Roof Leak Detection in Janesville, WI

Water infiltration through roofing systems can cause devastating damage that extends far beyond the initial leak point, affecting structural components, insulation, electrical systems, and valuable interior contents. Many roof leaks remain hidden for months or even years, silently causing mold growth, wood rot, and compromised building integrity before becoming visible as ceiling stains or dripping water. By the time homeowners notice obvious signs of leakage, thousands of dollars in damage may have already occurred.


Roof leak detection requires specialized expertise and advanced diagnostic equipment to locate the exact source of water infiltration, which often differs significantly from where water eventually appears inside your building. Water can travel along roof decking, through wall cavities, and around structural elements before manifesting as interior damage, making visual inspection alone inadequate for accurate diagnosis. 


Janesville Superior Roofing employs cutting-edge detection technology combined with years of experience to identify leak sources quickly and accurately. Our comprehensive approach includes visual assessment, electronic moisture detection, thermal imaging analysis, and controlled water testing when necessary. We understand that successful leak detection requires both technical expertise and thorough knowledge of how Wisconsin's weather patterns affect different roofing systems.

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Our Roof Leak Detection Services

We provide detailed evaluations that pinpoint leak origins, assess roofing system conditions, and identify potential vulnerabilities. Our process combines precise technology and thorough inspections to reduce repair costs and extend the life of your roof.

Advanced Detection

Our roof leak detection process employs state-of-the-art tools to locate leaks quickly and accurately. We use infrared thermography to identify moisture beneath the roofing surface without damaging materials. Electronic leak detection assists in tracing water paths within complex roofing systems, especially on flat roofs where leaks can be harder to spot.



Visual inspections complement these technologies, allowing us to detect physical signs like cracks, blisters, or damaged seals. Combining these methods ensures no hidden leaks remain undetected, optimizing repair planning and system longevity.

Types of Roofing Systems Inspected

We specialize in leak detection across various roofing types, including asphalt shingles, metal roofs, and flat roofing systems. Flat roofs require particular attention due to their propensity for pooling water and membrane damage.



Our expertise extends to commercial and residential roofs. We assess the condition of the entire roofing system—coverings, flashings, seals, and drainage components—to ensure comprehensive diagnosis and precise recommendations.

Routine and Emergency Inspections

Regular roof inspections are crucial to identifying minor issues before they escalate into costly repairs. We offer scheduled maintenance inspections to maintain your roof’s integrity year-round.



In emergencies, such as after severe storms or sudden leaks, we respond promptly to assess damage and mitigate further risk. Our fast, precise service minimizes water damage and structural impact, protecting your property efficiently.

Our Roof Leak Detection Process

We use precise and thorough methods to identify leaks and evaluate your roofing system’s condition. Our approach ensures long-term protection and minimizes hidden damage by pinpointing exact problem areas quickly and accurately.

1. Initial Roof Inspection

We begin with a detailed physical examination of your roof’s surface to check for visible damage like cracks, punctures, blisters, or worn seams. This step highlights weak spots and areas under stress that could allow water entry.



During the inspection, we also review your roof's materials, drainage patterns, and past repair history. This helps us understand the roofing system’s overall condition and potential vulnerabilities, guiding our next steps efficiently.

2. Moisture Scanning and Testing

Next, we use moisture meters and thermal imaging cameras to detect trapped water or dampness beneath the surface. These tools reveal hidden leaks that aren’t visible to the naked eye by measuring temperature differences and moisture levels inside the roofing layers.



Accurately finding moisture intrusion early prevents mold growth and structural deterioration. We choose testing methods based on your roof type, whether built-up, TPO, or modified bitumen, to ensure reliable results.

3. Damage Assessment and Reporting

Once testing is complete, we assess the extent of water damage and compromised materials. This includes checking substrate integrity, insulation saturation, and signs of ongoing water migration in the roofing system.



We compile our findings into a clear report with photos and detailed explanations. This report helps you understand the problem’s severity, necessary repairs, and prioritizes work to maintain your roof’s performance.

4. Leak Source Identification

We follow the water’s path through the roof layers to locate the exact entry points. This may involve water testing with hoses or infrared scanning to confirm active leaks.



Identifying the precise leak source allows us to propose targeted repairs rather than broad replacements. This approach saves time and costs while ensuring your roof is sealed properly against future leaks.

Why Choose Janesville Superior Roofing

We prioritize quality, personalized service, and customer satisfaction in every project. Our approach ensures your roof leak detection needs are met with precision and reliability.


Expert Craftsmanship


Our team consists of highly trained professionals who specialize in roofing craftsmanship. We use industry-standard techniques and materials to detect leaks accurately and prevent future damage. Quality assurance is integral to our work. Each inspection and repair undergoes thorough checks to confirm durability and effectiveness. This reduces the likelihood of recurring issues.


Tailored Roofing Solutions


No two roofs are the same, so we customize our leak detection processes to fit your specific roof type and condition. We consider factors like materials, age, and weather exposure. Our solutions combine traditional methods and modern equipment such as infrared scanning and moisture meters. This tailored approach identifies even hidden leaks with minimal disruption.


Customer Satisfaction


We believe communication is key throughout the roofing process. Our team answers your questions clearly and keeps you informed at every step. Our service in Janesville, WI, emphasizes timely response and fair pricing. We aim to resolve leaks efficiently while staying within your budget.

Frequently Asked Questions About Roof Leak Detection


  • How much does professional roof leak detection cost?

    Professional roof leak detection costs depend on your roof's size, complexity, and the detection methods required. Simple visual inspections cost less than advanced techniques like thermal imaging or moisture testing. At Janesville Superior Roofing, we provide upfront pricing for all detection services and often credit the inspection fee toward repair work when you choose us for the fix. 

  • What methods do you use for roof leak detection?

    We use multiple detection methods including thorough visual inspection, water testing with hoses to simulate rainfall, thermal imaging cameras that identify temperature differences caused by moisture, and electronic moisture meters that detect hidden water in building materials. For complex cases, we may use smoke testing or tracer dyes to track water paths. 

  • Do you offer roof leak detection services in Janesville?

    We provide comprehensive roof leak detection services throughout Janesville and the surrounding area. We specialize in locating difficult-to-find leaks in all types of roofing systems, from residential shingle roofs to commercial flat roofs. Our experienced team uses advanced detection equipment and proven methods to identify leak sources quickly and accurately.

  • How long does roof leak detection take to complete?

    Most roof leak detection services take 1-3 hours depending on your roof's size, complexity, and the number of potential leak sources. Simple leaks with obvious symptoms can often be identified within an hour, while hidden or intermittent leaks may require more comprehensive testing. Complex commercial buildings or roofs with multiple problem areas may take half a day. 

  • What should I do if I suspect a hidden roof leak?

    Contact professional leak detection services immediately, as hidden leaks can cause extensive damage before becoming visible. Meanwhile, monitor your attic and ceilings for new water stains, musty odors, or mold growth. Avoid attempting to locate the leak yourself, as this can be dangerous and may cause additional damage. Don't delay - hidden leaks often worsen rapidly during weather events and can compromise structural integrity.