This contractor process flowchart from EnergySmart Colorado includes the phases of contractor qualifications review and preparation, site work, and follow up.

Instructional step-by-step guide for visiting a home to discuss and install energy efficiency measures.

This guide from Boulder County's EnergySmart service is an example of expectations and guidelines for contractor operations.

On Maryland's Home Performance with ENERGY STAR website, homeowners can review their contractor and experience. These customer reviews, along with contractors' accreditations and services, are published on the website as part of each contractor's information page. Users of the website can search for contractors and sort the results based on homeowner ratings and by geographical location.