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Slab Leak Repair Services in Seattle, WA

over 4532 reviews

Are you dealing with water pooling, strange stains on your walls, or moisture that keeps coming back no matter what you try? You may be dealing with a slab leak in your walls or under your flooring. Call 206.792.7495 for expert Seattle slab leak repair and honest, upfront pricing.

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A slab leak has the potential to cause major damage to your concrete slab foundation, so picking up the phone as soon as you spot any warning signs is always the safest choice. Even minor leaks can turn into serious water damage quickly, especially when they spread beneath flooring or flow into hidden areas of your plumbing system.

When you suspect an issue, call Gene Johnson for immediate slab leak detection using advanced leak detection technology designed to locate the exact location of the problem efficiently.

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*Diagnostic or repair services are not included. This is a no-obligation consultation for homeowners interested in upgrading or replacing their HVAC and/or heating systems. Offer applies to residential properties only and must be scheduled during normal business hours.

When you call us for slab leak repair, you can expect a professional approach that balances efficiency, care, and long-term solutions. Our experienced team follows a repair process built to protect your home and minimize disruption while delivering sustainable solutions.

From start to finish, we focus on safety, quality, and minimizing disruption. Our goal is to protect your home’s foundation and structural integrity while resolving the leak efficiently.

What Are the Early Signs of a Slab Leak that Homeowners Should Watch for?

There are several warning signs that point to a slab leak, and understanding slab leaks early can help prevent foundation damage. Homeowners should keep an eye out for the following:

  • Unexplained spikes in your monthly water bill
  • Damp spots or warm areas on floors, especially near a concrete slab
  • Water pooling in your yard or foundation perimeter
  • Mold or mildew growth in the basement
  • Reduced water pressure throughout your home
  • Sounds of running water when fixtures are off

If you notice any of these, call a professional leak specialist right away. Slab leaks can remain hidden for long periods, and the longer you wait, the more costly repairs may become due to extensive damage that spreads beneath the slab foundation.

What Usually Causes a Slab Leak in a Home?

Slab leaks usually come from a mix of aging plumbing materials, shifting soil, and water pressure issues. Over time, the water pipes beneath the concrete slab may corrode or weaken, leading to leaks under the slab foundation. Shifting soil can move the lines enough to crack them, especially if the plumbing system was subject to poor installation during construction. In some cases, water leaks do not show up for years. Whether the cause is corrosion, soil beneath the home shifting, or improper installation, professional leak detection ensures the problem is found and handled before structural integrity is affected.

How Serious Is a Slab Leak if It’s Not Repaired Quickly?

A slab leak should never be ignored. When water escapes under the slab foundation, it slowly erodes the soil beneath the home and can cause the concrete slab to shift. This can create cracks in the foundation and threaten your home’s structural integrity. Slab leaks also lead to mold growth, mildew growth, damaged drywall, and unsafe flooring conditions. Electrical systems and HVAC equipment might suffer water damage if the leak spreads far enough. By the time the first sign becomes obvious, the repair slab leaks process can be more involved. Acting quickly helps save money and prevents the problem from becoming overwhelming.

What Kind of Damage Can a Slab Leak Cause?

Most homeowners fear mold, and for good reason. Basements and crawl spaces affected by slab leaks often become breeding grounds for mold and mildew, which can create health concerns. Beyond that, slab leaks cause serious water damage to floors, walls, electrical circuits, and structural elements of the house. Rotted wood, saturated soil beneath the home, and weakened support beams are all possible outcomes. Since this kind of leak can continue quietly for months, the damage may be significant by the time someone notices. Calling for professional leak repair as soon as hidden leaks are suspected helps prevent costly repairs later.

How Long Does It Take to Repair a Slab Leak?

Repair time varies because slab leak repair depends on the severity of the leak, the exact location, and the chosen repair method. Some minor leaks can be repaired in a single day, especially if they are easy to access. More complex cases, such as rerouting water pipes or replacing large sections under the concrete slab, can take several days.

Factors like accessibility, trenchless options, pipe lining, or flooring removal may also affect the timeline. The good news is that professional plumbers prioritize minimizing disruption and explaining the steps clearly so you always know what to expect throughout the repair work.

Can Slab Leaks Be Prevented, or Are They Just Unavoidable?

While some slab leaks occur naturally over time, homeowners can still take preventive measures to reduce the risk. Regular plumbing inspections help catch small issues before they become hidden leaks. Maintaining healthy water pressure prevents pipes from weakening prematurely. If your home contains outdated plumbing materials, upgrading to modern piping may help prevent future leaks entirely.

Watching your water bill closely also helps because an unexplained increase is often the first sign of trouble. Prevention cannot guarantee that slab leaks will never happen, but it significantly reduces the chance of extensive damage.

Do You Offer Emergency Slab Leak Repairs?

Some slab leaks cannot wait. Emergency plumbing situations like slab leaks, open pipe leaks, or major pipe bursts under a concrete slab need immediate attention before costly damage spreads.

Thus, we offer 24/7 plumbing emergency response throughout Seattle, WA, so homeowners never feel left alone during a crisis. When you hear running water beneath the floor or notice mildew growth, warm spots, or sudden flooding, we respond quickly with advanced tools and a plan to stop further damage.

Why Choose Gene Johnson for Expert Slab Leak Repairs

Seattle homeowners want trustworthy, efficient service when dealing with plumbing issues beneath their concrete slab. Our company specializes in understanding slab leaks and providing reliable solutions backed by professional leak detection, advanced tools, and experienced technicians.

  • Accurate leak detection using specialized equipment and advanced leak detection technology.
  • Skilled technicians trained to repair slab leaks safely and efficiently.
  • Minimally invasive repair options that prevent unnecessary demolition and protect flooring.
  • Transparent pricing and honest repair options explained clearly.
  • High-quality materials used for long-lasting repairs and sustainable solutions.
  • Fast, responsive service focused on customer satisfaction and protecting structural integrity.

We strive to deliver reliable slab leak repair services that keep your home’s foundation safe. Our team works carefully, communicates openly, and ensures every repair process is completed with the highest level of professionalism.

Dealing With a Slab Leak Emergency? Call Gene Johnson Now!

A slab leak can go from inconvenient to overwhelming in a short period of time. Once water begins seeping beneath your home’s foundation, the damage spreads fast, impacting flooring, electrical systems, and even the structural integrity of the building. Quick action is important because delaying repairs may increase repair costs drastically.

Our experienced team at Gene Johnson is available whenever you need fast help. We offer emergency slab leak repair services throughout Seattle, responding with advanced tools and an experienced team trained to stop further damage. Whether it is late at night or during a weekend, we act quickly to find the leak, repair it, and stabilize the situation. Do not wait until the problem escalates; call us right away.

When you call 206.792.7495 in the Seattle, WA area, Gene Johnson Heating, Cooling, Plumbing, and Electrical will send a licensed plumber to take care of the problem immediately!

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The best plumbing, cooling, heating, and electrical services shouldn’t have to break the bank. That’s why we are happy to provide our customers with opportunities to save on their next service with us. Our current online deals are updated periodically, so there is something for everyone, whether you are a first-time customer or a long-time loyalist.

Here are some benefits of trusting Gene Johnson with your HVAC, Plumbing, and Electrical needs.
  • Best value service in Seattle
  • Always on-time arrival
  • No mess left after a job
  • Friendly team that truly cares about your safety and comfort
  • Fixed right guarantee
  • Upfront pricing
  • Follow up calls to ensure your peace of mind
  • Range of service options- no ultimatums!

Total reviews: 4532 | Average rating: 4.8

5

We had a new installation of a tankless hot water heater by Steven Fritz today and it was an amazingly painless and actually interesting procedure! He was very thorough and explained things fully and carefully and got the job done in a single day. Really impressive!

5

We discovered very early in the morning that our hot water tank was leaking. I called Gene Johnson plumbing. The scheduler was efficient and thorough. About 15 minutes after I ended that call I received one from Pavel along with an email that he was on his way. He assessed the situation and got right to work. We now have a very functional new hot water heater, thanks to Pavel and Nathan. They were very knowledgeable and professional. Would happily recommend their services to friends and family.

5

Jaren came out today to fix our bathtub, which was significantly clogged. This was my first-ever experience calling a plumber, and it was terrific from start to finish. The person I spoke with to book was friendly and efficient. They were able to get me in the same day, and I appreciated receiving a text letting us know when the plumber would arrive, along with a picture of who would be coming. I also appreciated Jaren calling us to let us know he was going to be early and to check with us if that was okay. Jaren was kind, patient, and knowledgeable. He did a fantastic job all around. He had excellent communication with us and our HOA, and this was the best experience I’ve ever had with someone coming into my home for repairs. I am so happy my bathtub is back to normal, and I will recommend Gene Johnson to any of my friends and family. Jaren honestly made a nightmare situation manageable and even pleasant! Thank you again so much!

5

Your company has been here before! Great people! Great service ! Waiting for you guys now 👍

5

Gene Johnson is incredible to work with. They assigned me a human customer care rep through text message named Samara who has been so amazingly helpful and caring during this whole frustrating leak process. Our technicians Greg and Rory who visited us a few different times were simply amazing, so understanding, and always helpful with an extremely positive attitude even when new issues arose. Tyler, the waterline team leader and expert, was so accommodating and understanding and made sure to set things up for me with Samara for an effortless scheduling experience on my end. Gene Johnson made me feel like family. Thank you so much. ❤️

5

Joe did a ton of investigative work and labor to address a pressure, pipe/water tank, and vent installation issue in our home. He is super knowledgeable and walked us through each step, with great tips for general maintenance along the way. Top notch professionalism and quality work!

5

Mark Ochoa was exceptional, showed up early and helped me in a bind. Would recommend without hesitation. Good to know who you can count on when needed

5

We’ve been with Gene Johnson for years, going back before the mergers. The service continues to be top notch. We recently signed up for the yearly membership and feel we are getting our money’s worth. Just got our first full plumbing inspection and are very glad to have the peace of mind to know what does or doesn’t need attention. The expertise of the staff is excellent, with a special shout out to today’s technician, Mark Ochoa, who was both knowledgeable and pleasant. Thank you kindly!

5

I am so used to people trying to upsell me that I was pleasantly surprised when Derek, our technician, gave exceptional service with zero upsell. So greatly appreciated. The seeds of future business have been planted, as when my next plumbing need arises, I will be calling Gene Johnson and asking for Derek.

5

They provided prompt service to hook up new utility sink lines to my copper pipes. Andrew was professional and communicated well before, during and after the service. I would defuse them again!

5

Mark Ochoa did a fantastic job unclogging a stubborn blockage behind a washer. The plumbing made it hard to get to the problem, but he kept working on it until the issue was addressed. Nice to have that taken care of.

5

Gene Johnson Plumbing were great in responding to my problem within 24 hours and had it fixed next day! Jaren was a great help and had an answer for all my plumbing questions.

5

Steven provided top notch service and did great work! Quickly diagnosed and resolved this issue.

5

I had a great experience with Gene Johnson when I needed plumbing work done. My technician, Jeff Freeman, was professional, polite, and extremely knowledgeable — I really appreciated the quality of his work and how friendly and professional he was.

I also liked receiving a heads-up text and phone call with the estimated arrival time. The dispatch team was polite and professional as well, which made the whole process smooth and stress-free.

I will highly recommend this company!

5

We have a 14 yr old water heater I needed service. Taras (technician) was knowledgeable helpful and offered good advice on potential issues ahead.

5

Really appreciate the knowledge and expertise provided by Jaron. He was quick to diagnose the problem, efficient at unclogging the main line and a pleasure to work with. I have a good working knowledge of plumbing and I found Jaron to be honest and not looking to just drain my wallet.

5

Same day service, super friendly, super fast. Will definitely hire them again.

5

Rene was extremely professional, knowledgeable and perseverent. He unclogged my kitchen drain that was not easy. He kept at it, with many ideas and tries. Finally he got it. He did not give up. He was also very personable. I highly recommend him. He also found my leak that I had been trying to find for a month! It’s fixed, too.

5

They worked quickly efficiently and cleaned everything up and beyond.

5

Three days before Thanksgiving our kitchen sink drain line gave out. After installation of new cleanout and camera work by a super nice crew ( I think Daniel and George) a few days prior Gabriel, Eugine and Allan worked tirelessly into the evening removing concrete slab to expose deteriorated drain line, installing new ABS drain line, bedding, backfilling and placing new concrete. They kept the room with work clean. Placed protection over wood and vinyl flooring and plastic and plywood in garage for old concrete and gravel. Once finished with the installation they cleaned everything up and you could not even tell they had been hauling gravel, dirt and mixing new cement to patch the concrete floor. Everyone involved at GJP was great to work with.