| G M Yaya's Construction | Don Wesley Walker | — | (209) 298 4888 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| G N G Painting | G N G Painting | — | (209) 914 9859 | Windows, patio, painters | Lathrop · San Joaquin County | — | — |
| G P Mariani INC DBA Mariani Construction Company | Gary Peter Mariani | — | (209) 406 4040 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| G R B Plumbing | Leonard James Blank | — | (209) 333 7760 | Other | Lodi · San Joaquin County | — | — |
| G W S Construction | Gary William Shull | — | (209) 329 3119 | GC, remodel, ADU | Linden · San Joaquin County | — | — |
| G Z L Painting | G Z L Painting | — | (408) 903 7199 | Windows, patio, painters | Lathrop · San Joaquin County | — | — |
| G's Legacy Flooring Company LLC | Mendoza Genaro Camargo | — | (209) 271 4199 | Other | Stockton · San Joaquin County | — | — |
| G.g Plumbing | G.g Plumbing | — | (209) 518 7210 | Other | Stockton · San Joaquin County | — | — |
| G1 Plumbing Service LLC | Gonzalo Aguilar | — | (209) 765 8960 | Other | Tracy · San Joaquin County | — | — |
| G3 Power INC | Raul Gurrola | — | (209) 470 6983 | Electricians | Stockton · San Joaquin County | — | — |
| G4 Construction | Gregory James Georguson | — | (209) 327 0238 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| G4b Refigeration | G4b Refigeration | — | (209) 880 9545 | HVAC | Mountain House · San Joaquin County | — | — |
| G63 Excavating | G63 Excavating | — | (209) 321 0922 | Other | Tracy · San Joaquin County | — | — |
| Gabbert Construction INC | Carlton Earl Gabbert | — | (209) 833 5050 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Gabe Construction | Gabriel Galletta | — | (209) 430 6011 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Gabriel Anthony Sallah Jr | Gabriel Anthony Sallah Jr | — | (209) 598 1172 | Other | Stockton · San Joaquin County | — | — |
| Gabriel Reszka | Gabriel Reszka | — | (209) 278 7357 | Windows, patio, painters | Manteca · San Joaquin County | — | — |
| Gaines Construction INC | Richard Peter Gaines | — | (209) 484 6246 | GC, remodel, ADU | Lockeford · San Joaquin County | — | — |
| Gallagher De Signs | Gallagher De Signs | — | (209) 321 3748 | Other | Tracy · San Joaquin County | — | — |
| Gallant Builders | Gallant Builders | — | (209) 815 8381 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Galvan Landscape | Galvan Landscape | — | (408) 687 8290 | Windows, patio, painters | French Camp · San Joaquin County | — | — |
| Galvao & Sons INC | Maximino Viveiros Galvao | — | (209) 346 6283 | Windows, patio, painters | Tracy · San Joaquin County | — | — |
| Gama Plumbing INC | Munoz Cesar Gama | — | (209) 204 9914 | Other | Tracy · San Joaquin County | — | — |
| Gama Telecommunications | Gama Telecommunications | — | (209) 741 5128 | Electricians | Stockton · San Joaquin County | — | — |
| Garbros Builders LLC | Jacobo Israel Garcia | — | (209) 232 5281 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Garcia E Construction INC | Eugenio Estrada Garcia | — | (209) 609 3456 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Garcia Landscaping | Garcia Landscaping | — | (510) 209 0516 | Windows, patio, painters | Tracy · San Joaquin County | — | — |
| Garcia's Professional Heating & Air | Garcia's Professional Heating & Air | — | (209) 986 6323 | HVAC | Stockton · San Joaquin County | — | — |
| Garfias Floor Pros INC | Garfias Cristian Ponce | — | (510) 750 7100 | Other | Lathrop · San Joaquin County | — | — |
| Garfias Flooring INC | Garfias Cristian Ponce | — | (510) 750 7100 | Other | Lathrop · San Joaquin County | — | — |
| Garibaldi Construction Company | Gary Lawrence Garibaldi | — | (209) 271 1438 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Garibay Construction Company | Jorge Antonio Garibay | — | (209) 981 2071 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Gary Allen Painting | Gary Allen Painting | — | (209) 327 5055 | Windows, patio, painters | Woodbridge · San Joaquin County | — | — |
| Gary Holtberg Construction INC | Gary Steven Holtberg | — | (209) 969 3274 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Gary L Stone | Gary L Stone | — | (209) 482 2556 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Gary Stone INC DBA Stone Homes | Gary Lee Stone | — | (209) 482 2556 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Gary's Signs & Screen Printing | Gary Dean Markle | — | (209) 369 8592 | Other | Lodi · San Joaquin County | — | — |
| Gate - Or - Door INC | James Steven Bickle | — | (209) 751 4881 | Other | Ripon · San Joaquin County | — | — |
| Gatlin's Plumbing | Gatlin's Plumbing | — | (209) 401 5258 | Other | Stockton · San Joaquin County | — | — |
| Gauden Exterminating | Gauden Exterminating | gaudenext@gmail.com | (209) 599 3692 | GC, remodel, ADU | Ripon · San Joaquin County | — | — |