| Hood Construction Co | Nicholas Gregory Hood | — | (760) 579 2763 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Hooshang Bastan | Hooshang Bastan | — | (510) 593 7171 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Hooven Builds | Hooven Builds | — | (510) 847 8495 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Hoover Construction Co | Bruce Lorin Hoover | — | (925) 337 0020 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| Horizon Doors And Service INC | Tellez Jorge Caceres | — | (415) 235 7467 | Other | Oakland · Alameda County | — | — |
| Horizon Electric Co | Mario Alberto Gonzalez | — | (915) 887 8140 | Electricians | Livermore · Alameda County | — | — |
| Horizon Industries | Horizon Industries | ben@horizon-industries.net | (925) 580 6757 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| Hosik Hwang | Hosik Hwang | — | (510) 427 7322 | GC, remodel, ADU | Union City · Alameda County | — | — |
| Hotter Water Heaters INC | Hakim Ullah Khan | hello@rfuenzalida.com | (650) 575 6663 | Other | Fremont · Alameda County | — | — |
| Houk Construction | Christopher David Houk | — | (510) 914 8350 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Houle Construction | Jonathan David Houle | — | (510) 455 0487 | GC, remodel, ADU | Newark · Alameda County | — | — |
| Houston Plumbing | Houston Plumbing | — | (510) 909 7498 | Other | Castro Valley · Alameda County | — | — |
| Howard Construction Co | Mortimer Raymond Howard | info@howardconstruction.com | (916) 444-6000 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Howard M Cameron Jr | Howard M Cameron Jr | — | (510) 672 8865 | GC, remodel, ADU | Piedmont · Alameda County | — | — |
| Howell Design And Build LLC | Kevin Howell | — | (831) 359 7991 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Howell Electric | Willie Albert Jr Howell | — | (510) 249 9031 | Electricians | Fremont · Alameda County | — | — |
| Hrb INC DBA Little Red Truck Painting | Samuel Enrique Jr Baca | — | (415) 385 1828 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Hrc Home Improvement INC | Cristobal Hernandez | — | (855) 827 8957 | Other roofers | Hayward · Alameda County | — | — |
| Hrt Mobile Welding | Hrt Mobile Welding | kyle@hrtmobilewelding.com | (925) 518 6694 | Other | Livermore · Alameda County | — | — |
| Hsq Tech INC | Trevor Louis Pettigrew | info@hsqtech.com | (415) 999 0096 | Electricians | Hayward · Alameda County | — | — |
| Ht Landscaping | Ht Landscaping | — | (925) 339 1346 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Hua Qing Construction Company | Lei Zhuo Jun | — | (415) 269 4253 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Huang's Builders INC | Zhong Wei Huang | — | (510) 852 4678 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Hubeymar Construction | Hubeymar Ronald Bartolon Reyes | — | (510) 292 1612 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Hue Painting | Manuel E Alonzo Zavala | — | (650) 464 5105 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Huerta Construction INC | Huerta Jimenez Hector | — | (510) 495 5531 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Hugo Lombera Construction | Lombera Hugo | lomberahugo@yahoo.com | (415) 527 7364 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Hugo's Key & Lock | Hugo's Key & Lock | — | (415) 994 3684 | Other | Oakland · Alameda County | — | — |
| Huiltron Landscaping | Huiltron Landscaping | — | (510) 754 8330 | Windows, patio, painters | Union City · Alameda County | — | — |
| Huiwen Zhu | Huiwen Zhu | — | (614) 558 0291 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Huixtepec Tile Company | Ortiz Genaro | — | (925) 212 3441 | Other | Livermore · Alameda County | — | — |
| Humphrey's Home Repair Services | Humphrey Wai Hom | — | (510) 709 9769 | GC, remodel, ADU | Union City · Alameda County | — | — |
| Hung Ming Chen DBA Usa Electric | Chen Hung Ming | — | (510) 585 8766 | Electricians | Fremont · Alameda County | — | — |
| Hung's Construction Co | Bruce Hung Nguyen | — | (510) 816 0718 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Hung's General Construction | Hung Temple | — | (415) 609 3510 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Hurtado Tree Service | Jose Pedro Hurtado Bedolla | — | (510) 783 5020 | Tree | Hayward · Alameda County | — | — |
| Hutchcraft INC | Robert O Hutchinson | — | (510) 520 6560 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| Huy Construction | Huy Dai Bui | — | (510) 846 2515 | Electricians | Alameda · Alameda County | — | — |
| Huy's Painting | Huy's Painting | — | (510) 589 0574 | Windows, patio, painters | Hayward · Alameda County | — | — |
| HVAC Oren Services LLC | Gil Geva | — | (800) 974 5349 | HVAC | Oakland · Alameda County | — | — |