Los Gatos Leak Detection
Family Owned & Serving Santa Cruz Since 1984
Los Gatos Leak Detection
Family Owned & Serving Santa Cruz Since 1984
Flexible Financing Available Through GreenSky
Don’t Let Cost Stop You From Getting It Fixed
Plumbing problems don’t wait — and now, neither do you. We offer flexible payment plans so you can get the work done today without the financial stress.
Water Leak Detection Los Gatos, CA
When you are looking for someone to find your leak, call on the skilled plumbing staff at Rosenthal Plumbing. We’ll get your water leak detection in Los Gatos, CA completed in no time so you can get your leak fixed fast. Stop wasting time and money looking for your leak and let our Los Gatos plumbers use their top-of-the-line technology to get it taken care of fast.
Here to Help You Get Started
Request a FREE Estimate
At Rosenthal Plumbing, we offer free estimates for all your plumbing service needs, ensuring you get the best value and clear pricing before any work begins. Request a free estimate online or call today!
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We’re Happy to Help
Not sure about a quote you got from another company? Plumbing work can feel overwhelming, especially when the numbers feel ambiguous. We’ll take a look, give you our honest take, and help you figure out what makes sense for your situation.
Our Los Gatos Services
Not sure if you have a water leak or a different problem?
Here are some signs that you may need to find a leak soon.
- You hear the sound of moving water even when everything is turned off. You shouldn’t hear it if you’re not using it.
- Your water meter moves even when you’ve turned off the water to your home. Make sure you turn off your main water valve before you check this.
- You see or smell mold or mildew without another explanation. Or, you have returning mold or mildew that won’t go away.
- You see water or evidence of dried water where there shouldn’t be any. Even dried water spots can indicate a leak and should be checked out.
- Your foundation is cracking and you don’t know why. There are several reasons why a foundation can crack, but leaking water is definitely one.
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Your Plumbing Experts
For more than three decades, Rosenthal Plumbing has been the go-to source when property owners need a reliable Santa Cruz plumbing company. We provide a wide range of quality plumbing services in Santa Cruz, CA, from repairs and maintenance to installations and replacements.
About UsHow can I tell if I have a hidden water leak in my Los Gatos home?
Hidden leaks are tricky because the damage often builds up behind walls, under floors, or underground long before you notice anything obvious. But there are several warning signs Los Gatos homeowners can watch for. One of the clearest is an unexplained spike in your water bill — if your usage habits haven’t changed but the bill keeps climbing, water is going somewhere it shouldn’t. You can also do a simple water meter test: turn off every faucet, appliance, and fixture in your home, then check your water meter. If the meter is still moving, you have a leak somewhere in the system. Beyond that, pay attention to the sound of running water when nothing is turned on — you shouldn’t hear it. Musty smells, persistent mold or mildew in areas that should be dry, unexplained damp spots or discoloration on walls and ceilings, and warped or buckled flooring are all signs of hidden moisture. In more serious cases, you might even notice cracks forming in your foundation, which can be caused by a slab leak eroding the soil beneath your home. If any of these signs sound familiar, don’t wait — the longer a hidden leak goes unaddressed, the more damage it causes. At Rosenthal Plumbing, we use advanced leak detection technology to pinpoint exactly where the leak is without tearing your home apart.
How does professional water leak detection work, and why can’t I just find the leak myself?
It’s a fair question. Some leaks are easy to spot — a dripping faucet, a puddle under the sink, a running toilet. Those you can often identify on your own. But the leaks that cause the most damage are the ones hidden inside walls, beneath concrete slabs, underground in your yard, or in pipes running through crawl spaces you can’t easily access. Finding these without professional equipment usually means guessing, cutting holes in walls, or digging up sections of yard — which is expensive, time-consuming, and often inaccurate. Professional leak detection is a completely different approach. At Rosenthal Plumbing, our Los Gatos plumbers use specialized, non-invasive technology to locate leaks with precision. This can include acoustic listening devices that amplify the sound of water escaping from a pipe, thermal imaging to detect temperature differences caused by moisture behind walls, and electronic line locators to trace pipe routes underground. These tools allow us to zero in on the exact location of a leak without unnecessary demolition. Once we’ve found it, we’ll explain exactly what’s going on and walk you through your repair options with a clear plan and upfront pricing. The goal is to save you time, money, and the headache of guessing.
Can a water leak damage my Los Gatos home’s foundation, and how urgent is it to get it fixed?
Yes — and this is one of the reasons we always encourage homeowners to take suspected leaks seriously, even if the signs seem minor at first. A slab leak (a leak in the water or sewer lines running beneath your home’s concrete foundation) is one of the most damaging plumbing problems you can face. When water continuously escapes under or around the foundation, it saturates the soil and can cause the ground to shift, swell, or erode unevenly. Over time, this puts stress on the concrete and can lead to visible cracks in your foundation, uneven floors, doors and windows that stick or won’t close properly, and even structural instability. Los Gatos homes built on hillsides or with older plumbing are especially vulnerable, since the combination of soil movement and aging pipes creates a higher risk of both leaks and foundation-related damage. Beyond the foundation, hidden leaks promote mold and mildew growth inside walls and under floors, which can affect indoor air quality and become a health concern. They also waste a significant amount of water, driving up your utility bills month after month. The bottom line: if you suspect a leak — whether from a rising water bill, the sound of running water, damp spots, or foundation cracks — getting it detected and repaired quickly is one of the smartest investments you can make to protect your home. At Rosenthal Plumbing, we’ll find the leak fast using non-invasive technology, and we’ll work with you to fix it before the damage gets worse.
Reviews From Your Community
Mario did a great job. He listened to our concerns carefully and kindly, reviewed options, took our needs into consideration, and explained things well. He was thorough and efficient and left things as clean as he'd found them.
Thanks for responding so quickly & for sending such an excellent plumber. The work was thoroughly explained & quickly completed. I will use Rosenthal plumbing for all my plumbing needs.
I woke up to find my downstairs ceiling dripping water. The leak was coming from my upstairs bathroom. I went into full panic mode. I called Rosenthal Plumbing and explained what was going on. Due to the urgency of my situation, the dispatcher Selina, contacted Mr Raffael
Just had Alex fix our sink drainage problem. He did an excellent job explaining and solving the issue. highly recommend
When you wake up in the morning with no hot water. You might think it is going to be a bad day. However here in Santa Cruz, we have miracle workers in the form of the awesome technicians at Rosenthal Plumbing. Our water heater, drains, and lines were so old they were amazed it
Tech did a great job. Job was done within 2-3 hours. Very professional
They provided excellent, quality service for my family. A free estimate was provided after a thorough evaluation and explanation of the work needed with various price options. More transparency in itemized cost should have been offered but otherwise, the experience and knowledge
Alexander came promptly to address a leak in the water supply filter system. He thoroughly assessed the situation and checked on the bathroom and kitchen plumbing. He was quick and professional and did a great job fixing the leak and installing a new, upgraded water filtration
Alexander was fantastic. Discovered damage we didn’t know about and fixed everything in a single afternoon. Would have been structural floor damage in our very near future if he hadn’t carefully checked everything. Provided 3 different detailed solutions/costs for the full job.
Josh was very helpful and efficient in clearing the drain lines from my house to the main sewer line. He diagnosed the problem and ran a camera to give me the bad news of roots and collapsing old pipes. I have complete confidence in his work and he was a pleasure to meet and
Mario, was Fabulous! He explained everything to me with all my options. I Will definitely call again and ask for Marie. He was very professional along with being very courteous. Thank you for coming out so quickly, that was much appreciated.
Called in the morning and had an expert coming to my place a few hrs later. The technician, Joshua Obert, was knowledgeable, friendly and very professional . He did not rest until he found and fixed the problem. I could not be happier with his work. Highly recommended!
Anthony is an excellent job explaining every bit of work that needed to be done. I was impressed with the work that was done along with the fact they were able to get it done with same day notice! Highly recommend and will definitely be back in the future!
I just moved here into an older mobile home that needed major repairs, Ian and Travis replaced my water piping and water heater and some other plumbing issues. They are rock stars and did an awesome job! I highly recommend Rosenthal Plumbing, they also offer financing for the
Josh from Rosenthal Plumbing was super pleasant to deal with and did an outstanding job servicing my tankless water heater. He also gave me recommendations for future care to help my equipment last longer. It was easy to schedule my appointment with Rosenthal too. I'm glad that
I am writing to express my sincere appreciation for the exceptional service provided by Brandon during his recent visit to our facility. It was a pleasure to have Rosenthal Plumbing on-site again. Brandon’s work is distinguished not only by its high quality but also by the
I am writing to express my sincere appreciation for the exceptional service provided by Brandon during his recent visit to our facility. It was a pleasure to have Rosenthal Plumbing on-site again. Brandon’s work is distinguished not only by its high quality but also by the
Josh called before coming and then arrived on time. I’m usually a bit uptight when workmen are at my home but It was really nice to have him around. He explained everything in detail and gave me several options to choose from. All of them were practical and worthy of
I'm a 75 year old retired general contractor that couldn't be any happier with the experience. From starting the service experience online, the follow thru from the office, to the work performed by Josh, the technician. Keep up the good work
Prompt, professional communication to set up the appointment with an introduction to my assigned technician, Mario, via his Bio before he arrived, complete with a photo. Mario was amazing in helping fix our plumbing issue. He walked me through the different options and helped me
The contractors renovating our house installed our new household water softener, but it wasn't working and they couldn't figure it out. Anthony, from Rosenthal Plumbing, came and was very detailed and methodical in his diagnostic approach, which I really appreciated. Within 15
Everyone was friendly and professional. The dispatcher was accurate in the timing of appointment and Josh took care of our problem. He was very thorough and even took the time to other areas of our homes plumbing. He explained everything he was doing and was happy to answer any
Josh came out this morning, checked out the issues and also found few other items that needed attention. On site, prepped 5 to 6 quotations, with varying available services within 20 min. Very funny, knowledgeable, and detail oriented person. I would recommend Rosenthal Plumbing
My service was great. We had Josh and he was awesome! He communicated every step of the way and was very easy to work with and talk with. I would definitely have Josh come back anytime I need Something done !
Mario did a great job. He listened to our concerns carefully and kindly, reviewed options, took our needs into consideration, and explained things well. He was thorough and efficient and left things as clean as he'd found them.
Thanks for responding so quickly & for sending such an excellent plumber. The work was thoroughly explained & quickly completed. I will use Rosenthal plumbing for all my plumbing needs.
I woke up to find my downstairs ceiling dripping water. The leak was coming from my upstairs bathroom. I went into full panic mode. I called Rosenthal Plumbing and explained what was going on. Due to the urgency of my situation, the dispatcher Selina, contacted Mr Raffael
Just had Alex fix our sink drainage problem. He did an excellent job explaining and solving the issue. highly recommend
When you wake up in the morning with no hot water. You might think it is going to be a bad day. However here in Santa Cruz, we have miracle workers in the form of the awesome technicians at Rosenthal Plumbing. Our water heater, drains, and lines were so old they were amazed it
Tech did a great job. Job was done within 2-3 hours. Very professional
They provided excellent, quality service for my family. A free estimate was provided after a thorough evaluation and explanation of the work needed with various price options. More transparency in itemized cost should have been offered but otherwise, the experience and knowledge
Alexander came promptly to address a leak in the water supply filter system. He thoroughly assessed the situation and checked on the bathroom and kitchen plumbing. He was quick and professional and did a great job fixing the leak and installing a new, upgraded water filtration
Alexander was fantastic. Discovered damage we didn’t know about and fixed everything in a single afternoon. Would have been structural floor damage in our very near future if he hadn’t carefully checked everything. Provided 3 different detailed solutions/costs for the full job.
Josh was very helpful and efficient in clearing the drain lines from my house to the main sewer line. He diagnosed the problem and ran a camera to give me the bad news of roots and collapsing old pipes. I have complete confidence in his work and he was a pleasure to meet and
Mario, was Fabulous! He explained everything to me with all my options. I Will definitely call again and ask for Marie. He was very professional along with being very courteous. Thank you for coming out so quickly, that was much appreciated.
Called in the morning and had an expert coming to my place a few hrs later. The technician, Joshua Obert, was knowledgeable, friendly and very professional . He did not rest until he found and fixed the problem. I could not be happier with his work. Highly recommended!
Anthony is an excellent job explaining every bit of work that needed to be done. I was impressed with the work that was done along with the fact they were able to get it done with same day notice! Highly recommend and will definitely be back in the future!
I just moved here into an older mobile home that needed major repairs, Ian and Travis replaced my water piping and water heater and some other plumbing issues. They are rock stars and did an awesome job! I highly recommend Rosenthal Plumbing, they also offer financing for the
Josh from Rosenthal Plumbing was super pleasant to deal with and did an outstanding job servicing my tankless water heater. He also gave me recommendations for future care to help my equipment last longer. It was easy to schedule my appointment with Rosenthal too. I'm glad that
I am writing to express my sincere appreciation for the exceptional service provided by Brandon during his recent visit to our facility. It was a pleasure to have Rosenthal Plumbing on-site again. Brandon’s work is distinguished not only by its high quality but also by the
I am writing to express my sincere appreciation for the exceptional service provided by Brandon during his recent visit to our facility. It was a pleasure to have Rosenthal Plumbing on-site again. Brandon’s work is distinguished not only by its high quality but also by the
Josh called before coming and then arrived on time. I’m usually a bit uptight when workmen are at my home but It was really nice to have him around. He explained everything in detail and gave me several options to choose from. All of them were practical and worthy of
I'm a 75 year old retired general contractor that couldn't be any happier with the experience. From starting the service experience online, the follow thru from the office, to the work performed by Josh, the technician. Keep up the good work
Prompt, professional communication to set up the appointment with an introduction to my assigned technician, Mario, via his Bio before he arrived, complete with a photo. Mario was amazing in helping fix our plumbing issue. He walked me through the different options and helped me
The contractors renovating our house installed our new household water softener, but it wasn't working and they couldn't figure it out. Anthony, from Rosenthal Plumbing, came and was very detailed and methodical in his diagnostic approach, which I really appreciated. Within 15
Everyone was friendly and professional. The dispatcher was accurate in the timing of appointment and Josh took care of our problem. He was very thorough and even took the time to other areas of our homes plumbing. He explained everything he was doing and was happy to answer any
Josh came out this morning, checked out the issues and also found few other items that needed attention. On site, prepped 5 to 6 quotations, with varying available services within 20 min. Very funny, knowledgeable, and detail oriented person. I would recommend Rosenthal Plumbing
My service was great. We had Josh and he was awesome! He communicated every step of the way and was very easy to work with and talk with. I would definitely have Josh come back anytime I need Something done !
Ready for amazing plumbing service in the Santa Cruz area?
Trust Rosenthal for Your Leak Detection Services
Call Rosenthal when you need your water leak detection in Los Gatos, CA taken care efficiently. We’ll work hard to limit as much water damage as possible so you can focus on fixing your leak and getting back to your normal life. Don’t put water leak detection off any longer! Make your appointment today!
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4.9 Stars | 500+ Reviews