I had derl inspect a 1950's home that I knew had some problems. His evaluation led me to withdraw my offer. The house needed major foundation repair and had numerous hidden problems I had failed to appreciate. He also documented them photographically for my review and provided a clear report of the problems. I bought a different house as result and have been very satisfied. His review for this house was dead on as well and there have been no surprises. The first house eventually sold (even after foundation repairs) for thousands less than I had bid. He is a thorough and extremely competent professional! Highly Recommended!