Man-hours, labor and material costs for all common plumbing and HVAC work in residential, commercial, and industrial buildings. You can quickly work up a reliable estimate based on the pipe, fittings, and equipment required. Sample estimating and bidding forms and contracts also included. Explains how to handle change orders, letters of intent, and warranties.Follow this linkto view a full description or to place your order. To order by phone, call 248-244-1275.