| Hampton Tedder Electric Company | Matthew Charles Jr Tedder | sales@hamptontedder.com | (909) 628 1253 | Electricians | Montclair · San Bernardino County | — | — |
| Hampton Tedder Technical Services INC | Matthew Charles Sr Tedder | — | (909) 628 1256 | Electricians | Montclair · San Bernardino County | — | — |
| Han Tung | Han Tung | — | (626) 810 1819 | Other | Chino Hills · San Bernardino County | — | — |
| Hana Management | Hana Management | — | (626) 991 5555 | GC, remodel, ADU | Chino · San Bernardino County | — | — |
| Hand To Hand Contracting | Aaron Jason Neveu | — | (760) 819 2714 | GC, remodel, ADU | Twenty Nine Palms · San Bernardino County | — | — |
| Handle It Coatings INC | Francisco Viberos Vega | frankievega@handleitcoatings.com | (626) 250 8411 | Other | Ontario · San Bernardino County | — | — |
| Hands Construction Corporation | Rodolfo Antonio Javier Notario | — | (760) 978 1949 | GC, remodel, ADU | Hesperia · San Bernardino County | — | — |
| Hands Mechanical | Mario Rodriguez | — | (442) 414 6854 | HVAC | Hesperia · San Bernardino County | — | — |
| Handy Solt | Handy Solt | — | (626) 533 6152 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Handyman Services | John Jeffery Kerns | — | (909) 282 0371 | GC, remodel, ADU | Chino · San Bernardino County | — | — |
| Handysolt INC | Donald Hall Solt | — | (626) 533 6152 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Hank Dyer Electric | William Henry Dyer | — | (760) 964 7601 | Electricians | Barstow · San Bernardino County | — | — |
| Hans Schodlbarer DBA Outdoor Enterprises | Outdoor Enterprieses | — | (909) 374 3466 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Hansen Electric | Brian Arthur Hansen | — | (909) 991 5297 | Electricians | Big Bear City · San Bernardino County | — | — |
| Hanson Landscape | Hanson Landscape | — | (760) 881 1723 | Windows, patio, painters | Apple Valley · San Bernardino County | — | — |
| Hany Daniel Talya | Hany Daniel Talya | — | (909) 792 6004 | GC, remodel, ADU | Redlands · San Bernardino County | — | — |
| Hao Fan Company | Kuo Wang | — | (313) 349 9969 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Harber Companies INC | Shawn Patrick Newman | — | (909) 478 1957 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Harbor Electrical Services | Lopez Jessy | — | (310) 691 6966 | Electricians | San Bernardino · San Bernardino County | — | — |
| Harco Builders INC | Henrico Guillermo Vidales | — | (760) 680 8027 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |
| Hard Tech Synthetic Products | Eloy Maldonado | — | (909) 682 0012 | Other | Bloomington · San Bernardino County | — | — |
| Hard Wire Electrical LLC | Paul Anthony Padilla | — | (760) 267 0447 | Electricians | Barstow · San Bernardino County | — | — |
| Harden Fire Protection INC | John Wesley Harden | john@hardenfireprotection.com | (909) 935 5227 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Harding Construction | Anthony Joseph Harding | — | (909) 238 5090 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Harding Construction | Albert Harding Jr Butcher | — | (909) 294 1602 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Hardscape West INC | Richard Nickolas Jr Clement | — | (909) 732 3337 | Other | Alta Loma · San Bernardino County | — | — |
| Hardwood Concepts INC | Abad Ernesto Heredia Lopez | — | (909) 231 1122 | Other | Colton · San Bernardino County | — | — |
| Harley Williams Christ | Harley Williams Christ | — | (626) 643 9064 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Haro Flooring INC | Cesar Alejandro Haro-Pena | — | (909) 763 9837 | Other | Grand Terrace · San Bernardino County | — | — |
| Haro's Painting | Haro's Painting | — | (909) 585 5281 | Windows, patio, painters | Big Bear City · San Bernardino County | — | — |
| Harrigan's Toilet Partitions INC | Ryan Claybourne Canady | — | (909) 879 0400 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Harris Construction | David Randall Harris | — | (760) 427 9739 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| Harris Remodeling Services | Michael John Harris | — | (714) 401 6975 | GC, remodel, ADU | Big Bear City · San Bernardino County | — | — |
| Harris Talsky Construction | Harris Allen Talsky | — | (530) 386 1079 | GC, remodel, ADU | Joshua Tree · San Bernardino County | — | — |
| Harry A Maciel | Harry A Maciel | — | (760) 221 9340 | Windows, patio, painters | Apple Valley · San Bernardino County | — | — |
| Harry L Odom Construction | Harry Lovean Odom | — | (909) 553 2329 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Hartman And Hartman Elevator Services Incorporated | Alice Jean Hartman | — | (909) 939 8012 | Other | Alta Loma · San Bernardino County | — | — |
| Harvester Landscape & Concrete INC DBA Harvester Landscape | Eric Jon Escudero | — | (909) 725 3023 | Windows, patio, painters | Redlands · San Bernardino County | — | — |
| Harvey Gamble Jr DBA Gamble Construction Company | Harvey Charles Jr Gamble | — | (760) 900 0000 | GC, remodel, ADU | Pinon Hills · San Bernardino County | — | — |
| Hasson's Landscaping | Hasson's Landscaping | — | (714) 240 8175 | Windows, patio, painters | Ontario · San Bernardino County | — | — |