| Fgs Concrete Services | Alvarez Cosme Soto | — | (209) 427 6733 | Other | Modesto · Stanislaus County | — | — |
| Fidelis Construction | Edward Joseph Plata | — | (209) 683 8203 | Electricians | Modesto · Stanislaus County | — | — |
| Figueroa Construction | Keith Robert Figueroa | — | (209) 524 5671 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Figueroa Pool Service INC | Arthur Joseph Figueroa | — | (209) 505 8523 | Pool | Riverbank · Stanislaus County | — | — |
| Figueroa's Concrete | Figueroa's Concrete | — | (209) 527 7105 | Other | Modesto · Stanislaus County | — | — |
| Filbert Plumbing And Drains | Filbert Plumbing And Drains | — | (209) 453 7679 | Other | Modesto · Stanislaus County | — | — |
| Filippone Construction Company | Michael Benedetto Filippone | filipponeconstruction@yahoo.com | (408) 229 3494 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Fineline Striping | David Clarence Lang | — | (209) 896 7657 | Other | Modesto · Stanislaus County | — | — |
| Finish Carpentry | Roberto Renteria | — | (209) 872 6497 | Other | Modesto · Stanislaus County | — | — |
| Finish Carpentry Specialist | Finish Carpentry Specialist | — | (209) 499 5047 | Other | Modesto · Stanislaus County | — | — |
| Finishing Touches Paint Company | Gerald Miles Ford | — | (209) 502 0417 | Windows, patio, painters | Denair · Stanislaus County | — | — |
| Finneman Contracting INC | Terry Joseph Finneman | — | (209) 874 2984 | GC, remodel, ADU | Waterford · Stanislaus County | — | — |
| Fire & Ice Pool & Spa | Jorge Luis Herrera | — | (209) 605 2686 | GC, remodel, ADU | Salida · Stanislaus County | — | — |
| Fire Suppression Technology's INC | William James Jr Hopper | — | (209) 874 1355 | Other | Waterford · Stanislaus County | — | — |
| First Call Heating & Air Conditioning INC | Alberto Hernandez | — | (925) 237 0800 | HVAC | Patterson · Stanislaus County | — | — |
| Five Star Window Screens | Five Star Window Screens | — | (209) 450 2756 | Other | Modesto · Stanislaus County | — | — |
| Fletcher Landscape Maintenance | Fletcher Landscape Maintenance | — | (209) 634 9486 | Windows, patio, painters | Ceres · Stanislaus County | — | — |
| Fletes & Son Concrete Services | Rodrigo Alejandro Fletes | — | (209) 303 8153 | Other | Patterson · Stanislaus County | — | — |
| Floodjay Pre-fab Installations | Matt Benjamin Robertson | — | (209) 232 5175 | Other | Modesto · Stanislaus County | — | — |
| Floor-es Remodeling | Floor-es Remodeling | — | (209) 247 6910 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Flooring 9 Installation INC | John Leroy Pritchard | — | (209) 412 6100 | Other | Modesto · Stanislaus County | — | — |
| Floors By Nate Mote | Floors By Nate Mote | — | (209) 581 6764 | Other | Riverbank · Stanislaus County | — | — |
| Floors Plus INC | Brian Charles Wimberley | — | (209) 577 5642 | Other | Modesto · Stanislaus County | — | — |
| Florentino Plumbing Services | Florentino Jaime | — | (408) 417 3036 | Other | Salida · Stanislaus County | — | — |
| Flores Construction | Timothy Christopher Flores | — | (408) 377 9928 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Flores Construction | Joseluis A Flores | — | (510) 229 6654 | Electricians | Modesto · Stanislaus County | — | — |
| Flores Excavation And Demolition INC | Brian Joseph Flores | estimating@floresexcavationdemolition.com | (209) 322-8610 | Other | Oakdale · Stanislaus County | — | — |
| Flying Turtle Cast Concrete | Matthew Joseph Rogers | — | (209) 530 1611 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Flyway Electrical & Construction | Nathan Raja Ram | — | (650) 676 0736 | Electricians | Turlock · Stanislaus County | — | — |
| Fmj Engineering | Kenneth David Owen | — | (209) 702 8942 | Other | Hughson · Stanislaus County | — | — |
| Foiada Land Leveling | Foiada Land Leveling | — | (209) 667 6143 | Other | Ceres · Stanislaus County | — | — |
| Force Building Services | Phillip John Miller | — | (209) 620 4160 | Other | Turlock · Stanislaus County | — | — |
| Form & Function Landscapes LLC | Luis Alberto Macias Esparza | — | (510) 362 9299 | Windows, patio, painters | Patterson · Stanislaus County | — | — |
| Forza Electric Heat & Air | Sireno Salvatore | — | (209) 735 9362 | HVAC | Modesto · Stanislaus County | — | — |
| Four Points Painting And Design | Four Points Painting And Design | — | (925) 470 0556 | Windows, patio, painters | Patterson · Stanislaus County | — | — |
| Fowler Brothers Construction INC | Charles Richard Jr Fowler | — | (209) 409 4951 | GC, remodel, ADU | Waterford · Stanislaus County | — | — |
| Fowzer Electric | Donald Alan Fowzer | — | (209) 595 1009 | Electricians | Modesto · Stanislaus County | — | — |
| Fox Electric | Toby Michael Fox | — | (650) 389 4184 | Electricians | Oakdale · Stanislaus County | — | — |
| Fqc INC | William Carl Jr Mc Clure | — | (209) 652 0560 | GC, remodel, ADU | Denair · Stanislaus County | — | — |
| Frameco Builder | Frameco Builder | — | (510) 860 6590 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |