| Western Tree Service | Garcia-loeza Efren | westerntree@hotmail.com | (805) 614 1954 | Tree | Santa Maria · Santa Barbara County | — | — |
| Westpac Development Corporation | Mark Kenneth Derscheid | — | (805) 898 8820 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| Westridge Construction | Ronald Ramo Rebaldo | — | (805) 714 6896 | GC, remodel, ADU | Santa Maria · Santa Barbara County | — | — |
| Westward Landscape Co | Zuares Victor | info@westwardlandscape.com | (805) 717 4163 | Windows, patio, painters | Lompoc · Santa Barbara County | — | — |
| Wet Stone Concrete | Duke Albert Overbach | — | (805) 770 0334 | Other | Santa Barbara · Santa Barbara County | — | — |
| Wheatley Excavation INC | Brandon R Wheatley | — | (805) 331 9089 | Other | Carpinteria · Santa Barbara County | — | — |
| White Caps Painting | White Caps Painting | — | (805) 284 7904 | Windows, patio, painters | Buellton · Santa Barbara County | — | — |
| White Electric INC | Joey Justin White | — | (805) 757 0132 | Electricians | Lompoc · Santa Barbara County | — | — |
| Whitney Construction Company | Thomas Philip Whitney | — | (805) 215 6557 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| Whorf Construction | William Jack Whorf | — | (805) 636 2493 | GC, remodel, ADU | Goleta · Santa Barbara County | — | — |
| Wick Boiler Service INC | Brett Andrew Parkinson | — | (805) 965 4949 | HVAC | Santa Barbara · Santa Barbara County | — | — |
| Wicks Roofing And Solar LLC - Santa Barbara | Wicks Roofing And Solar LLC - Santa Barbara | — | (805) 973-9037 | Other roofers | Santa Barbara · Santa Barbara County | — | — |
| Widrig Construction | Steven Patrick Widrig | — | (805) 217 3044 | GC, remodel, ADU | Solvang · Santa Barbara County | — | — |
| Wieckowski Construction | Paul Michael Wieckowski | — | (805) 896 3097 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| Wighton's Electric Plumbing Heating And Air | Wighton's Electric Plumbing Heating And Air | — | (805) 292-2327 | HVAC | Santa Barbara · Santa Barbara County | — | — |
| Wild Sage Landscaping | Wild Sage Landscaping | — | (805) 741 6378 | Windows, patio, painters | Santa Ynez · Santa Barbara County | — | — |
| William Arellanes | William Arellanes | — | (805) 259 7732 | Windows, patio, painters | Santa Barbara · Santa Barbara County | — | — |
| William B Lopez Huicochea | William B Lopez Huicochea | — | (805) 697 6765 | GC, remodel, ADU | Buellton · Santa Barbara County | — | — |
| William Cook Development INC | Paticia L Cook | — | (310) 729 4441 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| William Douglas Clay | William Douglas Clay | — | (805) 748 2630 | Other | Santa Maria · Santa Barbara County | — | — |
| William G Hames General Engineering INC | William Gilbert Jr Hames | — | (805) 736 9201 | Tree | Buellton · Santa Barbara County | — | — |
| William H Mc Carty Electric INC | William Hayden Mc Carty | — | (805) 568 3894 | Electricians | Santa Barbara · Santa Barbara County | — | — |
| William J Dalziel | William J Dalziel | — | (805) 698 4318 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| William J Rourke | William J Rourke | — | (805) 568 0939 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| William Schaal | William Schaal | — | (805) 280 6069 | Other | Santa Barbara · Santa Barbara County | — | — |
| Williams Mechanical | Williams Mechanical | — | (805) 314 9267 | Other | Casmalia · Santa Barbara County | — | — |
| Willie Quinn Masonry | Willie Quinn Masonry | — | (805) 331 2127 | Other | Santa Barbara · Santa Barbara County | — | — |
| Willis Cabinetry INC | Susan Baranowski Willis | — | (805) 689 8564 | Other | Carpinteria · Santa Barbara County | — | — |
| Wilson Environmental Contracting INC | Daniel B Wilson | — | (805) 957 4729 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| Wilsons Construction | Rodney Dale Wilson | — | (805) 714 2412 | GC, remodel, ADU | Santa Maria · Santa Barbara County | — | — |
| Winchester Canyon Construction INC | Eric Alan Wulff | — | (805) 452 2982 | Other | Goleta · Santa Barbara County | — | — |
| Winslow Pool & Spa | Winslow Pool & Spa | — | (805) 686 9995 | Pool | Santa Ynez · Santa Barbara County | — | — |
| Winther Steel | Winther Steel | — | (805) 455 1125 | Other | Solvang · Santa Barbara County | — | — |
| Wise Plumbing | Arthur Abram Wise | — | (805) 574 4953 | GC, remodel, ADU | Santa Maria · Santa Barbara County | — | — |
| Wm Rieck Plumbing Co | Joseph Antonio Leiting | — | (805) 736 2337 | Other | Lompoc · Santa Barbara County | — | — |
| Wolf & Sons Electric INC | Jeffrey William Wolf | — | (805) 717 0049 | Electricians | Lompoc · Santa Barbara County | — | — |
| Wolfenden Construction INC | Adam Elijah Wolfenden | — | (949) 933 6132 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| Woodall Building & Design INC | Benjamin Nicholas Woodall | — | (805) 453 6318 | GC, remodel, ADU | Solvang · Santa Barbara County | — | — |
| Woodcrafted Flooring Co | Ryan Darrell Reed | — | (805) 684 6565 | Other | Carpinteria · Santa Barbara County | — | — |
| Woodhawk Construction | Edilberto Alonzo Martinez | — | (805) 621 2924 | GC, remodel, ADU | Santa Maria · Santa Barbara County | — | — |