| Ford Plumbing | Ford Plumbing | — | (415) 571 0697 | Other | Pacifica · San Mateo County | — | — |
| Forood Design And Construction INC | Polonsky-forood Natalie | — | (650) 678 7844 | GC, remodel, ADU | Burlingame · San Mateo County | — | — |
| Forthaven Control | Forthaven Control | — | (650) 525-2205 | Pest, tile roofs | San Mateo · San Mateo County | — | — |
| Foundation Technologies INC | Matheson Bruce | — | (650) 704 3694 | Other | Woodside · San Mateo County | — | — |
| Four Seasons Painting Co | Marwan Fuad Ahwal | — | (650) 302 0626 | Windows, patio, painters | Millbrae · San Mateo County | — | — |
| Four Seasons Pool Services | Four Seasons Pool Services | — | (650) 343-5552 | Pool | San Mateo · San Mateo County | — | — |
| Four Square Electric Company | Noah Revell Folber | impallari@gmail.com | (650) 766 1303 | Electricians | Pacifica · San Mateo County | — | — |
| Fox Construction Services | Stephen Michael Fox | — | (650) 207 2467 | GC, remodel, ADU | San Mateo · San Mateo County | — | — |
| Fox Landscape | Fox Landscape | info@foxlandscape.com | (650) 366 5348 | Windows, patio, painters | Redwood City · San Mateo County | — | — |
| Fox Landscape & Irrigation INC | Brian Fletcher Henry | — | (650) 366 5348 | Windows, patio, painters | Redwood City · San Mateo County | — | — |
| Frame It Construction | Anthony Joseph Reid | — | (650) 271 4999 | GC, remodel, ADU | San Bruno · San Mateo County | — | — |
| Francis Dimayuga | Francis Dimayuga | — | (650) 219 5479 | GC, remodel, ADU | Daly City · San Mateo County | — | — |
| Francisco Chavez | Francisco Chavez | — | (650) 464 2218 | Windows, patio, painters | Redwood City · San Mateo County | — | — |
| Frank Costaglio Painting | Frank Costaglio Painting | — | (650) 348 1978 | GC, remodel, ADU | Hillsborough · San Mateo County | — | — |
| Frank S Addiego | Frank S Addiego | — | (650) 222 0411 | GC, remodel, ADU | San Carlos · San Mateo County | — | — |
| Frank Walley Construction | Timothy Francis Walley | — | (415) 640 3558 | GC, remodel, ADU | Pacifica · San Mateo County | — | — |
| Franmore Electric INC | Alfredo Bermudez Cruz | franmoreelectric@aol.com | (415) 378 6274 | Electricians | Pacifica · San Mateo County | — | — |
| Fratelli Builders Group PC | Giuseppe Lucchese | — | (650) 491 4298 | GC, remodel, ADU | San Bruno · San Mateo County | — | — |
| Fred Lustenberger General Contractor | Fred Lustenberger General Contractor | — | (707) 888 1264 | GC, remodel, ADU | Redwood City · San Mateo County | — | — |
| Fred Rosenberg Construction | Fredric Philip Rosenberg | — | (650) 722 1780 | GC, remodel, ADU | La Honda · San Mateo County | — | — |
| Fred Slightam | Fred Slightam | — | (650) 619 2698 | GC, remodel, ADU | Menlo Park · San Mateo County | — | — |
| Fred Thayer Carpets | Fred Thayer Carpets | fredthayer57@gmail.com | (650) 257 0848 | GC, remodel, ADU | Daly City · San Mateo County | — | — |
| Freemodel INC | Brent Travis Dodge | — | (415) 755 5367 | GC, remodel, ADU | Burlingame · San Mateo County | — | — |
| French Brothers Painting | French Brothers Painting | — | (415) 377 7383 | Windows, patio, painters | Pacifica · San Mateo County | — | — |
| French Touch Construction LLC | Matthieu Gouley | — | (650) 255 0741 | GC, remodel, ADU | Burlingame · San Mateo County | — | — |
| Fresh Start Home Construction | Santiago Alvarado | — | (415) 756 0183 | GC, remodel, ADU | Daly City · San Mateo County | — | — |
| Fresh Start Painting Co | Emmanuel Koutantos | fresh.start.painting716@gmail.com | (650) 222 5329 | Windows, patio, painters | Millbrae · San Mateo County | — | — |
| Freutel Roofing INC | Daniele Nicole Derenzi | contact@sansoxygen.com | (650) 355 3608 | Other roofers | Pacifica · San Mateo County | — | — |
| Friedland Painting INC | Michael John Friedland | — | (650) 333 8164 | Windows, patio, painters | Millbrae · San Mateo County | — | — |
| Friel Designs | Friel Designs | patrick@frieldesigns.com | (650) 759 1900 | GC, remodel, ADU | Burlingame · San Mateo County | — | — |
| Friis Plastering INC | Dale Gregory Friis | — | (650) 400 0123 | Other | Belmont · San Mateo County | — | — |
| Frontline Painting Services | Andrew Damien Heredia | — | (408) 981 6913 | GC, remodel, ADU | Foster City · San Mateo County | — | — |
| Fsjconstruction | Solis Juarez Feliciano | — | (650) 315 1390 | GC, remodel, ADU | Redwood City · San Mateo County | — | — |
| Fuad Ahwal | Fuad Ahwal | — | (650) 302 5285 | Windows, patio, painters | San Bruno · San Mateo County | — | — |
| Fuata Electric INC | David Joseph Fuata | — | (650) 513 1492 | Electricians | San Mateo · San Mateo County | — | — |
| Fudo Construction Incorporated | Mitsuo Nozu | — | (650) 350 1120 | Other | San Mateo · San Mateo County | — | — |
| Fuentes Construction | Jose Garcia Fuentes | — | (650) 814 9695 | GC, remodel, ADU | Redwood City · San Mateo County | — | — |
| Fuentes Painting Co | Fuentes-rodriguez Hector | — | (650) 281 6135 | GC, remodel, ADU | Redwood City · San Mateo County | — | — |
| Full Gardening Service INC | Steve Espinosa Fernandez | — | (650) 692 1030 | Windows, patio, painters | San Mateo · San Mateo County | — | — |
| Fullhouse Pro Construction INC | Sergei Chushkin | — | (916) 613 8407 | GC, remodel, ADU | San Bruno · San Mateo County | — | — |