Since as a builder you are generally held responsible for the defects typically found in completed new homes, it's important to identify the problems and determine with the buyer whose responsibility it is to fix them. The most effective and simple way to do this is a pre-delivery walk-through inspection of the property by the builder and the buyer. The day of – or the day before – the closing is best. The point is to wait until the latest possible moment, but before your responsibilities become less clear. From a logical place, and with pencil and paper in hand, go through the house room by room, checking trim, wall surfaces, ceilings, floors, paint, glass, appliances, mechanical systems, hardware,