| Westcom Systems INC | Harry Anthony Jr Massucco | sales@westcomsystems.com | (559) 222 1100 | Electricians | Fresno · Fresno County | — | — |
| Westech Systems INC | Helder Fernando Domingos | — | (559) 455 1720 | Electricians | Clovis · Fresno County | — | — |
| Western Building Materials Co | Darin Robert Lake | — | (559) 454 8500 | GC, remodel, ADU | Fresno · Fresno County | — | — |
| Western Design | Western Design | — | (559) 485 2220 | GC, remodel, ADU | Fresno · Fresno County | — | — |
| Western Electrical Company LLC | Matthew Lee Watterson | — | (559) 321 8735 | Electricians | Clovis · Fresno County | — | — |
| Western Underground Corp | John Henry Evanski | — | (707) 451 8111 | Other | Fresno · Fresno County | — | — |
| Westlake Builders Co | Samuel Khachatryan | — | (707) 363 7000 | GC, remodel, ADU | Fresno · Fresno County | — | — |
| Westpeak Construction | Anthony Rivera | — | (559) 231 4490 | GC, remodel, ADU | Fresno · Fresno County | — | — |
| Wet Walls | Wet Walls | — | (559) 281 8167 | Windows, patio, painters | Fresno · Fresno County | — | — |
| Wfo Carpentry | Wfo Carpentry | — | (559) 287 1878 | Other | Fresno · Fresno County | — | — |
| Wharton Construction | Richard Allan Wharton | curtis@wharton-construction.com | (559) 681 0908 | GC, remodel, ADU | Clovis · Fresno County | — | — |
| Whitfield Hauling Services | James Lee Whitfield | — | (559) 307 4304 | Other | Fresno · Fresno County | — | — |
| Whitney Construction | Louis Neville Whitney | — | (559) 360 8355 | GC, remodel, ADU | Fresno · Fresno County | — | — |
| Wild Electric Incorporated | Rick Lewis Merlo | — | (559) 251 7770 | Electricians | Fresno · Fresno County | — | — |
| Wildwood Aquatech Pools INC | Jeffery John Kearns | — | (559) 439 7311 | Pool | Fresno · Fresno County | — | — |
| Wildwood Fence | Wildwood Fence | wildwoodfence@gmail.com | (559) 281 0383 | Other | Kerman · Fresno County | — | — |
| Willems Custom Cabinet | Randal James Willems | — | (559) 255 5574 | Other | Fresno · Fresno County | — | — |
| Willems Kustom Woodworking | Willems Kustom Woodworking | — | (559) 453 3359 | Other | Clovis · Fresno County | — | — |
| Willems Painting | Willems Painting | — | (559) 731 6950 | Windows, patio, painters | Reedley · Fresno County | — | — |
| William Alan Struck Construction | William Alan Struck | — | (559) 346 0136 | GC, remodel, ADU | Fresno · Fresno County | — | — |
| William J Bryant Construction INC | William Joseph Bryant | — | (559) 475 7777 | Other roofers | Clovis · Fresno County | — | — |
| William Sanders | William Sanders | — | (559) 978 8000 | GC, remodel, ADU | Clovis · Fresno County | — | — |
| Williams Electric | Caleb Michael Williams | info@williams-electric.com | (209) 304 8005 | Electricians | Auberry · Fresno County | — | — |
| Williams Excavation | Clarence James Williams | — | (559) 978 5163 | Other | Fresno · Fresno County | — | — |
| Williams Fence Company | Tyran Daniel Williams | — | (559) 292 5951 | Other | Fresno · Fresno County | — | — |
| Willie D's Plumbing | Willie D's Plumbing | — | (408) 913 5526 | Other | Kingsburg · Fresno County | — | — |
| Willowood Consulting INC DBA Valley Power Solutions | Miguel Adrian Garcia Meza | — | (559) 408 4669 | Electricians | Fresno · Fresno County | — | — |
| Wills Construction | Adam Lee Wills | — | (559) 645 0401 | GC, remodel, ADU | Fresno · Fresno County | — | — |
| Wills Rebar INC | Jimmy Garcia | — | (559) 292 3555 | Other | Fresno · Fresno County | — | — |
| Wilson Fire Sprinkler Company INC | Lori Janene Houck | — | (559) 274 2137 | Other | Selma · Fresno County | — | — |
| Wilson Homes INC | Leo Allen Wilson | — | (559) 224 7550 | GC, remodel, ADU | Fresno · Fresno County | — | — |
| Wilson's Roofing | Cody Thomas Wilson | — | (559) 240 4012 | Other roofers | Fresno · Fresno County | — | — |
| Window Solutions | Window Solutions | — | (559) 352 7725 | Other | Fresno · Fresno County | — | — |
| Window World Of Fresno | Window World Of Fresno | fresno@windowworld.com | (559) 294-0991 | Windows, patio, painters | Fresno · Fresno County | — | — |
| Wjb Construction INC | Joshua Elmer Kloster | — | (559) 836 9199 | GC, remodel, ADU | Sanger · Fresno County | — | — |
| Wm B Saleh Co | Katherine Ortiz Lopez | — | (559) 255 2046 | Windows, patio, painters | Fresno · Fresno County | — | — |
| Wm B Saleh Painting INC | Nathan Danniel Guevara | — | (831) 384 1552 | Windows, patio, painters | Fresno · Fresno County | — | — |
| Wml & Webcor A Joint Venture | W M Co Lyles | — | (559) 748 1900 | GC, remodel, ADU | Fresno · Fresno County | — | — |
| Wolf Construction INC | Kerry Paul Wolf | — | (559) 323 1952 | GC, remodel, ADU | Clovis · Fresno County | — | — |
| Wolf Tree Service | Brendan Benn William Wolf | — | (559) 304 4560 | Tree | Fresno · Fresno County | — | — |