| Powell's Environmental Graphics LLC | La Donrick Earl Powell | — | (415) 937 8267 | Other | Martinez · Contra Costa County | — | — |
| Power Builders | Floyd Antonio Case | — | (925) 243 7156 | Electricians | Antioch · Contra Costa County | — | — |
| Power Commercial Electrical Services LLC | Allan Phillip Sanderson | — | (510) 224 0560 | Electricians | Martinez · Contra Costa County | — | — |
| Power Expert Electric | Thaplay Tenzin | powerexpertelectric@gmail.com | (510) 365 7776 | Electricians | Richmond · Contra Costa County | — | — |
| Powers House Construction | David Roland Powers | — | (510) 672 1129 | GC, remodel, ADU | El Cerrito · Contra Costa County | — | — |
| Ppcs Corp | David Michael Popa | — | (510) 376 4919 | Other | Pleasant Hill · Contra Costa County | — | — |
| Ppwpm INC | Brandon Michael Sr| Cody Brandon Michael Cody | — | (510) 691 5797 | Other | Pinole · Contra Costa County | — | — |
| Pr Construction Group LLC | Derek Yoav Perez | — | (925) 510 1361 | GC, remodel, ADU | Concord · Contra Costa County | — | — |
| Pradeep Kumar Handyman Services | Kumar Pradeep | — | (510) 282 3201 | GC, remodel, ADU | Richmond · Contra Costa County | — | — |
| Prado Pro Painting INC | Enrique Jr Martinez | — | (510) 407 4605 | Windows, patio, painters | Richmond · Contra Costa County | — | — |
| Pratt Brothers Construction INC | Jeff Bryan Pratt | — | (925) 890 3269 | GC, remodel, ADU | Canyon · Contra Costa County | — | — |
| Pratt Security Systems | Joseph Marshall Pratt | — | (408) 745 7290 | Alarm and generators | Bethel Island · Contra Costa County | — | — |
| Praxdoor INC | Rosales Moises Zelaya | info@praxdoor.com | (510) 978 3860 | Other | San Ramon · Contra Costa County | — | — |
| Precesion Construction | Zhu Hongchao | — | (817) 789 1214 | GC, remodel, ADU | El Cerrito · Contra Costa County | — | — |
| Precise Builders & Restoration | Erik Ronald Haroldsen | info@precisebuildersrestoration.com | (929) 330 6310 | Other roofers | Walnut Creek · Contra Costa County | — | — |
| Precise Garage Door And Gates | Yossi Chaim Karvani | — | (929) 330 6310 | Other | Concord · Contra Costa County | — | — |
| Precise Roofing INC | Precise Roofing INC | — | (888) 288-1885 | Other roofers | Walnut Creek · Contra Costa County | — | — |
| Precision Air Solutions LLC | Manuel Ronald Ron | — | (925) 848 5372 | HVAC | Antioch · Contra Costa County | — | — |
| Precision Building & Design | Precision Building & Design | — | (925) 478 6613 | GC, remodel, ADU | Walnut Creek · Contra Costa County | — | — |
| Precision Cabinets & Trim | Paul Edward Taylor | — | (925) 634 5552 | GC, remodel, ADU | Brentwood · Contra Costa County | — | — |
| Precision Construction | Steve Nick Apostolopoulos | — | (925) 286 4588 | GC, remodel, ADU | Alamo · Contra Costa County | — | — |
| Precision Contractor | Precision Contractor | — | (720) 633 6499 | GC, remodel, ADU | Richmond · Contra Costa County | — | — |
| Precision Design Source & Construction | Paul Edward Taylor | — | (925) 634 5552 | GC, remodel, ADU | Brentwood · Contra Costa County | — | — |
| Precision Fiber Optics INC | Joseph Manuel Jimenez Custer | — | (909) 921 9900 | Other | Brentwood · Contra Costa County | — | — |
| Precision Finish Remodeling INC | Paulo Sergio Le Ribeiro | info@pfrpro.com | (510) 680 0505 | GC, remodel, ADU | Walnut Creek · Contra Costa County | — | — |
| Precision Flooring & Carpet | Ortiz Brandon Espinoza | — | (925) 852 4010 | Other | Pittsburg · Contra Costa County | — | — |
| Precision Flooring And Carpet Care | Precision Flooring And Carpet Care | — | (925) 548 0998 | Other | San Ramon · Contra Costa County | — | — |
| Precision Painting & Moulding | Precision Painting & Moulding | — | (925) 270 9419 | Windows, patio, painters | Orinda · Contra Costa County | — | — |
| Precision Plumbing | Precision Plumbing | workorders@precision-plumbing.com | (925) 212 3674 | Other | Walnut Creek · Contra Costa County | — | — |
| Precision Plumbing & Contracting INC | Ronald Thomas Harrison | — | (925) 240 0565 | GC, remodel, ADU | Brentwood · Contra Costa County | — | — |
| Precision Scaffolding Systems | Stevan Daniel Gonzalez | ramirezfm3@gmail.com | (925) 877 1352 | Other | Oakley · Contra Costa County | — | — |
| Precision Valve And Controls LLC | Jason Edward Phillips | — | (925) 315 9174 | HVAC | Antioch · Contra Costa County | — | — |
| Precision Woodworks | Precision Woodworks | — | (925) 432 7515 | Other | Pittsburg · Contra Costa County | — | — |
| Premier Construction Company | Leonard Lee Sr Tyler | — | (925) 665 4056 | GC, remodel, ADU | Bay Point · Contra Costa County | — | — |
| Premier Engineering & Construction LLC | Alexander Grant Ritchie | — | (925) 759 9900 | Electricians | Brentwood · Contra Costa County | — | — |
| Premier Flooring INC | Ramos Javier | — | (925) 864 2997 | Other | Antioch · Contra Costa County | — | — |
| Premier Hardwood Floor INC | Kouzman Krastev Pavlov | — | (415) 516 5146 | Other | Concord · Contra Costa County | — | — |
| Premier Kitchen And Bath Remodel | Premier Kitchen And Bath Remodel | — | (925) 890 9903 | GC, remodel, ADU | Oakley · Contra Costa County | — | — |
| Premier Media Integration | Gordon Daniel Fava | — | (925) 250 3536 | Other | Concord · Contra Costa County | — | — |
| Premier Painting & Wallcovering INC | Yesenia Orta | — | (925) 755 8616 | Windows, patio, painters | Antioch · Contra Costa County | — | — |