| The Remodel Guild | The Remodel Guild | — | (707) 287 2879 | GC, remodel, ADU | Vacaville · Solano County | — | — |
| The Robert Whitman Company | Robert Edward Whitman | — | (707) 328 3406 | GC, remodel, ADU | Fairfield · Solano County | — | — |
| The Window Guild LLC DBA Jamz Construction | Adel Alami | — | (707) 452 8512 | GC, remodel, ADU | Fairfield · Solano County | — | — |
| The Wright Way Painting | The Wright Way Painting | support@webador.com | (707) 305 3820 | GC, remodel, ADU | Vacaville · Solano County | — | — |
| Third Gen Roofing | Antonio Jr Escalante | — | (707) 655 7468 | Other roofers | Vallejo · Solano County | — | — |
| Thomas Christopher Tilton | Thomas Christopher Tilton | — | (415) 404 8715 | GC, remodel, ADU | Vallejo · Solano County | — | — |
| Thomas Construction | Thomas Sinclair Jr Wedertz | — | (707) 350 0611 | GC, remodel, ADU | Vacaville · Solano County | — | — |
| Thomas Judt Builders INC | Thomas Matthew Judt | — | (510) 852 4560 | GC, remodel, ADU | Vallejo · Solano County | — | — |
| Thomas Martian | Thomas Martian | — | (707) 470 9286 | GC, remodel, ADU | Vacaville · Solano County | — | — |
| Thomas Ochs | Thomas Ochs | — | (707) 694 9846 | GC, remodel, ADU | Vallejo · Solano County | — | — |
| Thomas Straws Construction | Thomas Lee Straws | — | (707) 310 5402 | GC, remodel, ADU | Vacaville · Solano County | — | — |
| Thompson's Construction Services | Wayne Leroy Jr Thompson | — | (415) 624 9403 | Electricians | Suisun · Solano County | — | — |
| Three C Construction INC | Romeo Santos Espinosa | scleveland6@yahoo.com | (801) 458-5743 | GC, remodel, ADU | Vallejo · Solano County | — | — |
| Tiburcio Landscape INC | Guzman Carlos Tiburcio | — | (707) 805 0030 | Windows, patio, painters | Vallejo · Solano County | — | — |
| Tiger Tile And Stone INC | Moises Ortiz Gomez | — | (707) 980 1817 | Other | Suisun City · Solano County | — | — |
| Tim L Abbott Construction | Tim Lurri Abbott | — | (707) 290 9922 | GC, remodel, ADU | Vacaville · Solano County | — | — |
| Tim Rhones Installation Department | Tim Rhones Installation Department | — | (707) 666 5478 | Other | Fairfield · Solano County | — | — |
| Tim Senior Construction | Timothy John Senior | micah@micahrich.com | (707) 689 0369 | GC, remodel, ADU | Fairfield · Solano County | — | — |
| Timberwood Tree Service | Shawn Patrick Ream | — | (415) 931 1150 | Tree | Vacaville · Solano County | — | — |
| Tina's Cabinet Installation Company | Thomas Miles Fredericks | — | (530) 329 3671 | Other | Vallejo · Solano County | — | — |
| Tint Masters | Tint Masters | — | (925) 812 5350 | Other | Fairfield · Solano County | — | — |
| Titan Building Services INC | Ronald Dwayne Carrillo | — | (707) 656 2900 | GC, remodel, ADU | Fairfield · Solano County | — | — |
| Titan Demo | Ana Maria Acosta | — | (707) 398 5226 | GC, remodel, ADU | Benicia · Solano County | — | — |
| Tom W Gorman General Contractor | Tom W Gorman General Contractor | — | (415) 786 3714 | GC, remodel, ADU | Benicia · Solano County | — | — |
| Tom's Pools | Tom's Pools | — | (707) 514 6607 | Pool | Vacaville · Solano County | — | — |
| Tommy Le Landscaping | Phung Van Hoang | — | (707) 342 0022 | GC, remodel, ADU | Vallejo · Solano County | — | — |
| Tomson Cabinetry | Tomson Cabinetry | — | (707) 428 1647 | Other | Fairfield · Solano County | — | — |
| Toni Parkhurst INC DBA Budget Blinds Of Fairfield/vacaville | Toni Lynn Parkhurst | — | (707) 447 2494 | Other | Vacaville · Solano County | — | — |
| Tony B's Sewer And Drain Service | Leon Antonio Barajas | — | (707) 208 3775 | Other | Vacaville · Solano County | — | — |
| Tony Ray Martin | Tony Ray Martin | — | (707) 334 3770 | Other | Benicia · Solano County | — | — |
| Tony Rios | Tony Rios | — | (707) 297 0158 | Other | Suisun City · Solano County | — | — |
| Tony's Iron Works | Tony's Iron Works | tonysironworks@icloud.com | (707) 205 7437 | Other | Vacaville · Solano County | — | — |
| Tony's Landscape And Gardening Service | Canedo Antonio | — | (707) 678 1201 | Windows, patio, painters | Dixon · Solano County | — | — |
| Top - Plan Construction | Sung Hwan Kim | — | (510) 999 1959 | Electricians | Benicia · Solano County | — | — |
| Top Dog Electric & Construction,inc | Gabriel Lopez | — | (707) 400 3598 | Electricians | Fairfield · Solano County | — | — |
| Top Dog Maintenance & Renovations INC | Gabriel Lopez | — | (707) 400 3598 | GC, remodel, ADU | Fairfield · Solano County | — | — |
| Top Dog Plumbing And Rooter LLC | James Lamar Riggins | — | (707) 609 4069 | Other | Vacaville · Solano County | — | — |
| Top Finish Painting | Top Finish Painting | — | (415) 565 1743 | Windows, patio, painters | Fairfield · Solano County | — | — |
| Top Notch Construction And Consulting INC | Dustin Wade Rhodes | — | (707) 580 2864 | GC, remodel, ADU | Vacaville · Solano County | — | — |
| Top Notch Tree Service | Justin Taylor Warner | — | (707) 249 0736 | Other | Vacaville · Solano County | — | — |