Comfort Systems USA, Inc. (NYSE:FIX) provides heating, ventilation and air conditioning (HVAC) installation, maintenance, repair and replacement services within the mechanical services industry. 

The Company has 38 operating units in 72 cities and 86 locations throughout the United States. 
The Company operates primarily in the commercial, industrial and institutional HVAC markets. In addition to standard HVAC services, it also provides specialized applications, such as building automation control systems, fire protection, process cooling, electronic monitoring and process piping. 
The company is publicly traded on the New York Stock Exchange under the symbol ‘FIX’.

3.1.1.General Environmental (PESTEL) Analysis (2-4 pages): This section needs to include a
complete analysis of the general external environment. Please refer to figure 3.1 and Table 3.1 on pages 38-39 of your textbook (5th Ed.). You should explicitly analyze how any trend you identify in each of the segments in the external environment may affect the industry. You need to explicitly state the implications. For example, if the industry you are analyzing is personal computers and you see an expanding economy in some emerging economies, but a recession and declining disposable incomes in other economies, your analysis should include how these trends are likely to influence the personal computer industry. Do not discuss specific companies in this section. At the end of this section, you need to identify the industry top two driving forces (DFs). A driving force is an external environment change (e.g. change in a governmental policy or emergence of a new breakthrough technology) which may significantly change the rule of the game in the industry competition. Please refer to Table 3.2 and pages 52-54 of your textbook (5th Ed.).
* Political Segment
* Economic Segment
* Socio-Cultural and Demographic Segment.

Part I includes an analysis of the general environment, the industry and the assigned firms competitors. You are expected to provide a specific definition of the industry and an in-depth analysis of the industrys current and future outlook. Your focus in Part I is the external environment.