| Saw - Tooth Hardwood Floors | Saw - Tooth Hardwood Floors | — | (707) 787 8999 | Other | Santa Rosa · Sonoma County | — | — |
| Sawyer Construction | Kenneth Harvey Sawyer | — | (707) 824 8541 | GC, remodel, ADU | Sebastopol · Sonoma County | — | — |
| Sawyer's Painting | Sawyer's Painting | — | (707) 480 8375 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Sbragia Septic Services LLC | Jonathan Flores | — | (707) 431 0959 | Other | Santa Rosa · Sonoma County | — | — |
| Sc Barns Buildings And Fence | Gary Eugene Hartley | — | (707) 523 3513 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Sc Hansen Construction | Stephen Christopher Hansen | — | (707) 953 8046 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Scandia Landscaping | Scandia Landscaping | — | (707) 210 4572 | Windows, patio, painters | Sonoma · Sonoma County | — | — |
| Scandia Landscaping INC | Conny Sven Hakan Gustafsson | — | (707) 996 7298 | Windows, patio, painters | Boyes Hot Springs · Sonoma County | — | — |
| Scanlan Building And Remodeling | Scanlan Building And Remodeling | — | (415) 601 8095 | Electricians | Petaluma · Sonoma County | — | — |
| Sccmd LLC | Ray Isaac Martinez | — | (707) 695 9003 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Scenic Screens INC | Ryan Alan Weeks | interested@domainmarket.com | (707) 570 9771 | Other | Sonoma · Sonoma County | — | — |
| Scgc DBA Sonoma County General Construction | William Victor Palmer | — | (707) 889 8383 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Schaefer Engineering INC | John Bernard Schaefer | — | (707) 849 1975 | Other | Santa Rosa · Sonoma County | — | — |
| Schafer Electric Services INC | Benjamin Michael Schafer | — | (707) 545 3300 | Electricians | Sonoma · Sonoma County | — | — |
| Schaffer Construction | Glenn Michael Schaffer | — | (707) 477 8909 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Schaffer Painting | Schaffer Painting | jeff@schafferpainting.com | (415) 377 6665 | Windows, patio, painters | Fulton · Sonoma County | — | — |
| Schefer Radiant | Schefer Radiant | +ca+95407+brad@scheferradiant.com | (707) 546 3444 | HVAC | Santa Rosa · Sonoma County | — | — |
| Schellinger Construction Co | William Roddy Schellinger | — | (707) 545 1600 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Schettig Construction | Patrick John Schettig | — | (510) 847 9572 | GC, remodel, ADU | Sonoma · Sonoma County | — | — |
| Schielein Builders | Schielein Builders | — | (707) 695 3780 | GC, remodel, ADU | Glen Ellen · Sonoma County | — | — |
| Schilly Construction INC | Gregory James Schilly | — | (415) 309 9420 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Schoen Enterprises INC | Jack Gerard Jr Schoen | — | (805) 217 9971 | Other | Santa Rosa Valley · Sonoma County | — | — |
| Schotka Construction INC | Diane Arlene Schotka | — | (707) 265 6977 | Other | Rohnert Park · Sonoma County | — | — |
| Schuster's Roost Painting Company | Joseph Clement Schuster | — | (707) 217 1253 | Windows, patio, painters | Petaluma · Sonoma County | — | — |
| Scott A G LLC | Susan Bea Burch | impallari@gmail.com | (707) 545 4519 | Other | Santa Rosa · Sonoma County | — | — |
| Scott Alton Electric | Scott Russell Alton | — | (707) 548 0492 | Electricians | Rohnert Park · Sonoma County | — | — |
| Scott Anderson Landscape Maintenance INC | Scott Adam Anderson | — | (707) 343 1840 | Windows, patio, painters | Sonoma · Sonoma County | — | — |
| Scott C Shelley Construction | Scott C Shelley | petalumacontractor@gmail.com | (707) 769 9659 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Scott Charles Pond-mcpherson | Scott Charles Pond-mcpherson | — | (707) 696 6073 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Scott Clower And Associates | Scott Lewis Clower | — | (707) 538 5538 | GC, remodel, ADU | Kenwood · Sonoma County | — | — |
| Scott Cramer Plumbing | Scott Cramer Plumbing | — | (707) 778 8789 | Other | Petaluma · Sonoma County | — | — |
| Scott Gabaldon Construction | Scott Lee Gabaldon | — | (707) 494 9159 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Scott James Bunting | Scott James Bunting | — | (707) 953 9191 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Scott Matthews | Scott Matthews | — | (415) 320 0385 | GC, remodel, ADU | Penngrove · Sonoma County | — | — |
| Scott Mc Donald Construction | Scott Alvin Mc Donald | — | (707) 477 9217 | Other | Santa Rosa · Sonoma County | — | — |
| Scott Poulson Plumbing | Scott Poulson Plumbing | — | (707) 829 9675 | Other | Sebastopol · Sonoma County | — | — |
| Scott Sangalli Building | Scott Sangalli Building | — | (707) 799 7666 | GC, remodel, ADU | Forestville · Sonoma County | — | — |
| Scott Seaver Fine Landscaping | Scott Seaver Fine Landscaping | — | (707) 338 2444 | Windows, patio, painters | Petaluma · Sonoma County | — | — |
| Scott Silva Plumbing | Scott Silva Plumbing | scottsilvaplumbing@gmail.com | (707) 480 9605 | Other | Rohnert Park · Sonoma County | — | — |
| Scott Torgerson Painting | Scott Torgerson Painting | — | (707) 433 5893 | Windows, patio, painters | Cloverdale · Sonoma County | — | — |