| J Rodriguez Painting | J Rodriguez Painting | %20jrzpaints@gmail.com | (669) 240 9041 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| J Romero Bros Construction INC DBA J Romero Bros Concrete Constru | Joel Efren Romero | — | (408) 289 8600 | Other | San Jose · Santa Clara County | — | — |
| J Ryan Design And Build | J Ryan Design And Build | — | (408) 316 4404 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J S C Construction And General Builders INC | Richard Charles Johnson | — | (408) 221 1005 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J S Miller Construction INC | Jason Shauwei Miller | — | (408) 506 7032 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J S Precision Electric INC | Jeffrey Mark Savino | jeff@jsprecisionelectric.com | (408) 655 2650 | Electricians | San Jose · Santa Clara County | — | — |
| J Saenz Roofing INC | Jesse Vargas Saenz | jsaenzroofing@comcast.net | (408) 396 6875 | Other roofers | San Jose · Santa Clara County | — | — |
| J Soto Construction INC | Jorge Luis Soto Sierra | — | (650) 518 2512 | GC, remodel, ADU | East Palo Alto · Santa Clara County | — | — |
| J T Electric INC | Dirk Johannes Swanepoel | — | (408) 426 1867 | Electricians | Gilroy · Santa Clara County | — | — |
| J T Masters Construction INC | Joseph Thomas Masters | joe@jtmastersconstruction.com | (408) 370 7256 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| J T Plumbing | Johannes Theodore Jr Vanderloo | — | (408) 363 0900 | Other | San Jose · Santa Clara County | — | — |
| J Tamone Construction | Joseph Michael Tamone | — | (408) 984 8872 | GC, remodel, ADU | Gilroy · Santa Clara County | — | — |
| J Tolentino Roofing Company | Julian Zamudio Tolentino | — | (408) 674 2325 | Other roofers | San Jose · Santa Clara County | — | — |
| J V Cons INC | Jaime Morfin Valle | — | (408) 497 1747 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J V Construction | Huy Quang Vu | — | (408) 835 5529 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J V Heating & Cooling | J V Heating & Cooling | — | (650) 549 8699 | HVAC | East Palo Alto · Santa Clara County | — | — |
| J W Construction | Sai Ming Fung | — | (408) 219 1906 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J W H Asbestos Removal Services | John Wesley Howell | john@jwhars.com | (408) 374 1123 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| J Wong Electric | Jacky Chingtat Wong | — | (408) 838 3938 | Electricians | Milpitas · Santa Clara County | — | — |
| J Y's Tile And Stone Tile Restoration | Jason Lawrence Young | — | (408) 594 0277 | Restoration | San Jose · Santa Clara County | — | — |
| J Z Construction | Joseph John Zamlich | — | (408) 307 6640 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J Z Flooring | Hugo Pablo Sanchez Juarez | — | (408) 310 6052 | Other | San Jose · Santa Clara County | — | — |
| J&a Home Builders | Raman Najjarian | — | (408) 334 4312 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J&l Construction Builders INC | Gustavo Abisay Molina Ruiz | — | (408) 600 6262 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J&l Sound & Video Security Systems INC | Ly Dung | — | (669) 235 1200 | Electricians | Milpitas · Santa Clara County | — | — |
| J's Custom Glass & Showers | J's Custom Glass & Showers | — | (408) 569 9813 | Windows, patio, painters | Morgan Hill · Santa Clara County | — | — |
| J.c Glazing | J.c Glazing | — | (650) 906 6411 | Windows, patio, painters | East Palo Alto · Santa Clara County | — | — |
| J.l.m. | Joseph Leal Mendonsa | — | (408) 422 2999 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J.r. Pitchford Construction INC | James Randel Pitchford | — | (831) 524 8863 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| J2 Landscaping INC | Juan Manuel Munoz | — | (408) 835 6978 | Windows, patio, painters | San Martin · Santa Clara County | — | — |
| Ja Fencing | Ja Fencing | — | (408) 823 3308 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Jachin Construction INC | Wai-Ming Cheung | — | (408) 705 6650 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| Jack H Craig Construction Co | Florence Craig | — | (408) 293 2158 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jack K Katashima Construction | Jack Kaoru Katashima | — | (408) 607 6981 | GC, remodel, ADU | Milpitas · Santa Clara County | — | — |
| Jack Myers Construction INC | Jack Melvin Ii Myers | — | (408) 761 1185 | GC, remodel, ADU | Saratoga · Santa Clara County | — | — |
| Jack T Chen | Jack T Chen | — | (408) 824 8995 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jack Whelan Roofing | John Matthew Whelan | — | (408) 848 0820 | Other roofers | San Martin · Santa Clara County | — | — |
| Jack's Overhead Doors And Insulation INC | Rodney Darwin Spence | — | (408) 842 0295 | Other | Gilroy · Santa Clara County | — | — |
| Jackie Huang | Jackie Huang | hello@jackiehuang.com | (408) 406 0063 | GC, remodel, ADU | Milpitas · Santa Clara County | — | — |
| Jackson Earl Trumbly DBA Jackson Trumbly Glass | Jackson Trumbly Glass | — | (408) 261 9755 | Windows, patio, painters | Santa Clara · Santa Clara County | — | — |