| Habitat For Humanity Merced/stanislaus Counties | Roger Lincoln Powell | — | (209) 575 4585 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Hackney Custom Construction | Michael Douglas Hackney | — | (209) 541 4266 | GC, remodel, ADU | Riverbank · Stanislaus County | — | — |
| Halcon Drywall | Halcon Drywall | — | (209) 303 9272 | Other | Ceres · Stanislaus County | — | — |
| Haley Underground INC | Richard Lee Haley | — | (209) 537 6485 | Other | Waterford · Stanislaus County | — | — |
| Halley Air Conditioning & Heating | Halley Air Conditioning & Heating | — | (209) 543 8683 | HVAC | Modesto · Stanislaus County | — | — |
| Hamilton And Dillon Electric INC | John Edward Dillon | — | (209) 529 6292 | Electricians | Modesto · Stanislaus County | — | — |
| Hamilton Plumbing INC | Steven Douglas Hamilton | eric@hamilton-plumbing.com | (209) 595 7253 | Other | Modesto · Stanislaus County | — | — |
| Hammer Hill Handyman LLC | Jose Enrique Jimenez Santillan | — | (209) 216 7625 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Hampton's Backflow Services | Paul Leroy Hampton | — | (209) 470 7823 | Other | Modesto · Stanislaus County | — | — |
| Handy Bay Plumbing | Victor Manuel Que Tass | — | (650) 475 6543 | Other | Patterson · Stanislaus County | — | — |
| Hansen Builders LLC | Adam Shaw Hansen | info@hansenbuilders.com | (669) 842 1264 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Happy Pools | Happy Pools | — | (209) 718 9846 | Pool | Modesto · Stanislaus County | — | — |
| Hardens Pump Service | Bruce Vincent Harden | — | (209) 918 7274 | Other | Oakdale · Stanislaus County | — | — |
| Hardwood Floors Of Modesto INC | Matthew Barney | — | (209) 492 9168 | Other | Modesto · Stanislaus County | — | — |
| Hardworking Landscape Services | Vivanco Penaloza Bernardo | — | (209) 657 8155 | Windows, patio, painters | Riverbank · Stanislaus County | — | — |
| Harlan's Construction | Kenneth Laurel Jr Harlan | — | (209) 874 1141 | GC, remodel, ADU | Waterford · Stanislaus County | — | — |
| Haro Electric | Haro Esteban | — | (949) 308 3826 | Electricians | Riverbank · Stanislaus County | — | — |
| Harold Vander Veen Construction | Harold Roy Vander Veen | — | (209) 602 0512 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Harry S Bhatti | Harry S Bhatti | — | (209) 484 4641 | GC, remodel, ADU | Ceres · Stanislaus County | — | — |
| Hart Construction Company | Ashley John Hart | — | (209) 495 7430 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Hartt's Pool Plastering INC | Randal Dean Hartt | — | (209) 668 2550 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Harvey's Drapery Installations | Harvey's Drapery Installations | — | (209) 524 0948 | Other | Modesto · Stanislaus County | — | — |
| Harvey's Landscaping | Harvey's Landscaping | — | (209) 603 9921 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Haskell And Haskell Engineering And Construction Services INC | Shavon Delores Haskell | — | (209) 881 3500 | GC, remodel, ADU | Knights Ferry · Stanislaus County | — | — |
| Hauser Heating And Air | Stephen Cole Stubbings | — | (209) 483 3266 | HVAC | Modesto · Stanislaus County | — | — |
| Haven Outdoors | Haven Outdoors | — | (209) 860 2729 | Windows, patio, painters | Ceres · Stanislaus County | — | — |
| Hawk & Associates Painting | James Christopher Hawk | — | (650) 863 4295 | Windows, patio, painters | Patterson · Stanislaus County | — | — |
| Hays Electric | Kelly Gene Hays | — | (209) 324 6974 | Electricians | Modesto · Stanislaus County | — | — |
| Hba Construction INC | Gonzalez Abelino Alegria | — | (209) 589 5904 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Hbm Welding Services | Hernandez Bautista Mauricio | — | (209) 808 8376 | Other | Salida · Stanislaus County | — | — |
| Healthy Air | Healthy Air | support@healthyair.com | (209) 809 7510 | HVAC | Ceres · Stanislaus County | — | — |
| Heath Parks Build INC | Heath Douglas Parks | — | (209) 605 8493 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Hector Heating & Air | Hector Heating & Air | — | (209) 247 7014 | HVAC | Riverbank · Stanislaus County | — | — |
| Heddens Heat And Air | Heddens Heat And Air | — | (209) 505 3356 | HVAC | Waterford · Stanislaus County | — | — |
| Hedge Fire Protection | Hedge Fire Protection | — | (209) 890 5126 | Other | Oakdale · Stanislaus County | — | — |
| Heeler Roofing | Joaquin Romo Cristian | — | (209) 894 5953 | Other roofers | Patterson · Stanislaus County | — | — |
| Hendrix Landscape Services | Dylan Cole Hendrix | — | (925) 495 3192 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Hennings Bros Drilling Co INC | Sean Stephen Roddy | — | (209) 545 1185 | Other | Modesto · Stanislaus County | — | — |
| Henry Dean Sancedo | Henry Dean Sancedo | — | (209) 484 6536 | Other | Salida · Stanislaus County | — | — |
| Hensel And Castillo Fencing INC | Guadalupe Castillo | — | (209) 614 1604 | Other | Modesto · Stanislaus County | — | — |