Tag Archives: moisture meter


Evidence of historic water intrusion is something I come across regularly. In reality, it can be tricky (and often impossible) to determine when intrusion first occurred or when it last occurred. Luckily, I have a few tools in my detective handbag to help.

During a recent inspection in San Juan County, I noted evidence of historic water intrusion—presenting as visible water stains and prior patching repairs—at a downstairs bedroom ceiling. 

When I see these kinds of scenarios, one of my most effective tools is the moisture meter. I’ve written about the value of moisture meters in the past, and encourage you to become familiar with them if you are not already.

I’ve experienced a reasonable degree of success after asking previous owners or tenants for historical information related to the issue.

In this case, my meter did not indicate elevated moisture at the time of inspection. Therefore, I recommended that my clients monitor the area for recurrence into the future and to make repairs if noted.

If you have questions or comments about interior issues or home inspections in general, tweet me (@AIHomeInspect).

Detecting water damage with moisture meters

With modern technology- moisture meters and infrared thermography- home inspectors can find water issues that aren’t visible with the naked eye.  This photograph shows underlying saturation adjacent a toilet that needs to be reset with a new wax ring.  Hopefully there isn’t underlying damage; they’ll find out when the toilet is pulled.  I use moisture meters to probe around toilets, showers, sinks, dishwashers, and any suspicious areas to confirm elevated moisture conditions.  It’s a valuable tool for sure.  This photograph was taken at a recent home inspection in Oak Harbor on Whidbey Island.