| R D Mc Intyre Construction | Robert Dale Jr Mc Intyre | — | (530) 545 0808 | GC, remodel, ADU | So Lake Tahoe · El Dorado County | — | — |
| R G H Construction | Robert Glen Hembree | — | (530) 318 2363 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| R H Custom Builder | R H Custom Builder | — | (408) 422 2341 | GC, remodel, ADU | Pollock Pines · El Dorado County | — | — |
| R L Copeman Construction | Randy L Copeman | — | (530) 919 7662 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| R L H Painting | R L H Painting | — | (916) 870 9051 | Windows, patio, painters | El Dorado · El Dorado County | — | — |
| R R Builder | R R Builder | — | (530) 663 8347 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| R S Masonry | R S Masonry | — | (530) 318 1344 | Other | South Lake Tahoe · El Dorado County | — | — |
| R S Roberts General Contractor | R S Roberts General Contractor | — | (916) 417 0691 | Other | Shingle Springs · El Dorado County | — | — |
| R Santerelli HVAC | R Santerelli HVAC | — | (916) 826 5982 | HVAC | Shingle Springs · El Dorado County | — | — |
| R T B Construction | Richard Alan Van Horn | — | (559) 906 4956 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| R T Construction | Ryan Jorge Turney | — | (707) 489 1075 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| R W E Weatherproofing | R W E Weatherproofing | — | (916) 247 9342 | Other roofers | El Dorado Hills · El Dorado County | — | — |
| R Wigart Construction | Randall Eric Wigart | — | (530) 318 1243 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| R&s Construction | Jose Edmundo Rojas Sanchez | — | (530) 318 5295 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Ramos Roofing | Juan Gerardo Ramos Torres | — | (530) 648 8192 | Other roofers | Placerville · El Dorado County | — | — |
| Ramsey Built Construction | Jason Scott Ramsey | — | (530) 417 7623 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Ramsey Electric | Scott M Ramsey | office@ramseyelectric.com | (530) 206 6078 | Electricians | Placerville · El Dorado County | — | — |
| Randy Ortez Construction | Randolph Gregory Ortez | — | (530) 306 6546 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Ras Construction & Remodeling INC | Aleksandr Iosifovich Rabushko | — | (916) 300 6375 | GC, remodel, ADU | Rescue · El Dorado County | — | — |
| Rastelli Tile Works | Rastelli Tile Works | — | (530) 721 5315 | Other | South Lake Tahoe · El Dorado County | — | — |
| Rave On Builders | Rave On Builders | — | (530) 318 2860 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Raylee Lighting & Electric | Raymond George Sr Alvarado | — | (916) 826 4681 | Electricians | Placerville · El Dorado County | — | — |
| Rc Group Medical Interiors DBA Cabinets | John Frank Rucker | — | (530) 306 2144 | Other | Shingle Springs · El Dorado County | — | — |
| Rch Electric INC | Robert Christopher Hock | — | (530) 350 0308 | Electricians | Somerset · El Dorado County | — | — |
| Rcp Construction INC | Richard Daniel Poipao | info@rcpconstruction.com | (916) 358 9530 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Rcp Construction LLC | Richard Daniel Poipao | info@rcpconstruction.com | (916) 358 9530 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Rd Enterprises LLC | William Reed Diener | — | (707) 530 1093 | Other | El Dorado Hills · El Dorado County | — | — |
| Rebo Construction | James William Rebolcaba | contact@rebo-construction.com | (530) 306 1938 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Recreational Construction Associates INC | Robert Charles Ash | — | (408) 839 1732 | Other | Placerville · El Dorado County | — | — |
| Red Rock Industries | Red Rock Industries | — | (530) 409 8448 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| Reddin Construction | William Donald Reddin | — | (530) 295 7684 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| Redding Network | Redding Network | — | (530) 440-2469 | Alarm and generators | Redding · El Dorado County | — | — |
| Redline Air Systems | Redline Air Systems | — | (916) 947 7818 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Redline Electric | Antonio Polito Rodriguez | impallari@gmail.com | (530) 663 3174 | Electricians | Diamond Springs · El Dorado County | — | — |
| Reece's Construction | Reece Joseph Lucas | — | (530) 417 4071 | GC, remodel, ADU | Garden Valley · El Dorado County | — | — |
| Reeds Excavating | Reeds Excavating | — | (530) 305 3757 | Other | Placerville · El Dorado County | — | — |
| Reflections In Glass | Reflections In Glass | — | (530) 677 5188 | Windows, patio, painters | Shingle Springs · El Dorado County | — | — |
| Regal Roofing | Regal Roofing | — | (760) 903-5873 | Other roofers | Carlsbad · El Dorado County | — | — |
| Reliant Construction INC | Aaron-Michael David Grgich | — | (916) 844 5018 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Reliant Home Services LLC DBA Norcal Grading And Land Clearing | Brandon Mark Claiborne | — | (760) 641 7266 | Other | El Dorado Hills · El Dorado County | — | — |