Forensic Leak Detection in Los Angeles
Someone already tried to fix your leak and it came back. Or no one can figure out where the water is coming from in the first place. Absolute Maintenance & Consulting provides forensic leak detection for residential and commercial properties in Los Angeles when the leak source is not obvious, when previous repairs have failed, or when multiple potential sources make diagnosis difficult.
Forensic leak detection is a systematic, evidence-based approach to finding complex water intrusion sources. We combine thermal imaging, moisture mapping, ASTM E1105 water testing, and physical investigation techniques to trace water from the point of damage back to its exact entry point in your building envelope.
Cameron Figgins, founder of Absolute Maintenance & Consulting, has spent over three decades solving leak mysteries in Los Angeles County buildings. He holds IICRC certification (#70018676), MICRO certification, and CSLB license #998184. When other contractors give up, we find the answer.
What Is Forensic Leak Detection?
Forensic leak detection applies systematic investigation methods to find water leaks that standard approaches miss. The word “forensic” means methodical, evidence-based analysis. In the context of leak detection, it means we do not guess at the source. We test hypotheses, eliminate possibilities one at a time, and build a documented trail of evidence from the visible damage back to the building envelope breach.
Standard leak detection works well for straightforward leaks: a visible roof hole, a cracked pipe, a failed sealant joint. Forensic leak detection is needed when:
- The visible damage is far from the actual entry point, meaning water traveled a significant distance inside the building structure before appearing
- Multiple potential sources exist (roof, windows, stucco, foundation), and the leak could originate from any of them
- Previous repair attempts did not stop the leak, indicating the real source was never identified
- The leak is intermittent, appearing only under specific conditions (certain wind directions, heavy rain, prolonged rain events)
- The building has complex construction with multiple cladding systems, penetrations, and transition details that create numerous potential failure points
At Absolute Maintenance & Consulting, forensic leak detection is our core competency. Every tool and method in our water intrusion investigation arsenal exists to solve exactly these kinds of problems.
How We Investigate Complex Leaks
Our forensic investigation process works like an elimination protocol. We start broad and narrow down systematically until we have confirmed the source.
|
Phase |
What We Do |
Purpose |
|
1. History Interview |
Detailed conversation about when the leak started, what conditions trigger it, what repairs have been attempted, and how the damage has progressed over time. |
Leaks leave behavioral clues. A leak that only appears during wind-driven rain from the south points to a different source than one that appears during any rain event. |
|
2. Exterior Assessment |
Thorough inspection of every building envelope component: roof, walls, windows, doors, flashings, sealants, penetrations, grade conditions, and drainage. |
Identify every potential entry point and rank them by likelihood based on condition, age, and relationship to the interior damage location. |
|
3. Thermal Imaging |
Full interior scan with FLIR cameras to map all hidden moisture in the structure. |
Reveals the complete moisture footprint, which often extends far beyond the visible damage and points toward the actual source direction. |
|
4. Moisture Mapping |
Pin and pinless moisture meter readings at 20-50+ points to create a quantitative moisture map. |
The moisture gradient (highest to lowest readings) indicates the direction water traveled. The highest readings are typically closest to the source. |
|
5. Hypothesis Testing |
Based on data from phases 1-4, we develop specific hypotheses about the entry point and test each one. |
We use ASTM E1105 water testing, targeted water application, or selective disassembly to confirm or eliminate each hypothesis. |
|
6. Source Confirmation |
Once a hypothesis is confirmed through testing, we document the complete water path from entry to damage. |
You know exactly where the water enters, how it travels, and why previous repairs failed to stop it. |
This process takes longer than a standard inspection. A forensic leak investigation typically requires 4 to 8 hours on site for residential properties. Complex commercial investigations may span multiple visits. The investment in thorough investigation prevents the cycle of failed repairs that costs more in the long run.
Call Us For Leak Detection Services
Diagnostic Methods We Use
Forensic leak detection uses every tool in the water intrusion investigation toolkit. The specific methods depend on what the building and the leak behavior tell us:
Thermal imaging reveals hidden moisture behind finished surfaces. FLIR cameras detect temperature differentials as small as 0.1 degrees Fahrenheit. We scan every wall, ceiling, and floor surface in the affected area and surrounding areas because moisture often migrates farther than expected.
Moisture mapping quantifies what thermal imaging identifies. Pin and pinless moisture meters confirm which thermal anomalies represent actual moisture and measure the saturation level at each point. The moisture gradient tells us which direction water traveled.
ASTM E1105 water testing reproduces the leak under controlled conditions. When we suspect a specific wall section, window, or flashing detail, we apply water at standardized rates and observe the interior for penetration. This is the definitive confirmation that a specific element is the source.
Targeted water application uses controlled water delivery to specific areas in sequence, starting at the lowest point and working up. By isolating sections, we determine which specific component fails first. This is particularly effective for stucco wall investigations where multiple cracks or details could be the source.
Selective disassembly involves carefully removing small sections of finish material to observe the wall assembly, flashing details, and moisture conditions behind the surface. We only use this method when non-invasive methods cannot provide a definitive answer, and we always discuss it with you before proceeding.
Residential Forensic Leak Detection
Homeowners in Los Angeles call us for forensic leak detection when they have exhausted simpler approaches. Here are the most common residential scenarios:
The leak that keeps coming back. You have had your roof repaired, your windows re-caulked, and your stucco patched. The leak stopped for a while and then returned. This pattern means the actual source was never found. Each contractor fixed what they could see, but the real entry point is somewhere else. Our investigation starts fresh, using diagnostics to find the source instead of reacting to the symptom.
Water damage with no obvious source. You have mold growing on an interior wall or water staining on a ceiling, but nothing on the outside looks damaged. Water can enter through a failure on one side of the building and travel 10 to 20 feet through framing members before it appears on the opposite side. Thermal imaging and moisture mapping trace the full path.
Intermittent leaks. Your leak only happens during specific conditions: heavy rain, rain from a certain direction, prolonged multi-day rain events, or rain combined with wind. These behavioral clues tell us which building envelope component is failing. A leak that only occurs with south-facing wind-driven rain points to a different source than one that occurs during any rain event.
New construction with unexplained leaks. Your home is less than 10 years old, and it should not be leaking. Forensic investigation identifies construction defects in the building envelope: missing flashings, improperly installed weather-resistant barriers, flashing that does not overlap correctly, or sealant used where mechanical flashing was required.
Contact Our Water Intrusion Experts Today
Commercial Forensic Leak Detection
Commercial buildings present more complex forensic challenges due to scale, multiple cladding systems, and concealed building envelope details. Absolute Maintenance & Consulting provides forensic investigation for:
- Multi-unit residential where leaks travel between units through shared wall assemblies. We determine which unit or common area has the building envelope failure so the HOA or property management can direct repairs to the correct location.
- High-rise and mid-rise buildings where curtain wall systems, window walls, and complex roof-to-wall transitions create numerous potential failure points at each floor level. We test systematically from bottom to top.
- Buildings with construction defect concerns where newly constructed or recently renovated properties leak despite being within warranty. Our documented investigation provides the evidence needed for warranty claims.
- Historic buildings where original waterproofing has degraded and multiple layers of past repairs make it difficult to determine how the current wall assembly is supposed to perform.
- Multi-tenant properties where identifying the source affects lease obligations and repair responsibility between landlord and tenant.
For commercial properties, our investigation reports include detailed documentation of all methods used, findings at each phase, confirmed sources, moisture mapping data, thermal images, and recommended repair scope. Reports are formatted for property management, insurance adjusters, and engineering review. Call (310) 678-4345 to discuss your situation.
How Much Does Forensic Leak Detection Cost?
|
Service |
Price |
|
Residential forensic leak investigation |
Starting at $600 |
|
Investigation credited toward repair |
$600 credited toward repair cost |
|
ASTM E1105 testing (add-on per area) |
Starting at $500 per test area |
|
Commercial forensic investigation |
Custom quote based on scope |
Forensic investigations cost more than standard inspections because they take more time and use more diagnostic methods. A standard building envelope inspection starts at $450 and resolves most leak sources. Forensic investigation starts at $600 for cases that require the multi-phase elimination protocol, targeted water testing, or multiple site visits.
Your investigation fee is credited toward repair work if you hire Absolute Maintenance & Consulting for the water intrusion repair. Most homeowners who have been through multiple failed repairs find that one thorough forensic investigation costs less than their accumulated previous repair bills.
Call (310) 678-4345 for a consultation about your situation.
Why Choose Absolute Maintenance & Consulting for Forensic Leak Detection?
This is what we do. Absolute Maintenance & Consulting was founded to solve leak problems that other contractors cannot. Our entire business is built around water intrusion investigation and building envelope repair. Forensic leak detection is not an add-on service for us. It is our specialty.
Three decades of solving leak mysteries. Cameron Figgins has investigated hundreds of complex leaks across Los Angeles County. He has seen every type of building envelope failure in every style of LA construction: stucco homes, hillside properties, mid-century flat roofs, multi-story commercial buildings, and historic structures. That pattern recognition speeds up investigation and improves accuracy.
We find it and fix it. Unlike independent testing companies, Absolute Maintenance & Consulting both investigates and repairs. We understand how wall assemblies, flashings, and waterproofing systems are supposed to work because we install and repair them. That construction knowledge makes us better investigators.
Every dollar you spend investigating gets credited toward fixing it. Your investigation fee applies directly to your repair cost. Finding the source and fixing the source is one continuous process at Absolute Maintenance & Consulting, not two separate billing events.
Call Us For Leak Detection Services
Frequently Asked Questions
What is the difference between leak detection and forensic leak detection?
Standard leak detection identifies straightforward leaks through visual inspection and basic testing. Forensic leak detection is a multi-phase investigation for complex leaks where the source is not obvious, previous repairs have failed, or multiple potential sources exist. It uses thermal imaging, moisture mapping, ASTM E1105 testing, and systematic elimination to confirm the exact entry point.
How much does it cost to investigate a leak?
A standard building envelope inspection starts at $450 and resolves most leaks. Forensic leak investigations for complex cases start at $600. Both fees are credited toward repair work. Commercial investigations are quoted based on building size and complexity.
How long does a forensic leak investigation take?
Residential forensic investigations typically require 4 to 8 hours on site. Complex cases may require a second visit for targeted water testing or observation during specific weather conditions. Commercial investigations vary from 1 to 3 days depending on building size and the number of suspect areas.
Why did my previous leak repair fail?
The most common reason previous repairs fail is that the contractor fixed the visible symptom instead of the actual source. Water can enter through a roof flashing failure and travel 15 feet along a rafter before dripping onto a ceiling. If the contractor patches the ceiling stain without tracing the water path back to the roof, the leak returns. Our forensic approach traces every moisture trail back to the building envelope breach so the repair targets the right location.
Do you investigate plumbing leaks?
No. Absolute Maintenance & Consulting specializes exclusively in exterior water intrusion, meaning leaks caused by rain, building envelope failures, and exterior moisture sources. We investigate leaks involving roofs, windows, stucco, flashings, foundations, and decks. For plumbing leaks (pipe failures, slab leaks, appliance connections), we recommend a licensed plumber.
Can you find a leak without tearing out my walls?
In most cases, yes. Thermal imaging, moisture meters, and ASTM E1105 water testing are all non-destructive methods. We find the majority of leak sources without any demolition. In some complex cases, small exploratory openings are helpful to observe the wall assembly directly. We always discuss this with you before making any openings.
If you are buying property in Los Angeles, a building envelope inspection is strongly recommended. Standard home inspections do not include thermal imaging, moisture mapping, or water testing. Hidden water intrusion behind stucco, in crawl spaces, and around windows is common in LA construction and can mean thousands of dollars in repairs that a standard inspection misses. A pre-purchase building envelope inspection gives you the information you need to negotiate repairs or walk away.
Still have questions? Our experts are here to help.
Service Area
Absolute Maintenance & Consulting performs building envelope inspections throughout Los Angeles County, including West Los Angeles, Santa Monica, Venice, Culver City, Beverly Hills, Brentwood, Bel Air, Century City, Hollywood, Silver Lake, Echo Park, Pasadena, Glendale, Studio City, Sherman Oaks, Encino, and the South Bay communities.
Call (310) 678-4345 or email info@leakmoldrepair.com to schedule your building envelope inspection.