| Rill Construction | Alexander Rill Perez | — | (530) 333 7196 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Rios Mauro Tree Service | Mauro Lara Rios | — | (530) 295 3976 | Tree | Placerville · El Dorado County | — | — |
| River City Controls INC | Matthew Vincent Tooch | — | (916) 222 1608 | HVAC | El Dorado Hills · El Dorado County | — | — |
| River City Sealants | River City Sealants | — | (916) 496 6156 | Other | Cameron Park · El Dorado County | — | — |
| Rivera Concrete | Rivera Concrete | — | (916) 205 1627 | Other | Placerville · El Dorado County | — | — |
| Rjm Builders INC | Michael Anthony Peris | rjmbuilders18@gmail.com | (530) 409 7192 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Rmz General Construction | Miguel Angel Ramirez Camberos | — | (530) 545 3358 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Road - Tech Safety Services INC | Benjamin James Jeffrey | — | (530) 672 0222 | Other | Shingle Springs · El Dorado County | — | — |
| Rob Moreno Construction INC | Robert Arthur Jr Moreno | — | (530) 957 7393 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Robert Carey | Robert Carey | — | (530) 644 2690 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Robert D Hill | Robert D Hill | — | (530) 651 3482 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Robert Dominikus General Engineering A Partnership | Robert Kenneth Dominikus | — | (530) 409 1396 | Other | Pollock Pines · El Dorado County | — | — |
| Robert Dore Construction | Robert Paul Dore | — | (530) 416 1458 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Robert Findleton DBA Terre Construction | Findleton Robert | — | (530) 417 2395 | Other | Diamond Springs · El Dorado County | — | — |
| Robert G Harbeintner | Robert G Harbeintner | — | (916) 933 3861 | GC, remodel, ADU | Pilot Hill · El Dorado County | — | — |
| Robert Grigsby | Robert Grigsby | — | (530) 306 8655 | Windows, patio, painters | Camino · El Dorado County | — | — |
| Robert J Cervenka Construction | Robert Jim Cervenka | — | (650) 743 7542 | Electricians | Shingle Springs · El Dorado County | — | — |
| Robert Lambert General Contractor | Robert Lambert General Contractor | — | (916) 719 2969 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Robert M Mclaughlin | Robert M Mclaughlin | — | (925) 209 3689 | Windows, patio, painters | Shingle Springs · El Dorado County | — | — |
| Robert Mc Bride Construction | Robert Michael Mc Bride | — | (530) 957 0525 | GC, remodel, ADU | Georgetown · El Dorado County | — | — |
| Robert Pecina | Robert Pecina | mail@robertpecina.com | (530) 551 7663 | Other roofers | South Lake Tahoe · El Dorado County | — | — |
| Roberts Fine Finish Painting | Roberts Fine Finish Painting | — | (530) 748 9396 | Windows, patio, painters | Placerville · El Dorado County | — | — |
| Roberts Painting | Roberts Painting | — | (530) 409 1229 | Windows, patio, painters | Lotus · El Dorado County | — | — |
| Robertson's Backflow | Robertson's Backflow | — | (530) 306 1056 | Other | Pollock Pines · El Dorado County | — | — |
| Robin J Humphrey | Robin J Humphrey | — | (916) 470 8501 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Robinson Construction | James Michael Robinson | bill@robinson-construction.com | (805) 258-1646 | GC, remodel, ADU | So Lake Tahoe · El Dorado County | — | — |
| Rock Creek Construction | Mitchell Ray Mc Efee | — | (530) 957 1996 | GC, remodel, ADU | Greenwood · El Dorado County | — | — |
| Rockney Ranch Construction | Merton Gregory Rockney | — | (530) 919 0022 | GC, remodel, ADU | Camino · El Dorado County | — | — |
| Rod Hemman Painting Services | Rodney James Hemman | — | (530) 941 5383 | Windows, patio, painters | Cameron Park · El Dorado County | — | — |
| Rod's General Building Contracting | Aram Rod Jorjorian | — | (916) 933 1884 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Roebbelen Construction Management Services INC | Robert James Kjome | — | (916) 939 4000 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Roebbelen Contracting INC | Robert Avery Mclean | general@roebbelen.com | (916) 939 4000 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Roman Brenich | Roman Brenich | — | (916) 458 2060 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Roman Cheglov | Roman Cheglov | — | (916) 599 3379 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| Romani Construction INC | Anthony John| Romani Tony Romani | jim@romaniconstruction.com | (530) 558 0307 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Ron Fuller Construction INC | Ronald Colton Fuller | — | (530) 544 1625 | Other | South Lake Tahoe · El Dorado County | — | — |
| Ron Johnson Iii General Construction | Ronald Daie Iii Johnson | — | (916) 612 0654 | GC, remodel, ADU | Garden Valley · El Dorado County | — | — |
| Ron Myers Construction | Ronald Fredrick Jr Myers | — | (530) 363 0033 | GC, remodel, ADU | Cameron Park · El Dorado County | — | — |
| Ronald D Bunce | Ronald D Bunce | — | (916) 500 9226 | Other | El Dorado Hills · El Dorado County | — | — |
| Ronald Parietti | Ronald Parietti | — | (916) 933 7226 | GC, remodel, ADU | Pilot Hill · El Dorado County | — | — |