| Wc Roofing LLC | William Glen Ii Calkins | — | (323) 261-7193 | Other roofers | Somerset · El Dorado County | — | — |
| Weather-tite Roofing | Travis Wayne Peer | — | (916) 635 9810 | Other roofers | Shingle Springs · El Dorado County | — | — |
| Weatherford Electric | Russell Raymond Weatherford | — | (530) 919 7867 | Electricians | Camino · El Dorado County | — | — |
| Weber Home Improvement LLC | Scott Andrew Weber | — | (530) 417 3361 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| Weik Custom Painting & Paperhanging | Weik Custom Painting & Paperhanging | — | (530) 416 1657 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| Weiland Electric | Joshua Steven Weiland | — | (408) 839 0495 | Electricians | El Dorado Hills · El Dorado County | — | — |
| Wells Electric | Edward Patrick Wells | — | (530) 906 1236 | HVAC | Shingle Springs · El Dorado County | — | — |
| West Canyon Construction | Lemus Jesus | — | (530) 409 5658 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| West Coast Air | West Coast Air | — | (916) 919 7071 | HVAC | Shingle Springs · El Dorado County | — | — |
| West Coast Siding Co | Louis Michael Heinzer | — | (916) 261 2045 | Windows, patio, painters | Diamond Springs · El Dorado County | — | — |
| West Coast Tile & Stone | Richard Brian Albert Perryman | — | (916) 910 5451 | Other | Shingle Springs · El Dorado County | — | — |
| West Construction | David Dean West | — | (530) 409 9743 | GC, remodel, ADU | Pollock Pines · El Dorado County | — | — |
| West Slope Construction Incorporated | Michael William Weidert | — | (530) 368 0671 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| Western Broadband Communications | Western Broadband Communications | — | (530) 392 1559 | Electricians | Placerville · El Dorado County | — | — |
| Western Excavation & Paving | Western Excavation & Paving | — | (530) 672 2700 | Other | Placerville · El Dorado County | — | — |
| Western Paving | Western Paving | info@westernpaving.com | (530) 400 8111 | Other | South Lake Tahoe · El Dorado County | — | — |
| Western Sierra Electric INC | Braun Christopher | westernsierraelectric@gmail.com | (530) 644 5938 | Electricians | Pollock Pines · El Dorado County | — | — |
| Western Sierra Pool & Spa Systems Service & Repair | John Joseph Jr Emlay | — | (916) 764 7852 | Pool | Pollock Pines · El Dorado County | — | — |
| Western Sierra Tree Service INC | Miguel Angel Ventura | — | (530) 409 5488 | Tree | El Dorado · El Dorado County | — | — |
| Western Sign Company INC | Todd Michael Johnston | — | (530) 622 1420 | Other | Diamond Springs · El Dorado County | — | — |
| Western Tree | Vyacheslav Anchuk | — | (916) 757 2324 | Other | El Dorado Hills · El Dorado County | — | — |
| Western Water Features INC | Daniel Kenneth Parkes | — | (916) 939 1600 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| White Clover Construction | Geoffrey Robert Petty | — | (530) 368 4857 | GC, remodel, ADU | Garden Valley · El Dorado County | — | — |
| White Pine Landscaping | White Pine Landscaping | — | (650) 438 5229 | Windows, patio, painters | Shingle Springs · El Dorado County | — | — |
| Wichert Custom Homes & Remodels | Wichert Custom Homes & Remodels | — | (916) 458 1239 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Wichert Homes | Craig Charles Wichert | craig@wicherthomes.com | (916) 439 3472 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Wild Peak Energy | Yaroslav Y Yasinskiy | — | (916) 995 9655 | Electricians | El Dorado Hills · El Dorado County | — | — |
| Wildwood Construction | Campbell Wayne Sherrod | interested@domainmarket.com | (530) 409 7962 | GC, remodel, ADU | Rescue · El Dorado County | — | — |
| Wilfley Construction | Charles Lloyd Wilfley | — | (530) 333 0355 | GC, remodel, ADU | Garden Valley · El Dorado County | — | — |
| Will Smith | Will Smith | — | (530) 263 0858 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| William Charles Mott Co | William Charles Mott | — | (530) 417 1867 | Other | Placerville · El Dorado County | — | — |
| William Demus Construction | William Elmer Iii Demus | — | (530) 577 5464 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| William Jeffrey May Construction | William Jeffrey May | — | (530) 409 0872 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| William M Campbell | William M Campbell | — | (530) 320 3790 | Other | Lotus · El Dorado County | — | — |
| William Ready | William Ready | info@williamready.com.au | (408) 499 3477 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| William Tucker | William Tucker | — | (916) 390 2997 | GC, remodel, ADU | Greenwood · El Dorado County | — | — |
| Wilson Gutter Services | Brian Patrick Wilson | — | (530) 721 0527 | Other | South Lake Tahoe · El Dorado County | — | — |
| Wilson Gutters | Wilson Gutters | — | (530) 541 3488 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Wilson Steven M Concrete | Wilson Steven M Concrete | — | (916) 505 7742 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Wilsons Asphalt INC | James Lloyd Wilson | — | (530) 748 5758 | Other | Diamond Springs · El Dorado County | — | — |