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Leak Detection in Mountain View, CA

Expert Water Leak Detection & Repair

Worried about a hidden water leak in your Mountain View home? Drain & Water offers professional leak detection and repair services using advanced, non-invasive technology. From slab leaks to underground pipe leaks, our licensed plumbers pinpoint the problem fast — protecting your property and your wallet. Available 24/7.

What Is a Water Leak and Understanding Hidden Plumbing Leaks in Your Mountain View Home

A water leak occurs when water escapes from your plumbing system through cracks, corrosion, loose fittings, or damaged pipe joints. Leaks can develop in pressurized water supply lines, drain lines, slab-embedded pipes, or underground water mains. Some leaks are immediately visible — a dripping faucet or a puddle under a sink — but many are hidden behind walls, beneath concrete foundations, or buried underground where they silently cause damage over weeks or months.

In Mountain View, homes range from mid-century Eichler-style builds in neighborhoods like Monta Loma to newer developments near North Whisman. Older homes are especially susceptible to leaks caused by aging copper pipes, corroded galvanized steel, or shifting clay soil that puts pressure on underground lines. Mountain View’s seismic activity and seasonal ground movement can also stress pipe joints over time, making routine leak detection an essential part of home maintenance.

Pro Tip: Even a small, slow leak wasting just one drip per second can add up to over 3,000 gallons of water per year. In California’s tiered water pricing structure, that’s money literally going down the drain. 

Did You Know

A single dripping faucet wasting one drip per second can waste more than 3,000 gallons per year—enough water to take over 180 showers—and in drought-prone Mountain View, every drop counts toward conserving our precious water resources.

Unexplained increase in your water bill — A sudden spike without a change in usage is one of the most reliable indicators of a hidden leak.

Sound of running water when all fixtures are off — If you hear water flowing through pipes when nothing is in use, a leak is likely present.

Warm or damp spots on floors — Especially on concrete slab foundations, warm patches may indicate a hot water slab leak beneath your home.

Water stains, bubbling paint, or warped flooring often signal a leak behind the surface.

Mold, mildew, or musty odors — Persistent moisture behind walls or under flooring creates the perfect environment for mold growth.

Wet or soggy patches in your yard — Unexplained green patches or standing water in your landscape may signal an underground pipe leak.

Low water pressure — A leak in your main water line can reduce pressure throughout the house.

Prolonged slab leaks can erode the soil beneath your foundation, leading to shifting and cracking.

Warning Signs You May Have a Hidden Water Leak in Your Mountain View Home

Catching a leak early can save you from expensive repairs and water damage. Here are the most common warning signs Mountain View homeowners should watch for.

Pro Tip: Try the water meter test. Turn off every water-using fixture and appliance in your home, then check your water meter. If the dial is still moving, you almost certainly have a leak. Write down the reading, wait 30 minutes, and check again for confirmation.

If you notice any of these signs, don’t wait. Contact Drain & Water for a professional leak detection assessment before the damage spreads.

Expert Water Leak Detection Services

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Our Mountain View Leak Repair Services

Once we’ve located your leak, Drain & Water provides comprehensive repair solutions tailored to the type and severity of the problem:

Trenchless Repairs

Using our exclusive TrenchFree™ technology, we can repair or replace underground pipes through methods like CIPP pipe lining and pipe bursting — no trenching required.

Slab Leak Repair

Slab leaks are common in Mountain View homes built on concrete foundations. We offer both spot repairs and line rerouting to address leaks beneath your slab with minimal disruption.

Drain & Sewer Leak Repair

Leaks aren’t limited to water supply lines. We also handle drain repair, sewer line repair, and sewer replacement for damaged waste lines.

Pipe Repair & Patching

For isolated leaks caused by corrosion, joint failure, or minor cracks, we perform targeted repairs that restore your system without replacing entire sections of pipe.

Repiping

For homes with widespread pipe deterioration — common in Mountain View’s older neighborhoods — a full or partial repipe may be the most cost-effective long-term solution. Learn more about PEX vs. copper repiping options.

Water Line Replacement

When pipes are too damaged for repair, we provide full water line replacement using modern, durable materials.

Ready to get your leak fixed? Call (408) 564-0580 or request a service appointment with Drain & Water.

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Request a Leak Detection Service in Mountain View

Getting started with Drain & Water is simple. You can:

  1. Call us directly at (408) 564-0580 — available 24/7 for emergencies.

  2. Submit a request online through our contact page.

  3. Email us at service@drainandwater.com.

We’ll schedule a convenient appointment, arrive on time with all the equipment needed, and provide a clear explanation of our findings along with transparent repair options. No surprises, no hidden fees. 

Trusted by Mountain View Homeowners & Businesses

We needed all the original cast iron pipes under our 1954 house replaced recently (after we noticed a leak in the crawlspace under the kitchen sink). I contacted several plumbers, and Drain & Water ended up being an easy choice -- they were fast, responsive, communicative throughout the entire process, and patient with all my technical questions. They were able to dig under the house, remove all the old pipes, install new pipes, and wrangle the permit/inspection process with professionalism and (again) fantastic communication. I would absolutely recommend them to anyone in the area with a plumbing issue, large or small.
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Anne Corwin
Crawl Space Leak Detection
The team at Drain & Water crawled under and around our home to find the water leak that ran up our water bill. Leak was detected under our backyard hardscape. The team trenched a replacement pipe to avoid tearing up our hardscape. They did an excellent job of finding the best underground route to lay the pipe. Very happy with the work they did. They are now my go-to team for any plumbing related problems.
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Kevin Von Luehrte
Water Leak Detection
Our technician was timely, communicated everything and took care of our issue when other companies told us we had to replace everything! Thank you!
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Darla Smyth
Plumbing

Common Leak Detection Technologies We Use in Mountain View

Modern leak detection goes far beyond guesswork. At Drain & Water, we deploy a suite of professional-grade technologies to locate leaks with precision:

Acoustic Leak Detection

Sensitive listening devices amplify the sound of water escaping from pressurized pipes, even when buried several feet underground or hidden behind walls. This is one of the most effective methods for pinpointing leaks in water supply lines.

Electronic Leak Detection

Specialized equipment measures pressure abnormalities and inconsistencies in your pipe system by sending signals through the plumbing. This helps our technicians zero in on the exact location of a breach.

Video Camera Inspection

High-definition sewer camera inspections allow us to visually assess the interior condition of your pipes in real time. We can identify cracks, root intrusion, corrosion, and blockages that may be causing or contributing to leaks.

Thermal Imaging

Infrared cameras detect temperature variations caused by moisture behind walls, under floors, and in ceilings. This is especially useful for locating slab leaks and hidden hot water line leaks.

Hydrostatic Pressure Testing

We isolate sections of your plumbing system and test them under pressure to identify weak points and confirm leak locations before any repair work begins.

Soil Probes

For underground and yard line leaks, soil probes help us detect moisture levels at various depths to narrow down the leak location.

Pro Tip: Drain & Water offers a free video camera inspection for drain lines to homeowners — a great way to proactively check for developing problems before they become emergencies.

Drain and Water Plumbing Services Team
Drain and Water plumbing technician and service vehicle

Why Choose Drain & Water for Leak Detection and Repair in Mountain View?

Not all plumbing companies are equipped to handle the complexities of modern leak detection. Here’s what sets Drain & Water apart:

  • Non-Invasive, Advanced Diagnostics — We use cutting-edge technology to locate leaks without tearing up your floors, walls, or landscaping. Our approach preserves your property’s integrity while delivering pinpoint accuracy.

  • Exclusive TrenchFree™ Technology — As the only company in the Bay Area using patented TrenchFree™ trenchless methods, we can repair underground leaks without disruptive excavation. Your yard, driveway, and landscaping stay intact.

  • Licensed & Experienced — Our team holds C36, C12, and C42 contractor licenses and has experience working on everything from 1800s-era historic homes to contemporary Mountain View developments.

  • 24/7 Emergency Availability — Water leaks don’t wait for business hours, and neither do we. Our emergency response team is available around the clock.

  • Family-Owned, Local Business — Based in San Jose and proudly serving Mountain View and all of Santa Clara County, we treat every customer like a neighbor.

  • 5-Star Google Rating — Our reputation speaks for itself. Customers consistently highlight our professionalism, fair pricing, and minimal disruption.

  • Industry-Leading Warranties — We stand behind our work with limited lifetime warranties on qualifying repairs.

  • Financing Available — We offer flexible financing through Wisetack so you can address leaks immediately without financial stress. Learn more about financing.

Pro Tip: When choosing a leak detection company, always verify their California contractor’s license and ask about their detection methods. Companies that rely solely on visual inspection may miss hidden leaks that electronic and acoustic detection would catch.

Ready to schedule? Call Drain & Water at (408) 564-0580 or request service online.

Our Leak Detection Process in Mountain View: What to Expect

At Drain & Water, we follow a systematic, proven process to ensure accurate results and efficient repairs:

Step 1: Initial Consultation & Property Assessment
When you contact us, we’ll discuss the symptoms you’ve noticed — high water bills, damp spots, sounds of running water — and gather details about your home’s plumbing history. This helps us determine the most effective detection approach for your specific property.

Step 2: On-Site Inspection & Advanced Diagnostics
Our licensed technician arrives with professional-grade detection equipment. Depending on your situation, we may use acoustic listening devices, electronic detection, thermal imaging, video camera inspection, or pressure testing to locate the leak with precision. Our non-invasive methods mean we find the problem without unnecessary damage to your home.

Step 3: Detailed Findings & Repair Recommendations
Once we’ve identified the leak’s exact location and severity, we walk you through our findings in plain language. We explain what caused the leak, show you camera footage if applicable, and present your repair options with upfront pricing. You’ll know exactly what to expect before any work begins.

Step 4: Professional Repair
After you approve the repair plan, our team gets to work. Whether it’s a targeted pipe repair, a trenchless lining, or a full line replacement, we complete the job efficiently and with minimal disruption to your daily life.

Step 5: System Testing & Quality Assurance
After the repair, we test your plumbing system to confirm the leak is fully resolved and everything is operating correctly. We clean up our work area and ensure you’re completely satisfied before we leave.

Pro Tip: Don’t wait for visible damage to schedule a leak detection. If your home is more than 20 years old, a proactive plumbing inspection can catch developing issues before they become costly emergencies. Check out our guide on 7 early warning signs of a hidden leak for more information.

Frequently Asked Questions About Leak Detection in Mountain View, CA

Common signs include unexplained increases in your water bill, damp or warm spots on floors, musty odors, water stains on walls or ceilings, and the sound of running water when all fixtures are off. If you notice any of these, it’s best to schedule a professional leak detection service promptly to prevent further damage.

We detect all types of residential water leaks, including slab leaks beneath concrete foundations, pinhole leaks in copper pipes, underground water line leaks, leaks behind walls and ceilings, and drain or sewer line leaks. Our advanced diagnostic equipment allows us to locate leaks in virtually any part of your plumbing system.

No. Drain & Water uses non-invasive detection methods including acoustic listening devices, electronic detection, thermal imaging, and video camera inspection. These technologies allow us to pinpoint leak locations accurately without cutting into walls, floors, or landscaping unless a repair requires targeted access.

Most residential leak detection services in Mountain View can be completed within two to four hours, depending on the complexity of the issue and the size of your home. Our technicians arrive fully equipped so there’s no need for multiple visits in most cases.

A slab leak occurs when a water or sewer line running beneath your home’s concrete foundation develops a crack or break. They’re common in Mountain View due to the area’s clay soil, which expands and contracts with moisture changes, putting stress on underground pipes. Aging copper pipes and seismic activity also contribute to slab leak frequency.

Absolutely. Even a slow, seemingly minor leak can waste thousands of gallons of water annually and cause significant damage over time, including mold growth, wood rot, drywall deterioration, and foundation settling. Early detection and repair is always more affordable than dealing with the consequences of a long-term hidden leak.

Yes. We provide 24/7 emergency plumbing services for urgent leak situations in Mountain View and throughout our service area. If you’re dealing with a burst pipe, active flooding, or any situation where water damage is occurring, call us immediately at (408) 564-0580 and we’ll dispatch a technician as quickly as possible.

Ready to protect your Mountain View home from water leak damage?

Don’t let plumbing problems disrupt your life or damage your property. Whether you need emergency repairs, routine maintenance, or a major plumbing project, Drain and Water’s licensed plumbers are ready to help.

(408) 564-0580
service@drainandwater.com
1913 Stone Ave, San Jose, CA 95125

Serving Mountain View Neighborhoods and Surrounding Communities

Drain & Water proudly provides leak detection and water leak repair services throughout Mountain View’s diverse neighborhoods, including:

  • Old Mountain View — One of the city’s most historic neighborhoods, featuring charming Craftsman and Colonial-style homes that often require specialized plumbing care for aging pipe systems.

  • Monta Loma — Known for its mid-century Eichler homes with slab foundations, making this neighborhood particularly susceptible to slab leaks.

  • Cuesta Park — A popular family neighborhood with mature homes from the 1950s and 1960s that may have original copper or galvanized plumbing.

  • Waverly Park — A prestigious neighborhood with stately homes where preserving property integrity during leak repair is a top priority.

  • Shoreline West — Charming bungalows and cottages close to downtown, where older plumbing infrastructure benefits from proactive leak detection.

  • Rex Manor — A well-established residential area with homes that range in age and plumbing condition.

  • Blossom Valley — A thriving suburban community with ranch-style homes originally built on former orchard land in the 1950s and 1960s.

  • North Whisman — A rapidly developing area with a mix of older homes and newer construction near major tech campuses.

  • Sylvan Park — A quiet residential neighborhood where underground pipe issues can go unnoticed without regular inspections.

  • Slater — A growing neighborhood with diverse housing stock that benefits from modern leak detection technology.

  • Gemello — A residential community where clay soil conditions can contribute to underground pipe stress.

  • Saint Francis Acres — An upscale neighborhood where homeowners value non-invasive, property-preserving repair methods.

  • Martens-Carmelita — A family-friendly neighborhood with a community pool and homes that may require updated plumbing.

  • Moffett Boulevard — A diverse area with a range of property types, from condos to single-family homes.

Neighboring Cities We Serve:
We also provide leak detection and repair services to homeowners in Sunnyvale, Palo Alto, Los Altos, Cupertino, Santa Clara, San Jose, Campbell, Milpitas, Menlo Park, and East Palo Alto. View our full service area.

Our Leak Detection Service Area

San Mateo County

Lifetime Warranty Guarantee - Free Camera Inspection

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