Weekly Hands-on How-To powered by KnowHow
How To Perform Initial Water Damage Inspection
Master the first step of mitigation with this expert guide to water damage inspections and documentation

Water damage sites can be chaotic, but you can’t just rush in with extractors and air movers the moment you arrive. Before any drying begins, you need a clear picture of what’s wet, how bad it is, and where the water came from. The faster you can assess the source of damage, and what needs immediate attention, the sooner you can put a smart mitigation plan into motion.
In this weekly How-To, powered by KnowHow, we’re walking through the critical first step of any water damage job: the initial inspection. From identifying moisture pockets to documenting damage for insurance, this guide helps restoration pros perform a thorough, efficient assessment that sets the entire job up for success.
1. Prepare General Information
Before stepping foot on-site, document the essentials. Record the date of the inspection, the inspector’s name, the client or property owner, and the property’s full address. If relevant, note the weather conditions—especially if external flooding may be a factor. This sets the stage for organized documentation and insurance compliance.
2. Gather Necessary Equipment
Show up equipped. Bring a flashlight, moisture meter, infrared (thermal) camera, borescope, hygrometer, and appropriate PPE (gloves and boots). These tools will help you uncover both visible and hidden damage safely and efficiently.
3. Inspect the Affected Areas
Start with a thorough visual inspection of all suspect zones. Then move into a systematic assessment using your tools:
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Moisture Meter: Test affected materials to determine moisture levels. Take comparative readings from unaffected areas to establish a dry standard.
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Thermal Imaging Camera: Scan walls, ceilings, and floors to identify cold spots that may indicate hidden moisture.
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Hygrometer: Measure the relative humidity in different areas. Elevated readings point to excess moisture in the air that needs addressing.
- Borescope: Use this to peek inside wall cavities, beneath cabinets, or behind fixtures to check for damage that’s out of sight.
Also, look for visual cues: staining, mold growth, warped flooring, peeling paint, or sagging ceilings.
4. Identify the Source of Intrusion
Find and document the origin of the water. Is it a burst pipe, a roof leak, or seepage from flooding? Use your flashlight to thoroughly inspect high-risk areas. Mark whether the source was identified, record the cause of loss (e.g., dishwasher overflow), and note the exact location.
5. Determine the Category and Class of Water Damage
Apply IICRC standards to classify what you’re dealing with:
- Category 1: Clean water
- Category 2: Gray water
- Category 3: Black water (contaminated)
Then determine the Class of Water Intrusion:
- Class 1: Minimal absorption
- Class 2: Medium (affects walls up to 24")
- Class 3: Extensive saturation (ceilings, walls, insulation)
- Class 4: Specialty drying needed (hardwood, plaster)
These distinctions help guide the right mitigation and safety procedures. To learn more about Categories of water damage, click here. To learn more about Classes of water damage, click here.
6. Note All Affected Areas
Create a room-by-room log detailing floor types, wall or ceiling involvement, moisture readings, and whether visible damage is present. This level of documentation makes for a clearer scope of work and easier communication with insurance carriers.
7. Document the Findings
Take wide and close-up photos of affected areas, including meter readings and visual damage. Jot down notes on each space. Be as specific as possible—this documentation is crucial for restoration planning, insurance claims, and client transparency.
8. Recommend Next Steps
Based on your findings, outline what comes next. This might include:
- Water extraction
- Structural drying (dehumidifiers, air movers)
- Demolition (damaged drywall or flooring)
- Mold remediation
- Additional assessments (e.g., plumber, roofer)
Clear recommendations give your team and the client a confident, actionable path forward.
Build a Better Foundation For a Smooth Claim with KnowHow
The initial inspection sets the tone for everything that follows. Miss a moisture pocket, and you risk mold. Overlook the source, and you’re back on site in a week. A thorough, well-documented inspection doesn’t just make the job easier—it protects your team, your client, and your bottom line.
KnowHow makes it easier to standardize and train your team on inspections that don’t cut corners. Whether it’s documenting damage, setting a dry standard, or identifying the right equipment for the job, your crew can access step-by-step guidance—right when they need it.
Download this free template or book a demo today to see how KnowHow supports inspections, onboarding, on-the-job support, and SOP management—all in one place.
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