| Reason | % |
| Good references and reputation | 67.4 |
| Satisfaction guaranteed | 39.5 |
| Provides free estimates | 33.8 |
| In business for a number of years | 32.9 |
| Locally owned and operated company | 32.4 |
| Insured and bonded | 27.9 |
| Member of a professional trade association | 13.3 |
| Certification of professional training | 12.4 |
| Licensed by government | 7.4 |
| Local representative of a national company | 5.7 |
| Other | 4.6 |
| Award-winning company | 3.0 |
| Source: The Gallup Organization | |
| | |
