| Four Dimensions Builders INC | Byron Roberto Figueroa-Martinez | — | (510) 830 8230 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Four Seasons Heating And Air Conditioning | Elis Talal Haddad | — | (209) 366 3222 | HVAC | Stockton · San Joaquin County | — | — |
| Fowlers General Engineering | Fowlers General Engineering | — | (209) 333 2143 | Other | Acampo · San Joaquin County | — | — |
| Fox Plumbing | Fox Plumbing | info@foxplumbing.com | (650) 630 2885 | Other | Manteca · San Joaquin County | — | — |
| Fr Development INC | Faisal Rawof | — | (510) 358 6148 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Franco Construction | Matthew David Hightower | — | (408) 416 1375 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Franco Engineering INC | Carlos David Franco | julio@francoengineering.com | (209) 831 0713 | Other | Tracy · San Joaquin County | — | — |
| Frank Rubino Construction | Frank Anthony Rubino | — | (209) 471 1996 | GC, remodel, ADU | Linden · San Joaquin County | — | — |
| Frank Russo Jr | Frank Russo Jr | — | (831) 601 7997 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Frank Schubert | Frank Schubert | — | (831) 224 2513 | Other | Tracy · San Joaquin County | — | — |
| Frank's Painting And Wallcovering | Frank's Painting And Wallcovering | — | (209) 679 2211 | Windows, patio, painters | Tracy · San Joaquin County | — | — |
| Frank's Quality Air INC | Nunez Francisco Coyt | — | (209) 513 0540 | HVAC | Stockton · San Joaquin County | — | — |
| Frankies Handyman Services | Frankie Joe Prater | — | (209) 910 7541 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Franklin Energy Demand Response | Richard Roger Barnard | — | (262) 284 3828 | HVAC | Manteca · San Joaquin County | — | — |
| Frazer Construction | Andrew Horan Frazer | — | (209) 200 2648 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Fred E Turner Co | Denise Gail Bloom | feturner1@sbcglobal.net | (650) 270 4328 | Other | Lodi · San Joaquin County | — | — |
| Freedom Day Construction INC | Gary Leon Wallace | — | (925) 895 2607 | GC, remodel, ADU | Ripon · San Joaquin County | — | — |
| Freedom Fire Protection INC | Cynthia Christina Velasco | — | (209) 599 5400 | Other | Ripon · San Joaquin County | — | — |
| Freeman Construction Company | Ricky E Freeman | — | (209) 323 5254 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Freeman Electric | Timothy Donald Nagy | — | (408) 515 3671 | Electricians | Stockton · San Joaquin County | — | — |
| Fresh Finish Paint INC | Bernardo Guerrero | — | (510) 314 6509 | Windows, patio, painters | Lathrop · San Joaquin County | — | — |
| Fresh Style Painting | Dimitrios Kostantinos Tantaros | — | (209) 482 3962 | Windows, patio, painters | Manteca · San Joaquin County | — | — |
| From The Field Enterprises | Thomas David Vander Weide | — | (209) 988 8464 | Other | Ripon · San Joaquin County | — | — |
| Fryer Door Installation Corp DBA Fryer Installation | Debra Ann Fryer | — | (209) 824 2897 | Other | Manteca · San Joaquin County | — | — |
| Fuel Oil Systems | Douglas Ghen Nakano | — | (925) 556 5424 | Electricians | Lathrop · San Joaquin County | — | — |
| Full Mechanical | Full Mechanical | — | (209) 740 3637 | HVAC | Manteca · San Joaquin County | — | — |
| Fuller Handyman Service | David Earl Fuller | fullerhandymanservice@gmail.com | (510) 657 7995 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Fusion Power Design LLC | James Henry Jenner | — | (209) 747 6679 | Electricians | Lodi · San Joaquin County | — | — |
| Fvr Construction | Victor Ramon Nuno | — | (209) 993 7689 | GC, remodel, ADU | Ripon · San Joaquin County | — | — |
| G & C Concrete INC | Juan Victor Fonseca | — | (916) 806 3929 | Other | Tracy · San Joaquin County | — | — |
| G & L Pools INC | Evelyn Garcia | — | (925) 413 4151 | Pool | Tracy · San Joaquin County | — | — |
| G 2 Metal Fab | Dennis Orlando Gutierrez | — | (925) 583 2693 | Other | Stockton · San Joaquin County | — | — |
| G 3 Group LLC DBA G 3 Construction | Martin Garcia Garcia | — | (510) 776 4030 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| G And H Fixtures INC | Azniv Hovaness Tatarian | — | (209) 836 2716 | Other | Tracy · San Joaquin County | — | — |
| G And L Brock Construction Company INC | Gary Allen Brock | — | (209) 931 3626 | Other | Stockton · San Joaquin County | — | — |
| G C Concrete | Gary Allen Christian | — | (916) 714 3669 | GC, remodel, ADU | Woodbridge · San Joaquin County | — | — |
| G C J INC | Virginia Ann Gowan | — | (209) 836 2482 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| G D's Tile And Pool Plastering INC | Gustavo Gama Dominguez | — | (209) 727 0659 | Pool | Lockeford · San Joaquin County | — | — |
| G G & G Cabinets | Jose Alfredo Gutierrez | — | (209) 649 1174 | Other | Stockton · San Joaquin County | — | — |
| G M Donaire Construction | Gerardo Manacap Donaire | — | (209) 430 2642 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |