A survey may cost hundreds. Missing a serious defect can cost thousands. In over 25 years of surveying Leicester properties, I've seen things that no quick mortgage valuation would ever catch. Here are five of the most common — and most costly — issues our in-depth surveys identify: 🔴 1. Roof structural failure Often invisible from the street. Our drone survey has identified sagging rafters, rotten purlins, and widespread felt deterioration on properties described as