Leak Detection San Jose, CA– Trusted & Timely Services

Professional leak detection services providing accurate diagnosis and repair for slab leaks, water line issues, and hidden pipe breaches with 24/7 emergency response and licensed technicians for San Jose homeowners and businesses.

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Our Certifications & Professional Standards

Your Go-To Leak Detection Company in San Jose, CA

Need a dependable, certified leak detection expert who’s available whenever you need them, day or night? CPI Service delivers professional, round-the-clock leak detection in San Jose, backed by licensing, advanced tools, and a reputation built on accuracy and trust. Whether it’s a midnight slab leak or a scheduled inspection for persistent moisture issues, our team responds without delays or excuses.

Proudly serving neighborhoods throughout San Jose, our licensed technicians are trained to diagnose, locate, and repair all major types of residential leaks. Using state-approved detection methods and durable components, we handle everything from underground water line leaks to pipe breaches inside walls, always with clear pricing and customer-first communication.

We operate under CSLB License #1101278, ensuring that every job is performed with full compliance and professional standards. CPI Service combines modern leak detection technologies with the reliability of a locally rooted, family-owned business that values your time, property, and peace of mind.

Call CPI Service at (408) 549-8181 today to speak with a local plumbing expert. We’ll help you book a service time that works for you, answer any leak-related questions, and send a licensed technician equipped to resolve the issue quickly and cleanly.

Affordable Leak Detection Services with Options

At CPI Service, we believe every homeowner in San Jose should have access to high-quality, certified leak detection, regardless of budget size or urgency. That’s why we offer a flexible range of pricing support options, seasonal promotions, and customer-first incentives. From one-time discounts to longer-term financing, we make it easier to take action when leaks occur, without delaying necessary repairs or risking property damage.

Coupon Deals & Other Discounts

Special Offers & Promotions

$47 Off

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0% for 12 mo.

New Customers

5% off on any service

Our Leak Detection Repair Services We Offer in San Jose

Electronic Leak Detection

CPI Service uses cutting-edge electronic detection technology to pinpoint hidden leaks in San Jose homes and businesses. Our experienced plumbers leverage this advanced method to detect moisture behind walls, beneath flooring, or within slabs, eliminating the need for invasive cutting. This technique guarantees quick, precise results while minimizing unnecessary damage and repair delays.

Non-invasive, accurate leak detection
Utilizes professional-grade electronic sensors
Effective for slab, wall, and underground leaks
Streamlines repair decisions with clear diagnostics

Thermal Imaging

Detecting temperature variations is an efficient way to find hidden water leaks in San Jose properties. CPI Service plumbers utilize thermal imaging cameras to identify cooler or damp areas behind walls, ceilings, or floors, eliminating the need for surface disruptions. This method ensures early leak detection, reduces water damage, and accelerates repairs.

Non-invasive detection using heat mapping
Quick identification of moisture and leak sources
Ideal for interior wall and ceiling leaks
Helps avoid expensive structural repairs

Acoustic Leak Detection

Sound-based testing is an effective technique for locating underground or in-wall plumbing leaks in San Jose properties. CPI Service utilizes acoustic leak detection tools that amplify the sound of escaping water, enabling our plumbers to pinpoint the exact leak location without disrupting surfaces. This method is especially effective on pressurized lines, where other techniques may not be as reliable.

Detects leaks through sound without causing surface damage
Perfect for underground and in-wall plumbing systems
Accurate even in noisy or complex environments
Reduces time spent on trial-and-error excavation

Pressure Testing

Pressure testing is a highly reliable method CPI Service uses to detect plumbing leaks in San Jose properties. By sealing and pressurizing water or gas lines, our plumbers can measure pressure loss and accurately pinpoint problem areas. This approach is particularly effective for confirming system integrity in both residential and commercial buildings.

Confirms leaks with measurable pressure loss
Works for water, gas, and drainage systems
Identifies weak spots in closed piping networks
Supports precise repair planning and safety checks

Visual Inspection

In many San Jose properties, visible signs of leaks are the first indicators of potential plumbing issues. CPI Service plumbers perform thorough visual inspections to evaluate water damage, corrosion, and fixture integrity. While often paired with advanced tools, this hands-on method helps confirm surface-level problems and directs the next steps for repair or further diagnostics.

Identifies surface damage and fixture wear
Helps verify leak sources before initiating repairs
Provides quick assessment without the need for equipment setup
Complements electronic or thermal diagnostics for comprehensive results

Gas Leak Detection

Gas leaks present significant safety risks, especially in San Jose properties. CPI Service utilizes advanced gas detection equipment to identify leaks in fuel lines, heating systems, and appliances. Our plumbers respond swiftly to locate and isolate the problem, ensuring your home or business stays safe and code-compliant.

Detects leaks in natural gas and propane lines
Protects against fire hazards and health risks
Enables quick shut-off and targeted repairs
Ensures compliance with safety regulations

Water Leak Detection

Unnoticed water leaks can cause significant damage in San Jose homes and businesses. CPI Service offers comprehensive water leak detection using a combination of electronic tools, thermal imaging, and visual inspections. Our plumbers accurately pinpoint the source of leaks, whether in walls, under slabs, or hidden within pipes, and recommend the most effective repair solution.

Pinpoints leaks without causing unnecessary damage
Effective for indoor, outdoor, and underground lines
Prevents mold, rot, and structural issues
Provides quick, reliable solutions for urgent plumbing problems

Why Choose CPI Service – The Local Plumber San Jose Trusts

When it comes to leak detection, CPI Service stands out as the trusted local plumber in San Jose. Our experienced team uses advanced technology like thermal imaging and electronic tools to quickly and accurately identify leaks, ensuring minimal disruption and long-lasting, cost-effective solutions for your property.

What San Jose Clients Say About Our Leak Detection Services

Had the plumber Daniel come to my condo today for a clogged toilet. He spent almost two hours snaking with a camera my drain and pulled out a huge clog of tree roots. He knew exactly what he was doing and did a wonderful job. I would recommend this company very much.

Ron K.

Great, reliable, and timely service at a reasonable price. I shopped around quite a bit before landing on CPI. Their rates were competitive, they responded promptly, and their plumber fixed a few issues quickly and without much fuss. I’ll definitely be calling them again the next time we have issues!

Allan Huynh

CPI Service was sent to my home by my condominium association. They agreed to a very early morning appointment and the gentleman arrived exactly on time. He went through the problem very methodically to see where the problem was. Something that no one else could figure out was taken care of in half an hour. I would very definitely recommend them.

Fern F.

Our Plumbing Project Gallery

Discover how CPI Service has assisted San Jose homeowners and businesses with professional leak detection and repair. Our project gallery highlights real jobs completed by our team, demonstrating the tools, techniques, and attention to detail we apply to every property we service.

Heat Pump Installation in San Jose — Heat Pump Installation

pipe replacement in Sunnyvale — Underground Pipe Replacement

Meet Our Leak Detection Specialists

At CPI Service, every leak detection job across San Jose is handled by a technician who’s not only licensed and certified but also trained in providing customer-focused service. Our team combines advanced technical skills with a professional attitude, ensuring your time and home are respected throughout the process.

Our Leak Detection Resources

About CPI Service – San Jose’s Leak detection Specialist

CPI Service, a family-owned, locally operated company, has been proudly serving San Jose since 1986. We are dedicated to providing fast, accurate, and non-invasive leak detection for both homeowners and businesses. With our CSLB License #1101278 and 24/7 availability, our team combines state-licensed expertise with deep local knowledge to deliver cost-effective, reliable services. We ensure code-compliant repairs and sustainable solutions that prevent future issues.

Family-owned and locally operated since 1986
Serving homeowners and businesses in San Jose
Licensed and code-compliant (CSLB License #1101278)
24/7 emergency services available
Cost-effective and reliable leak detection solutions
Honest evaluations and fair pricing

Common Types of Leaks We Detect in San Jose Homes and Businesses

Our certified team at CPI Service specializes in identifying a wide range of leak issues commonly found in San Jose homes. From underground piping to everyday fixture leaks, we use advanced tools to locate and fix each with precision.

Slab Leaks – Slab leaks occur beneath your foundation and often go unnoticed. We detect them using acoustic sensors, helping prevent floor damage, mold growth, and high water bills before they escalate.
Water Pipe Leaks – Corroded or burst water pipes can lead to serious water damage. Our team pinpoints pipe leaks inside walls or ceilings using non-invasive technology for fast, clean repairs.
Faucet & Fixture Leaks – Leaky faucets and showerheads waste water and raise utility costs. We quickly identify worn seals or faulty parts and perform on-the-spot repairs or replacements.
Toilet & Shower Leaks – Signs of these leaks include damp flooring or mildew around fixtures. We inspect connections, seals, and internal mechanisms to restore function and prevent further water waste.
Underground Water Line Leaks – Leaks beneath lawns or driveways cause pooling and sinkholes. We use ground microphones and tracer gases to find the exact leak location without unnecessary digging.
Drainage & Sewer Leaks – Sewer leaks often emit foul odors and lead to backups. Our plumbers use camera scopes and pressure testing to detect breaks or blockages and resolve them quickly.

How Does Our Leak Detection Process Work in San Jose?

Initial Call & Appointment Scheduling

It all starts with a quick phone call or online form submission. Whether you’re facing a sudden water issue or a slow-growing concern, we gather key details and schedule a time that fits your routine. Our customer care team confirms location, symptoms, and urgency before assigning the right technician.

On-Site Inspection & Diagnosis

Your licensed technician arrives on time equipped with advanced leak detection tools such as acoustic sensors, pressure gauges, and infrared imaging. We thoroughly inspect the area to identify hidden leaks, assess property risk, and determine the source and extent of the issue.

Transparent Estimate and Service Approval

Once the issue is diagnosed, we provide a clear, itemized estimate, no hidden fees, no pressure. We explain the repair options, expected duration, materials involved, and total cost before any work begins. You’ll have all the facts to make a confident decision.

Repair/Installation by Licensed Technicians

With your approval, our technicians perform all work using certified parts and code-compliant methods. Whether it’s a quick valve replacement or an extensive pipe repair, we complete the job efficiently, safely, and up to San Jose city standards. Our trucks come fully stocked to avoid delays.

Testing and Cleanup

Once repairs are done, we test the system thoroughly, checking for pressure consistency, water flow, and complete leak resolution. We also clean up the workspace, leaving your home or property exactly as we found it, or even better.

Follow-Up & Support

After service, we’re still here for you. If questions or concerns arise, our team offers post-repair support, warranty service (if applicable), and preventive guidance to help you avoid future leak issues. We stand by our work with genuine long-term commitment.

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San Jose Leak Detection FAQs

What is Leak Detection?

Leak detection is the process of locating hidden or visible water leaks in plumbing systems using specialized tools like acoustic sensors, thermal imaging, and pressure testing equipment. In San Jose homes, this often involves non-invasive methods to pinpoint the source of a leak without damaging walls, floors, or landscaping. CPI Service uses advanced technology to ensure fast, accurate identification and repair, minimizing both water waste and property damage.

How Do I Know If I Have A Leak?

Warning signs of a leak include spikes in your water bill, wet spots on walls or floors, mold or mildew smells, and dripping sounds when no water is running. Other clues may be low water pressure or unusually green patches in the yard, indicating underground line issues. If you notice any of these symptoms, a quick inspection by CPI Service can help confirm and resolve the issue before it worsens.

Are Leak Detection Services Available After Hours?

Yes. At CPI Service, we provide emergency leak detection services 24/7 across San Jose, including weekends and holidays. Plumbing emergencies don’t follow business hours, and delays can lead to costly structural damage. Our technicians are always ready to respond quickly, equipped with the right tools to diagnose and mitigate the problem on the spot.

What Are The Most Common Leak Issues CPI Service Handles?

We frequently address leaks related to slabs, water pipes, faucets, toilets, underground lines, and sewer systems. These issues are often caused by pipe corrosion, shifting foundations, aging fixtures, or root intrusions. CPI Service is equipped to handle both minor and major leak scenarios using proven techniques and state-certified expertise, ensuring long-term resolution and system integrity.

Book a Local Leak Detection Service in San Jose Now!

Contact CPI Service at (408) 549-8181 for fast, accurate leak detection in San Jose. Our licensed technicians (CSLB License #1101278) offer same-day availability and 24/7 service for emergencies or routine inspections. Call us, fill out our online request form, or connect via live chat to schedule a service window that fits your schedule and experience professional, customer-first leak detection solutions.