Ad budgets are tight for contractors, so why waste those dollars marketing to people who may or may not buy from you? Keep it simple and promote your contracting business to people who are READY to buy!
Contractors who provide emergency service, i.e., plumbers, electricians, tree removal companies, should provide as local a phone number as they can to present themselves in areas with multiple area codes and prefixes.
The way you develop content for specific pages on your site is dependent on what type of traffic you want to attract.