Here is a photo of something we see all too often. Poor soil drainage leads to a wet environment in the crawlspace areas beneath the house. This situation can lead to mold growth and indoor air quality problems. Drainage issues can usually be repaired by a drainage contractor… its an expensive repair!
Home inspectors should recommend further evaluation by a drainage contractor. This photo is depicts a condition easily identifiable as a drainage issue. Other signs of drainage problems may not be so readily identifiable so its important to have an experienced inspector crawl beneath the house and ensure there isn’t evidence of current or past water intrusion.