Pest and Dry Rot /
Wood Destroying Organisms


The Washington State Department of Agriculture governs the Wood Destroying Organism Inspection (WDO) portion of a Standard Home Inspection (or performed in isolation from a home inspection).

As determined by the State, the WDO Inspection/Report covers the following items:

1. Wood Destroying Organisms
a. Wood Decay Fungi
b. Wood Destroying Insects (such as Carpenter Ants, Termites, etc.)

2. Conducive Conditions
a. Points out the conditions which brought about the establishment of WDO’s, or
b. Points out conditions which may bring about the establishment of WDO’s.

All Nickelsen Home Inspections, LLC inspectors are licensed by the Washington State Department of Agriculture to perform these inspections. We are also members of the Washington State Pest Control Association, which gives us and our clients more specific Standards of Practice, thus enabling our inspection firm to better serve you and your needs.


According to the Washington State Department of Agriculture, “mold” is not considered a WDO and, as such, is not specifically included in a WDO inspection or report. However, many of the conditions that are conducive to the presence of mold are also conditions that are conducive to WDO’s, and, as such, mold—if visualized—will be noted of in a Nickelsen Home Inspections, LLC report, but only to the extent that it is a sign of conditions that may aid in the presence of WDO’s.

“Mold Inspections”, per se, and testing would best be performed by a licensed and insured company that specifically does this type of work. If seeking a “mold inspector” be sure that they have specific insurance coverage for “mold” and be sure that they have the credentials to perform the work.



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Nickelsen Home Inspections is proud to be serving all of western Washington and northwestern Oregon as conduits for educated real estate transactions. We perform residential and commercial inspections in more areas than any other home inspection firm in the Northwest, including all of the following counties and cities: Clark County, Cowlitz County, Pacific County, Skamania County, Klickitat County, Yakima County, Thurston County, Pierce County, Lewis County, Kittitas County, Chelan County, Multnomah County, and more! Our Home Inspectors also perform home inspection services in Vancouver, Washington, Kelso, Longview, Camas, Battle Ground, Washougal, Carson, Kalama, LaCenter, Ridgefield, Long Beach, Portland Oregon, Hood River, The Dalles. Gresham, Wenatchee, Brush Prairie, Centralia, Olympia, Seattle, Woodland, Stevenson, Puyallup, Tacoma, Lacey, Renton, Issaquah, Federal Way, Lakewood, Enumclaw, and more! We also provide pest and dryrot or “termite” inspections, prelisting or seller’s inspections, radon inspections, construction draw inspections, lender required inspections, siding or roof inspections, commercial building inspections, and other inspection services. All our inspectors are licensed by the Washington State Department of Agriculture, and all are candidates or members of ASHI - American Society of Home Inspectors and some are also certified by NACHI - National Association of Certified Home Inspectors.