| Plumbing Solutions | Plumbing Solutions | — | (209) 540 8412 | Other | Ceres · Stanislaus County | — | — |
| Pool Dawg Construction LLC | Jason Robert Willi Samarin | — | (209) 556 8638 | Pool | Modesto · Stanislaus County | — | — |
| Pool Diggers | Miguel Alejandro - Baca | — | (209) 342 7298 | Other | Modesto · Stanislaus County | — | — |
| Populink Technology | Populink Technology | — | (510) 861 2246 | Other | Modesto · Stanislaus County | — | — |
| Poulsen Pools | Poulsen Pools | poulsenpools@hotmail.com | (209) 526 4486 | Pool | Modesto · Stanislaus County | — | — |
| Power Trip Electric | Sarah Fitch Murphy | info@powertripelectric.com | (408) 829 9634 | Electricians | Oakdale · Stanislaus County | — | — |
| Powered By Green | Powered By Green | — | (209) 261 3672 | Electricians | Modesto · Stanislaus County | — | — |
| Pr Custom Framing | Ramos Fernando Pizano | — | (209) 550 1542 | Other | Modesto · Stanislaus County | — | — |
| Preciado Plastering | Preciado Plastering | — | (209) 221 1016 | Other | Salida · Stanislaus County | — | — |
| Precision Air Balance | Derrick John Manqueros | — | (209) 883 9125 | Other | Turlock · Stanislaus County | — | — |
| Precision Connections | Precision Connections | — | (209) 669 8584 | Other | Denair · Stanislaus County | — | — |
| Precision Finish & Install | Precision Finish & Install | — | (209) 604 1776 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Precision Glass & Aluminum | Anthony Iv Centeno | — | (209) 409 7574 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Precision Home Improvement | Precision Home Improvement | — | (209) 277 2586 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Precision Line Roofing LLC | Lopez Jose Crispin | — | (209) 225 0084 | Other roofers | Modesto · Stanislaus County | — | — |
| Precision Stairs INC | Shannon Lynn Frantz | — | (209) 492 9800 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Precision Tile & Stone | Precision Tile & Stone | jguimond84@gmail.com | (209) 549 6565 | Other | Riverbank · Stanislaus County | — | — |
| Premier Glass & Aluminum INC | Deena Colleen Greenshaw | — | (209) 835 2288 | Windows, patio, painters | Oakdale · Stanislaus County | — | — |
| Premier Valley Flooring LLC | Eliazer Echevarria | premiervalleyflooring@gmail.com | (209) 613 1782 | Other | Riverbank · Stanislaus County | — | — |
| Premium Plumbing & Drain INC | Scott Andrew Stevens | — | (209) 587 6510 | Other | Turlock · Stanislaus County | — | — |
| Premium Quality Painting | Premium Quality Painting | — | (209) 324 2685 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Premium Windows And Doors | Premium Windows And Doors | — | (562) 630-9696 | Windows, patio, painters | Corona · Stanislaus County | — | — |
| Prime Comfort Heating & Air | Prime Comfort Heating & Air | — | (209) 809 7884 | HVAC | Turlock · Stanislaus County | — | — |
| Prime Painting | Prime Painting | contact@sansoxygen.com | (650) 518 0258 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Prime Power Electric | Mario Eduardo Ibarra | — | (209) 402 2104 | Electricians | Oakdale · Stanislaus County | — | — |
| Primetime Painting INC | David Paul Yarbrough | — | (209) 609 5774 | Windows, patio, painters | Hughson · Stanislaus County | — | — |
| Priority Plumbing Company | Jeremy Joseph James Love | — | (209) 499 7354 | Other | Modesto · Stanislaus County | — | — |
| Pristine Plumbing & Rooter LLC | Angel Jr Espinosa | — | (510) 689 7758 | Other | Hughson · Stanislaus County | — | — |
| Pristine Residential Services | Vallarta Albert | — | (209) 480 0983 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Pro - Se Services INC | Steve Espinoza | — | (209) 543 1600 | Other | Modesto · Stanislaus County | — | — |
| Pro - Wide Drywall | Pro - Wide Drywall | — | (209) 620 0822 | Other | Hughson · Stanislaus County | — | — |
| Pro 1 Services INC | Curtis Marshal Cook | — | (209) 770 6099 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Pro Edge Services And Training INC | Charles William Denny | — | (209) 604 4016 | HVAC | Waterford · Stanislaus County | — | — |
| Pro Mend Renovations | Hano Yadegar | — | (209) 250 3009 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Pro Pumping LLC | Mark Anthony Fontana | — | (209) 351 5970 | Other | Salida · Stanislaus County | — | — |
| Pro Star Electric INC | Victor Uriel Vazquez | — | (209) 567 2992 | Electricians | Ceres · Stanislaus County | — | — |
| Pro Touch Painting | Pro Touch Painting | — | (209) 321 3523 | Windows, patio, painters | Ceres · Stanislaus County | — | — |
| Pro-drywall INC | Alberto Valdovinos | proficientdrywall@gmail.com | (209) 531 1004 | Other | Ceres · Stanislaus County | — | — |
| Pro-wide Drywall INC | Jesus Salvador Cortes Huerta | — | (209) 620 0822 | GC, remodel, ADU | Hughson · Stanislaus County | — | — |
| Process Cooling International LLC | Gary Clyde Dunn | — | (209) 578 1000 | HVAC | Modesto · Stanislaus County | — | — |