| Gilberto Padilla | Gilberto Padilla | — | (951) 507 8652 | Other | Jurupa Valley · Riverside County | — | — |
| Gilchriese Thomas L | Gilchriese Thomas L | — | (951) 735 7200 | Other | Corona · Riverside County | — | — |
| Giles Engineering | Giles Carlos | — | (951) 293 3503 | Other | Lake Elsinore · Riverside County | — | — |
| Gillilan Wellpumps And Plumbing | Gillilan Wellpumps And Plumbing | — | (951) 760 6430 | Windows, patio, painters | Aguanga · Riverside County | — | — |
| Gilmond's Construction | Daniel Joseph Gilmond | — | (760) 320 9256 | GC, remodel, ADU | Palm Springs · Riverside County | — | — |
| Gio's Custom Cabinets | Gio's Custom Cabinets | — | (909) 973 8497 | Other | Jurupa Valley · Riverside County | — | — |
| Gio's Tile & Stone | Gio's Tile & Stone | — | (760) 620 8688 | Other | Cathedral City · Riverside County | — | — |
| Gitano Painting | Gitano Painting | — | (949) 394 1962 | Windows, patio, painters | Lake Elsinore · Riverside County | — | — |
| Giuseppe Biundo INC DBA Gb Construction | Biundo Giuseppe | — | (619) 726 8975 | GC, remodel, ADU | Winchester · Riverside County | — | — |
| Giuseppe Cracchiolo INC DBA J C & Sons | Gerilynn Marie Cracchiolo | — | (951) 334 4437 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Giuseppe Romania DBA The Art Of Decorating | The Art Of Decorating | — | (760) 774 3989 | Windows, patio, painters | Rancho Mirage · Riverside County | — | — |
| Given Heating & Air | Given Heating & Air | — | (619) 431 9681 | HVAC | Hemet · Riverside County | — | — |
| Giza Tiles | Giza Tiles | — | (442) 226 6380 | Other | Temecula · Riverside County | — | — |
| Gl Heating And Air Conditioning | Guillermo Guadalupe Lemus Sanchez | — | (714) 234 5305 | HVAC | Moreno Valley · Riverside County | — | — |
| Gladiator Paving INC | Jorge Juventino Vazquez | — | (562) 709 7430 | Other | Riverside · Riverside County | — | — |
| Glariest Maintenance Services LLC | Luis Estuardo Hernandez | — | (562) 485 7692 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Glass & Door Maintenance Co | Robert Forrest Gudger | — | (951) 813 9999 | Windows, patio, painters | Menifee · Riverside County | — | — |
| Glass & Mirror Pros INC | Gerardo Barajas | info@glassmirrorpros.com | (760) 333 5101 | Windows, patio, painters | Desert Hot Springs · Riverside County | — | — |
| Glass Block Installations | Maryann Ahlgren | — | (760) 324 5640 | GC, remodel, ADU | Palm Desert · Riverside County | — | — |
| Glass Doctor Of Murrieta | Andrew Spencer Wesper | — | (951) 894 5710 | Windows, patio, painters | Murrieta · Riverside County | — | — |
| Glass Fabrication INC | Arteaga Joaquin | — | (951) 924 8953 | Windows, patio, painters | Murrieta · Riverside County | — | — |
| Glass Guru Of Temecula | Glass Guru Of Temecula | — | (951) 719 1000 | Windows, patio, painters | Temecula · Riverside County | — | — |
| Glass Railing Systems INC | Richard Allen Henton | — | (951) 415 6857 | Windows, patio, painters | Murrieta · Riverside County | — | — |
| Glasshouse Painting | Glasshouse Painting | — | (760) 569 8918 | Windows, patio, painters | Desert Hot Springs · Riverside County | — | — |
| Glazing Concepts INC | Timothy Eugene Lietaert | — | (951) 734 9654 | Windows, patio, painters | Corona · Riverside County | — | — |
| Glazzworks | Vasquez Jimenez Tomas | — | (760) 206 4222 | Windows, patio, painters | Palm Desert · Riverside County | — | — |
| Glen Avon Plumbing | Glen Avon Plumbing | — | (951) 522 5313 | Other | Riverside · Riverside County | — | — |
| Glen Rusche | Glen Rusche | — | (951) 623 4009 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| Glenford Construction | Michael Glenford Jones | — | (951) 334 0572 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Glenn Douglas Complin | Glenn Douglas Complin | — | (951) 776 0353 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Glenn Johnson Cooling & Heating INC | Richard Lee Sain | — | (760) 922 0863 | HVAC | Blythe · Riverside County | — | — |
| Glenn P Schumacher | Glenn P Schumacher | — | (951) 733 1577 | Other | Idyllwild · Riverside County | — | — |
| Glenn Strickland Painting | Glenn Strickland Painting | — | (760) 885 3231 | Windows, patio, painters | Palm Springs · Riverside County | — | — |
| Glenn's Renovations | Glenn's Renovations | — | (760) 954 0007 | GC, remodel, ADU | Palm Desert · Riverside County | — | — |
| Glenzer Electric | Ronald Helmuth Jr Glenzer | — | (949) 254 5622 | Electricians | Temecula · Riverside County | — | — |
| Glo-mart Electric | Martinez Joel | — | (832) 863 2590 | Electricians | Coachella · Riverside County | — | — |
| Global Legend Corporation | Wilbur Chang | — | (951) 902 0092 | GC, remodel, ADU | Lake Elsinore · Riverside County | — | — |
| Global Overhead Doors INC | Augusto Hernandez | — | (310) 678 8332 | Other | Riverside · Riverside County | — | — |
| Glow Masters Flooring INC | Brian Kieth Wilson | — | (951) 738 9249 | Other | Corona · Riverside County | — | — |
| Glr Construction | Gary Leon Renshaw | — | (909) 721 3349 | GC, remodel, ADU | Calimesa · Riverside County | — | — |