| H L Roofing INC | Homero Gubel Lopez Flores | — | (951) 719 6843 | Other roofers | Homeland · Riverside County | — | — |
| H Leon Concrete | H Leon Concrete | — | (714) 457 1385 | Other | Moreno Valley · Riverside County | — | — |
| H M C Masonry | H M C Masonry | — | (951) 346 6650 | Other | Riverside · Riverside County | — | — |
| H M Cleanup Corporation | Antonio Melendrez | — | (951) 823 0753 | Other | Riverside · Riverside County | — | — |
| H M R & R Services INC | Gary Anthony Somma | — | (951) 244 5073 | HVAC | Canyon Lake · Riverside County | — | — |
| H M S Plumbing | H M S Plumbing | — | (951) 818 0246 | GC, remodel, ADU | Corona · Riverside County | — | — |
| H N G Construction INC | Modesto Garcia | — | (760) 218 9126 | GC, remodel, ADU | Cathedral City · Riverside County | — | — |
| H P Stairs | Humberto Torres Pablos | — | (714) 273 7048 | Other | Murrieta · Riverside County | — | — |
| H Q Construction | Hugo Fernando Quevedo | — | (626) 483 3807 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| H R P Plumbing & Heating | Erick Geovani Hernandez | — | (562) 824 5476 | HVAC | Riverside · Riverside County | — | — |
| H S Q Plumbing INC | Melchor Reyes Jr Huerta | — | (951) 688 8845 | Other | Riverside · Riverside County | — | — |
| H T Construction | Scott David Taylor | — | (951) 786 8879 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| H Trinity Builders INC | Mendoza Alvaro Huante | — | (562) 631 3983 | GC, remodel, ADU | San Jacinto · Riverside County | — | — |
| H Y Construction Co | Peter Suk Oh | — | (213) 645 8833 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| H Z Plumbing | H Z Plumbing | — | (951) 345 3642 | Other | Moreno Valley · Riverside County | — | — |
| H&d Millwork Installers INC | Garrett Dean Summers | — | (951) 235 1006 | Other | Norco · Riverside County | — | — |
| H&h Builders Incorporated | Allan William Heath | — | (619) 301 4183 | GC, remodel, ADU | Wildomar · Riverside County | — | — |
| H&h Landscape & Irrigation INC | Hernandez Hubaldo | — | (951) 219 6772 | Windows, patio, painters | Sun City · Riverside County | — | — |
| H&h Roofing | Gabriel Humberto Hernandez | — | (760) 712 2981 | Other roofers | Temecula · Riverside County | — | — |
| H&m Construction INC | Arambula Horacio Lopez | — | (951) 213 9892 | GC, remodel, ADU | San Jacinto · Riverside County | — | — |
| H&s Vision Wireless INC | Hugo Albert Cisneros | — | (760) 250 3609 | Electricians | Menifee · Riverside County | — | — |
| H&v General Construction | Hector Ivan Valdez Linares | — | (909) 544 6764 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| H20 Restoration INC | Rito Reveles Sr Sotelo | — | (909) 753 2101 | GC, remodel, ADU | Winchester · Riverside County | — | — |
| H2o Heating Pros INC | Brian Ambrose Prince | — | (888) 383 4203 | HVAC | Menifee · Riverside County | — | — |
| H2o Restoration Services INC | Gutierrez Gustavo | — | (619) 758 5864 | GC, remodel, ADU | Murrieta · Riverside County | — | — |
| H2o Services INC | Ronald Scott Kincaid | — | (760) 668 7067 | Other | Rancho Mirage · Riverside County | — | — |
| H7 Contracting & Engineering INC | Heath Jeffrey Carpenter | — | (951) 213 4604 | Other | Murrieta · Riverside County | — | — |
| Habitat For Humanity Inland Valley INC | James Thomas Buxton | — | (951) 296 3362 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Hai Hua Huang | Hai Hua Huang | — | (909) 913 0668 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Hailey's Blacktop Service | Joshua Howard Peterson | — | (951) 623 6733 | Other | Perris · Riverside County | — | — |
| Haitbrink Asphalt Paving INC | Justin Robert Lang | — | (951) 273 0111 | Other | Corona · Riverside County | — | — |
| Hakes Sash & Door INC | Daniel Paul Farnum | — | (951) 674 2414 | GC, remodel, ADU | Lake Elsinore · Riverside County | — | — |
| Hal Hays Construction INC | Hal Arthur Hays | — | (951) 788 0703 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Haley Construction | John Joseph Haley | — | (949) 292 1962 | GC, remodel, ADU | Lake Elsinore · Riverside County | — | — |
| Hall & Sons Construction | Jason Thomas Hall | americancrpntr@gmail.com | (816) 738-6003 | GC, remodel, ADU | Menifee · Riverside County | — | — |
| Hall Construction | James Andrew Hall | — | (760) 835 9857 | GC, remodel, ADU | La Quinta · Riverside County | — | — |
| Hall Electric | Gregory Kenneth Hall | — | (949) 466 0903 | Electricians | Palm Desert · Riverside County | — | — |
| Hallin And Herrera INC | David Ernest Herrera | — | (951) 245 8554 | Other | Lake Elsinore · Riverside County | — | — |
| Halo A / V | Halo A / V | — | (760) 625 3944 | Other | Coachella · Riverside County | — | — |
| Halo Construction INC | Brian David Espinoza | — | (714) 882 0497 | GC, remodel, ADU | Riverside · Riverside County | — | — |