| Rodriguez - Mccann | Rodriguez - Mccann | — | (707) 494 6671 | GC, remodel, ADU | Healdsburg · Sonoma County | — | — |
| Rodriguez Landscaping | Rodriguez Landscaping | — | (707) 477 1239 | Windows, patio, painters | Healdsburg · Sonoma County | — | — |
| Roger A Lueck | Roger A Lueck | — | (707) 570 5090 | Other | Santa Rosa · Sonoma County | — | — |
| Roger Dean Park | Roger Dean Park | — | (707) 478 8006 | GC, remodel, ADU | Healdsburg · Sonoma County | — | — |
| Roger Mollison DBA Rpm Construction And Management | Roger Preston Mollison | — | (415) 716 0734 | GC, remodel, ADU | Rohnert Park · Sonoma County | — | — |
| Rogers Construction | Rogers William | — | (707) 575 0378 | Electricians | Santa Rosa · Sonoma County | — | — |
| Rogers Pool & Spa Service INC | John Wayne Pittman | john@rogerspoolspaservice.com | (707) 823 8345 | Pool | Sebastopol · Sonoma County | — | — |
| Rogers Radiant INC | Steven Rene Rogers | — | (707) 433 1789 | GC, remodel, ADU | Windsor · Sonoma County | — | — |
| Rogers Services | Robert Michael Rogers | — | (707) 695 6902 | HVAC | Sebastopol · Sonoma County | — | — |
| Rogue Painting | Rogue Painting | roguepaintingllc@gmail.com | (239) 920-3956 | Windows, patio, painters | Rohnert Park · Sonoma County | — | — |
| Rohan Wallace & Aherne | Richard Martin Hart | — | (415) 740 4748 | GC, remodel, ADU | Vineburg · Sonoma County | — | — |
| Rojas Landscaping & Maintenance | Rojas Landscaping & Maintenance | — | (707) 815 4437 | Windows, patio, painters | Cotati · Sonoma County | — | — |
| Rojas Painting INC | Rojas Oscar | — | (707) 843 3004 | Windows, patio, painters | Rohnert Park · Sonoma County | — | — |
| Roland Franz Construction | Roland Eric Franz | — | (415) 531 5496 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Rollag Painting INC | Rodney Allen Rollag | — | (707) 585 8698 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Roman Martinez Plumbing | Roman Martinez Plumbing | — | (707) 660 2675 | Other | Cotati · Sonoma County | — | — |
| Roman's Plumbing INC | Roman Vincent Auda Scanagatta | — | (707) 971 0353 | Other | Petaluma · Sonoma County | — | — |
| Romero's Tile & Stone INC | Hugo Bladimir Romero Alfaro | — | (707) 332 8126 | Other | Santa Rosa · Sonoma County | — | — |
| Romo's Construccion INC | Lorenzo Antonio Romo Cervantes | — | (707) 774 5945 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Ron Church Concrete Construction INC | Ronald Alfred Church | — | (707) 486 0158 | Other | Sonoma · Sonoma County | — | — |
| Ron Santos - Builder | Ron Santos - Builder | ron@ronsantosbuilder.com | (707) 874 2956 | GC, remodel, ADU | Occidental · Sonoma County | — | — |
| Ronald Brown Construction | Ronald Craig Brown | — | (707) 433 7932 | GC, remodel, ADU | Windsor · Sonoma County | — | — |
| Ronald Craig Porter Drywall | Ronald Craig Porter Drywall | — | (707) 539 9313 | Other | Santa Rosa · Sonoma County | — | — |
| Ronald L Scoggins DBA Rls Fire Protection Systems | Rls Fire Protection Systems | — | (707) 919 0320 | Other | Santa Rosa · Sonoma County | — | — |
| Ronald Vann Construction | Ronald Ray Vann | — | (707) 292 9101 | GC, remodel, ADU | Healdsburg · Sonoma County | — | — |
| Roof & Gutter Busters INC | Everardo Zuniga | — | (707) 584 3010 | Other roofers | Rohnert Park · Sonoma County | — | — |
| Roof Boss | Roof Boss | weatherbossglobal@gmail.com | (707) 800 9153 | Other roofers | Santa Rosa · Sonoma County | — | — |
| Roof Doctors | Roof Doctors | — | (707) 583-9778 | Other roofers | Windsor · Sonoma County | — | — |
| Roofing Done Right | Juan Antonio Mejia | roofingdonerightsr@gmail.com | (707) 791 0494 | Other roofers | Santa Rosa · Sonoma County | — | — |
| Rooney Construction | Daniel James Rooney | — | (818) 661 7803 | GC, remodel, ADU | Santa Rosa Valley · Sonoma County | — | — |
| Rooney Home Remodeling And Construction | Peter William Rooney | — | (707) 333 5156 | GC, remodel, ADU | Sonoma · Sonoma County | — | — |
| Rooterman Of Sonoma County | Anthony Clayton Morales | — | (707) 495 3133 | Other | Santa Rosa · Sonoma County | — | — |
| Rose Valley Earthworks & Paving | Rose Valley Earthworks & Paving | — | (707) 537 5885 | Other | Windsor · Sonoma County | — | — |
| Rosila G Construction | Prisciliano Garcia Rosila | — | (707) 481 0779 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Ross HVAC Service | Ruslan Potylitsin | — | (707) 494 9460 | HVAC | Rohnert Park · Sonoma County | — | — |
| Ross Recreation Equipment Company INC | Nicholas Brigham Philbin | — | (707) 538 3800 | Other | Santa Rosa · Sonoma County | — | — |
| Rossetti & Sons Construction | Robert Mark Rossetti | — | (707) 483 9078 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Rothur Estate Landscaping INC | Christopher James Stewart | — | (707) 328 1958 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Roux General Contracting INC | Brian Allen Roux | — | (707) 431 9891 | GC, remodel, ADU | Healdsburg · Sonoma County | — | — |
| Rover's Landscaping | Rover's Landscaping | — | (707) 974 6470 | Windows, patio, painters | Petaluma · Sonoma County | — | — |