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  • Writer's pictureBrady Grewe

The Role of Moisture Meters in Water Damage Assessment

Updated: Jul 7

 Moisture Meter Detecting Wet Wood
Moisture Meter Detecting Wet Wood

Water damage can be a homeowner's worst nightmare, leading to costly repairs and potential health hazards if not addressed promptly. One essential tool in the arsenal of water damage restoration professionals is the moisture meter. At Renew by Grewe Restoration, we rely on moisture meters to accurately assess the extent of water damage and develop an effective remediation plan. During a recent job I had a client tell me that the only water damage was right underneath the dishwasher. I used a moisture meter to determine that the entire kitchen floor actually had water damage. Thankfully we removed the entire kitchen floor because mold growth had started all the way through the floor of the kitchen. Here's a closer look at how these indispensable devices work and why they are crucial in water damage assessment.

What is a Moisture Meter?

A moisture meter is a device used to measure the moisture content in various materials, such as wood, drywall, and concrete. These meters come in two primary types: pin-type and pinless.

  • Pin-Type Moisture Meters: These use two or more metal probes (pins) that are inserted into the material. The meter measures the electrical resistance between the pins to determine moisture levels. Pin meters can come with different attachments to get into tricky to read spaces around a corner or deep into structural building materials. 

  • Pinless Moisture Meters: These use an electromagnetic sensor pad that is pressed against the material. The meter measures the moisture content based on the changes in the electromagnetic field.

Why Moisture Meters are Essential in Water Damage Assessment

  1. Accurate Detection of Hidden Moisture Water damage is often more extensive than what is visible to the naked eye. Moisture meters help identify hidden moisture in walls, floors, and ceilings. This is crucial because undetected moisture can lead to mold growth and structural damage over time. By pinpointing areas with elevated moisture levels, professionals can ensure thorough drying and prevent future problems.

  2. Effective Drying and Restoration Plans Knowing the exact moisture content of affected materials allows restoration professionals to develop effective drying strategies. Moisture meters provide data that helps determine the necessary equipment and duration for drying. This targeted approach ensures that all affected areas are properly dried, reducing the risk of secondary damage and mold growth.

  3. Verification of Drying Results Moisture meters are used not only during the initial assessment but also throughout the drying process. Regular readings are taken to monitor the progress and effectiveness of drying efforts. This continuous monitoring helps adjust the restoration plan as needed and ensures that materials reach acceptable moisture levels before the job is considered complete.

  4. Preventing Mold Growth Mold thrives in damp environments, and it can start growing within 72 hours after water damage occurs. By using moisture meters, professionals can detect and eliminate moisture pockets, reducing the likelihood of mold development. This is particularly important for maintaining indoor air quality and protecting the health of the home's occupants.

  5. Insurance and Documentation Accurate moisture readings are essential for documenting the extent of water damage and the effectiveness of remediation efforts. This documentation is often required by insurance companies to process claims. Moisture meters provide reliable data that can support claims and demonstrate that proper steps were taken to mitigate damage. Restoration professionals are trained to show the correct data from moisture meter readings to ensure your loss is covered by insurance when it is applicable to your coverage. 

How Renew by Grewe Restoration Uses Moisture Meters

At Renew by Grewe Restoration, we use state-of-the-art moisture meters as part of our comprehensive water damage assessment process. Our trained technicians conduct thorough inspections to identify all areas affected by water damage. By using moisture meters, we ensure that no moisture goes undetected, and we can develop a tailored restoration plan to address the specific needs of each project.


Moisture meters play a critical role in the assessment and remediation of water damage. These tools provide the accurate data needed to detect hidden moisture, plan effective drying strategies, prevent mold growth, and document the restoration process. At Renew by Grewe Restoration, we are committed to using the latest technology and techniques to restore your home to its pre-damage condition. If you suspect water damage in your home, don't hesitate to contact us for a thorough inspection and expert remediation services.


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