Thinking about adding on. Peek behind the curtain of the construction industry. If you’re a homeowner, landlord, house flipper or property manager contemplating major work, this will save you thousands. These six chapters are excerpts from the book “Contractor Heaven.” That book sheds light on selecting, hiring and managing contractors for everything from half-day projects to home additions. The Six Steps here apply mainly to large projects lasting longer than two weeks. Contractor Heaven also provides dozens of free or low cost design features to ask for during wall-removing renovations, ergonomic improvements that will create a feeling of luxury.