| Wayne Construction Group | Wayne Jeffrey Sjolund | — | (916) 529 2267 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Wayne F Davis Home Repair | Wayne F Davis Home Repair | — | (916) 599 3365 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Wayne P Lukins Construction | Wayne Paul Lukins | — | (916) 778 9336 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| We Got You Covered INC | James Dean Alexander | — | (916) 240 4835 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Weather Guard Roofing | Alan Lee Washburn | — | (916) 274 9868 | Other roofers | Rocklin · Placer County | — | — |
| Weavco Construction | Edward William Weaver | — | (530) 878 6242 | GC, remodel, ADU | Applegate · Placer County | — | — |
| Weaver Construction | James Gareth Weaver | weaverconst1@embarqmail.com | (916) 275 1601 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Webb & Associates Network Services INC | Kristina Marie Webb | — | (916) 751 9192 | Other | Rocklin · Placer County | — | — |
| Webb Electrical Service INC | Robert Wayne Webb | — | (530) 367 5433 | Electricians | Foresthill · Placer County | — | — |
| Weber Builders | Weber Builders | — | (916) 781 7821 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Wechsler Construction | Benjamin Joseph Wechsler | — | (530) 906 6224 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Wechsler Custom Homes | Benjamin Joseph Wechsler | — | (530) 906 6224 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Weiss Construction | Seth Julian Weiss | — | (916) 741 9279 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Welco Builders | Glen Stanley Wells | info@welcobuilders.com | (916) 788 4480 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Welling Construction | Brent Erich Welling | — | (530) 581 5555 | GC, remodel, ADU | Tahoe City · Placer County | — | — |
| Wells Construction INC | Glen Stanley Wells | wells@wellsconstruction.com | (916) 788 4480 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Wellwood Floors | Wellwood Floors | — | (916) 465 1063 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Wenpro Plumbing INC | Wen Chen | wenproplumbing@gmail.com | (415) 530 9306 | Other | Roseville · Placer County | — | — |
| Wenstrom Construction INC | Eric Edward Wenstrom | — | (916) 257 5225 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Wes Flooring INC | Bontei Vasyl | flooringwes@gmail.com | (916) 583 4144 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Wes Jones Construction | Wesley Ryan Jones | — | (530) 263 4640 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Wesley Leroy Howard Jr | Wesley Leroy Howard Jr | — | (916) 531 3911 | Other | Lincoln · Placer County | — | — |
| West Build Glass | West Build Glass | — | (916) 980 7414 | Windows, patio, painters | Roseville · Placer County | — | — |
| West Coast Concrete Services INC | Todd Joseph Royer | — | (530) 308 1635 | Other | Penryn · Placer County | — | — |
| West Coast Construction Pro Build | James Edward Mateush | — | (916) 626 7146 | GC, remodel, ADU | Roseville · Placer County | — | — |
| West Coast Door & Hardware INC | Shad Gabriel Schoer | — | (916) 759 9775 | Other | Loomis · Placer County | — | — |
| West Coast Electric | Dennis Michael Jr Drinnen | admin@westcoastcompanies.com | (916) 768 2541 | Electricians | Roseville · Placer County | — | — |
| West Coast Fire Protection Systems Co INC | Jaymee Marie Lipsmeyer | — | (530) 823 5022 | Other | Auburn · Placer County | — | — |
| West Coast Heating And Air | West Coast Heating And Air | — | (925) 768 4326 | HVAC | Roseville · Placer County | — | — |
| West Coast Kitchen And Bath | Brennan Joseph Mccurdy | — | (916) 893 7310 | GC, remodel, ADU | Auburn · Placer County | — | — |
| West Coast Painting & Decorating INC | Scott Lee Anderson | — | (916) 632 2665 | Windows, patio, painters | Rocklin · Placer County | — | — |
| West Coast Removal | Jennifer Dawn Ellen Ragsdale | info@westcoastremoval.com | (916) 631 7600 | Other | Lincoln · Placer County | — | — |
| West Coast Signal INC | Brittany Adelle Stewart | — | (916) 580 4004 | Other | Roseville · Placer County | — | — |
| West Coast Sustainable Builders | West Coast Sustainable Builders | — | (916) 622 2580 | Electricians | Lincoln · Placer County | — | — |
| West Engineering | Jeremy Ryan Jaeger | yolandie@west-engineering.com | (916) 923 3437 | Other | Roseville · Placer County | — | — |
| West Pacific Cabinets INC | Steven Allan Dietz | — | (916) 652 6840 | Other | Loomis · Placer County | — | — |
| West Shore Plumbing Company | Tony Lee Fagg | — | (530) 318 7550 | Other | Tahoma · Placer County | — | — |
| West Slope Water Works INC | John Alexander Weddle | services@westslopewaterworks.com | (530) 305 6659 | Other | Auburn · Placer County | — | — |
| West Valley Striping | West Valley Striping | — | (916) 865 8028 | Other | Auburn · Placer County | — | — |
| West Works | West Works | — | (916) 220 4616 | Windows, patio, painters | Roseville · Placer County | — | — |