunch and allow us the time to run to Home Depot to exchange the toilet. Once we had all the parts, he installed it…

Samantha B.

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Samantha B.

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We had issues with our water heater, so we called South West Plumbing and they came out to save the day! Abel and Daniel were the best; they thoroughly discussed our options and replaced our water heater the same day! They were professional and thoughtful while installing new water heater inside our home. Highly recommend!

Mario Z.

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Mario Z.

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