Top 5 Keller providers scored across five ranking dimensions.
| Provider | Response Time | Pricing Transparency | Licensing | Service Breadth | Overall |
|---|---|---|---|---|---|
| Window World✓ | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★☆ | ★★★★☆ |
| Renewal by Andersen✓ | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★★☆ | ★★★☆☆ |
| Pella Windows & Doors✓ | ★★★☆☆ | ★★★☆☆ | ★★★★★ | ★★★★☆ | ★★★☆☆ |
| Champion Windows | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★☆ | ★★★★☆ |
| Power Home Remodeling | ★★★☆☆ | ★★★★★ | ★★★★★ | ★★★★☆ | ★★★★☆ |