| Prestige Landscaping | Prestige Landscaping | — | (707) 501 3575 | Windows, patio, painters | Napa · Napa County | — | — |
| Prestige Painting | Prestige Painting | — | (707) 529 8762 | Windows, patio, painters | Napa · Napa County | — | — |
| Price Landscape Services INC | Thomas Locke Price | — | (707) 252 6319 | Windows, patio, painters | Napa · Napa County | — | — |
| Pridmore Brothers Construction INC | Clinton Roy Ii Pridmore | — | (707) 224 0682 | GC, remodel, ADU | Napa · Napa County | — | — |
| Pridmore Construction LLC | Austin Lee Pridmore | pridmoreconstruction@gmail.com | (707) 754 8952 | Other | Napa · Napa County | — | — |
| Prima Floors | Bienenfeld Mark | — | (707) 257 2536 | Other | Napa · Napa County | — | — |
| Prime Time Audio Video | Prime Time Audio Video | chris@prime-time-audio-video.com | (310) 871 2194 | Other | St Helena · Napa County | — | — |
| Pro Finish Painting & Decorating | Pro Finish Painting & Decorating | — | (707) 252 4989 | Windows, patio, painters | Napa · Napa County | — | — |
| Pro Landscaping | Pro Landscaping | — | (415) 827 1889 | Windows, patio, painters | American Canyon · Napa County | — | — |
| Procountertop U S A | Procountertop U S A | — | (415) 235 0902 | GC, remodel, ADU | American Canyon · Napa County | — | — |
| Professional Rental Organization Inc. | Professional Rental Organization Inc. | — | (707) 254-7368 | Property managers | Napa · Napa County | — | — |
| Proscape Landscape Design | Proscape Landscape Design | — | (707) 696 1894 | Windows, patio, painters | Napa · Napa County | — | — |
| Pucci | Ezra Cole Pucci | paintsonoma@gmail.com | (707) 227 6866 | Windows, patio, painters | Napa · Napa County | — | — |
| Quality Heating & Air Conditioning Service | John Lester Shanks | — | (707) 315 5944 | HVAC | American Canyon · Napa County | — | — |
| Quality Incorporated Site Work & Underground | Richard Allen Bissett | — | (707) 257 7386 | Other | Napa · Napa County | — | — |
| Quality Paint Contractor | Quality Paint Contractor | — | (415) 483 5524 | Windows, patio, painters | Napa · Napa County | — | — |
| Quality Works Construction LLC | Michael Isaac Sanchez | — | (707) 299 8208 | GC, remodel, ADU | Napa · Napa County | — | — |
| Quentin Johnston Construction DBA Johnston General Engineering | Quentin James Johnston | — | (707) 337 8032 | Windows, patio, painters | Napa · Napa County | — | — |
| Quinteros Q Construction INC | Andres Quintero-Gomez | — | (707) 236 7981 | GC, remodel, ADU | St Helena · Napa County | — | — |
| R & M Development | R & M Development | — | (650) 245 2448 | GC, remodel, ADU | Napa · Napa County | — | — |
| R & M Grading INC | Alexander Rodriguez | — | (707) 255 5009 | Other | Napa · Napa County | — | — |
| R & R Maher Construction Company INC | Ken Scolavino | — | (707) 552 0330 | GC, remodel, ADU | Napa · Napa County | — | — |
| R & S Glazing Specialties INC | Richard Norman Johnson | — | (707) 257 7111 | Windows, patio, painters | American Canyon · Napa County | — | — |
| R & Son Construction INC | Juan Antonio Camacho Olvera | — | (707) 307 8527 | GC, remodel, ADU | Napa · Napa County | — | — |
| R E Bradley General Bld Cont | Robert Eugene Jr Bradley | — | (707) 788 2755 | GC, remodel, ADU | Napa · Napa County | — | — |
| R E Maher INC | Rodney Eugene Maher | — | (707) 642 3907 | GC, remodel, ADU | American Canyon · Napa County | — | — |
| R H Hess Development Company | Richard Harold Hess | — | (707) 255 8075 | GC, remodel, ADU | Napa · Napa County | — | — |
| R Heritage Design Build INC | Philip R Weeks | — | (916) 601 8566 | GC, remodel, ADU | Napa · Napa County | — | — |
| R L Landscaping | R L Landscaping | — | (707) 363 4976 | Windows, patio, painters | American Canyon · Napa County | — | — |
| R Pridmore Engineering | R Pridmore Engineering | — | (707) 227 5506 | Other | Napa · Napa County | — | — |
| R Robinsons Painting And Decorating Contractors | Renwick Darrell Robinson | — | (707) 280 0087 | Windows, patio, painters | American Canyon · Napa County | — | — |
| R Simpkins Construction | Reginald Glen Simpkins | — | (707) 249 3675 | GC, remodel, ADU | Napa · Napa County | — | — |
| R Y Construction | Richard Ray Yarlott | — | (707) 363 2569 | GC, remodel, ADU | Napa · Napa County | — | — |
| Ra Williams Oak Creek Canyon Builders | Richard Allen Williams | — | (707) 980 0966 | GC, remodel, ADU | American Canyon · Napa County | — | — |
| Rafa's Painting | Rafa's Painting | — | (707) 738 0495 | Windows, patio, painters | Napa · Napa County | — | — |
| Randy Mihm | Randy Mihm | — | (707) 299 7267 | GC, remodel, ADU | Napa · Napa County | — | — |
| Rare Earth Hardwood Floors | Aaron Joseph Murphy | michaelmelbin@yahoo.com | (707) 477 7508 | Other | Napa · Napa County | — | — |
| Rasmusen Painting | Rasmusen Painting | — | (707) 815 6188 | Windows, patio, painters | Napa · Napa County | — | — |
| Ray Smith | Ray Smith | — | (925) 289 2143 | GC, remodel, ADU | Napa · Napa County | — | — |
| Ray's Glass | Mark Rais Amador | — | (707) 963 5223 | Windows, patio, painters | St Helena · Napa County | — | — |