| Placerville Paving | Placerville Paving | — | (530) 308 4264 | Other | West Sacramento · Yolo County | — | — |
| Platinum Contracting Elite | Christian Nickolas Acosta | — | (916) 343 2850 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Platinum Heating And Air | Platinum Heating And Air | — | (530) 383 2046 | HVAC | Woodland · Yolo County | — | — |
| Plumb Crazy | Plumb Crazy | — | (530) 383 0391 | Other | Woodland · Yolo County | — | — |
| Poppy Electric | Richard Earl Wulff | — | (707) 628 9038 | Electricians | Winters · Yolo County | — | — |
| Powell's Countertops | Powell's Countertops | — | (530) 795 3251 | Other | Winters · Yolo County | — | — |
| Pratt Construction | Robert Martin Pratt | — | (530) 304 6259 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Precision Communications INC | Matthew John Hennigan | — | (312) 388 2827 | Other | West Sacramento · Yolo County | — | — |
| Precision Plumbing | Precision Plumbing | workorders@precision-plumbing.com | (707) 359 9629 | Other | Woodland · Yolo County | — | — |
| Presidio Plastering | Presidio Plastering | — | (916) 718 4409 | Other | West Sacramento · Yolo County | — | — |
| Preventive Maintenance | Brett G Dockter | — | (530) 753 5638 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Pride Heating And Air | Pride Heating And Air | — | (916) 882 4147 | HVAC | West Sacramento · Yolo County | — | — |
| Prime Electric | Robert Severo Sanchez | — | (530) 908 2427 | Electricians | Woodland · Yolo County | — | — |
| Prindle Construction | Robert Charles Prindle | — | (815) 295 0125 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Prism Painting | Prism Painting | — | (530) 554 6780 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Prism Pool Supplies INC | Erik Gunnar Larum | — | (530) 902 6713 | Pool | Woodland · Yolo County | — | — |
| Pro West Wall Products INC | Ryan Mathew Komula | — | (916) 572 0742 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| Probe Tech Drilling & Water Well | Carlos Enrique Morales | — | (530) 601 1287 | Other | Woodland · Yolo County | — | — |
| Prodigy Construction | Hector Joel Jr Perez | — | (916) 968 0386 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Professional Painting | Jesus Ernesto Ruiz | — | (916) 283 1535 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Pyramid Flooring Systems INC | Kerry David Soderstrom | — | (530) 750 0386 | Other | Davis · Yolo County | — | — |
| Q5 Tile | Q5 Tile | — | (530) 304 4136 | Other | Woodland · Yolo County | — | — |
| Quality Standard Floors | Quality Standard Floors | — | (916) 594 6703 | Other | West Sacramento · Yolo County | — | — |
| Quam General Engineering INC | Justin Dale Quam | — | (530) 681 4994 | Other | Woodland · Yolo County | — | — |
| Quintero's Painter | Quintero's Painter | — | (530) 383 9255 | Windows, patio, painters | West Sacramento · Yolo County | — | — |
| R & A Landscaping & Design | Ramon Acevedo Escareno | — | (530) 312 2675 | Windows, patio, painters | Woodland · Yolo County | — | — |
| R & K Septic & Tractor Service | Richard B Mc Cauley | — | (916) 541 4778 | Other | West Sacramento · Yolo County | — | — |
| R & R Construction | Richard Allen Sr Rumsey | — | (530) 383 0824 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| R & R Enterprises | Rick Lynn Bunfill | matts@r-r-enterprises.com | (530) 406 1571 | Other roofers | Davis · Yolo County | — | — |
| R & R Pacific Construction DBA R & R Pacific Excavation | Raul Melendez | — | (530) 668 7525 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| R A B Contractors | Robert Allan Bunfill | — | (530) 753 2120 | Other roofers | Davis · Yolo County | — | — |
| R A Hartman & Sons Construction LLC | Ricky Allen Hartman | — | (916) 775 1832 | GC, remodel, ADU | Clarksburg · Yolo County | — | — |
| R C Construction | Russel Edward Carrel | — | (510) 734 3781 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| R C Garage Door | R C Garage Door | office@rcgaragedoor.com | (916) 704 9992 | Other | West Sacramento · Yolo County | — | — |
| R C Haseltine Construction | Matthew Lawrence Haseltine | — | (530) 574 3016 | GC, remodel, ADU | Davis · Yolo County | — | — |
| R D Concrete | R D Concrete | rdconcrete@rdconcrete.com | (909) 754 1598 | Other | Winters · Yolo County | — | — |
| R D Countertop & Shower Millwork | Russell Lynn Jr Dommer | — | (530) 554 5592 | Other | Winters · Yolo County | — | — |
| R D Y Services | Robert Damion Yancey | — | (916) 956 1449 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| R E R Construction | Richard Edward Ruth | — | (415) 988 4662 | GC, remodel, ADU | Winters · Yolo County | — | — |
| R H 1 Construction | Richard Mc Kinley Harris | — | (707) 365 8028 | GC, remodel, ADU | Winters · Yolo County | — | — |