| High Desert Underground INC | Cass Ian Sandwick | — | (760) 247 8999 | Other | Apple Valley · San Bernardino County | — | — |
| High Desert Window & Glass | Steven Anthony Sturdevant | — | (760) 947 5254 | Windows, patio, painters | Hesperia · San Bernardino County | — | — |
| High End Renovation San Bernardino | High End Renovation San Bernardino | — | (909) 881-1611 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| High Fidelity Cabinets | High Fidelity Cabinets | — | (951) 543 6376 | Other | Crestline · San Bernardino County | — | — |
| High Grounds General Contractor | Archila Denis Castellanos | — | (909) 677 5208 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| High Integrity Construction | Elton Masao Ishikawa | — | (909) 418 4046 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| High Mountain Construction INC | Carlos Genaro Madrigal | — | (909) 205 1669 | GC, remodel, ADU | Big Bear Lake · San Bernardino County | — | — |
| High Performance Plumbing | High Performance Plumbing | — | (951) 712 6557 | Other | Chino · San Bernardino County | — | — |
| High Point Concrete Construction | Johnathan Michael Stewart | — | (562) 441 1703 | Other | Victorville · San Bernardino County | — | — |
| High Point Concrete Construction INC | Johnathan Michael Stewart | — | (562) 441 1703 | Other | Victorville · San Bernardino County | — | — |
| High Profile Synthetics | Henry Michael Robles | — | (626) 660 8996 | Other | Ontario · San Bernardino County | — | — |
| High Q Construction And Restoration | Peter William Litvin | — | (760) 617 4750 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| High Quality Group | Santana Rafael | — | (760) 404 9123 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| High Ridge Construction INC | Olazabal Gerardo | — | (626) 610 6241 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| High Speed Rooter And Plumbing INC | Erick Wilfredo Granados | — | (213) 949 4202 | HVAC | Ontario · San Bernardino County | — | — |
| High Standards Concrete INC | Joseph Robert Jr Lawing | highstandardsconcrete@gmail.com | (951) 775 5664 | Other | Hesperia · San Bernardino County | — | — |
| High Tech Security Services INC | Michael Laird Allagas | — | (909) 885 2101 | Electricians | San Bernardino · San Bernardino County | — | — |
| Highball Signal INC | Miguel Angel Jr Mejia | — | (310) 961 1122 | Electricians | Rancho Cucamonga · San Bernardino County | — | — |
| Highland | Highland | — | (559) 355-8760 | Restoration | San Bernardino · San Bernardino County | — | — |
| Highland Cabinets And Doors INC | Robert Hoogendyk | — | (909) 585 6462 | GC, remodel, ADU | Big Bear City · San Bernardino County | — | — |
| Highland General Contractor | Highland General Contractor | — | (909) 834 2361 | GC, remodel, ADU | Mentone · San Bernardino County | — | — |
| Highland Heating And Air INC | Johnathan Matthew Beech | — | (909) 890 6954 | HVAC | Highland · San Bernardino County | — | — |
| Highland Homes And Construction Services INC | Kevin Patrick Donoho | — | (909) 831 1519 | GC, remodel, ADU | Big Bear Lake · San Bernardino County | — | — |
| Highland Machinery Systems INC | Obregon Enrique | — | (760) 954 7156 | Other | Highland · San Bernardino County | — | — |
| Highland Ornamental Metal | Christopher Lopez | — | (909) 355 8600 | Other | Fontana · San Bernardino County | — | — |
| Hightech Floor Covering INC | Cruz Efrain Lopez | — | (909) 623 0330 | Other | Upland · San Bernardino County | — | — |
| Hillman Home Remodeling | Hillman Home Remodeling | — | (909) 738 9787 | GC, remodel, ADU | Hesperia · San Bernardino County | — | — |
| Hilltop Co | Montasser-kouhsari Reza | — | (979) 933 7996 | GC, remodel, ADU | Running Springs · San Bernardino County | — | — |
| Hillty Electric | Toby Michael Hill | — | (951) 577 3002 | Electricians | Rancho Cucamonga · San Bernardino County | — | — |
| Hillwood Construction Services Of California L P | Ralph Weller Iii Rucker | — | (909) 382 0033 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| Hilton Plastering | Hilton Plastering | — | (626) 975 3243 | Other | Chino Hills · San Bernardino County | — | — |
| Hiner's Trenching | Hiner's Trenching | — | (909) 941 0704 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Hipolito Javier Ortiz | Hipolito Javier Ortiz | — | (562) 577 2462 | GC, remodel, ADU | Rialto · San Bernardino County | — | — |
| Hiroshi Suruki | Hiroshi Suruki | — | (909) 987 3920 | Windows, patio, painters | Upland · San Bernardino County | — | — |
| Historic Building Services INC | Edward John Kelsey | — | (213) 596 3232 | GC, remodel, ADU | Montclair · San Bernardino County | — | — |
| Hitt Construction Co INC | Christopher Jack Hitt | — | (760) 247 7474 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| Hitt Plumbing INC | Chad Christopher Hitt | nservice@hittplumbing.com | (760) 247 7474 | Other | Apple Valley · San Bernardino County | — | — |
| Hiyawill Construction INC | Isaac Geormar Armas Vieira | — | (562) 203 9518 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| Hj Constructors | Hani M Nasr | — | (909) 371 3715 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| Hk Construction | Hanna Ibrahim Kheir | — | (909) 908 5657 | GC, remodel, ADU | Redlands · San Bernardino County | — | — |