| Penniman Painting | Penniman Painting | contact@sansoxygen.com | (925) 947 2670 | Windows, patio, painters | Danville · Contra Costa County | — | — |
| Pennington Plumbing LLC | Matthew Frank Pennington | — | (925) 778 9600 | Other | Antioch · Contra Costa County | — | — |
| Pepper Investments INC | David Allen Chitwood | — | (925) 240 5100 | GC, remodel, ADU | Brentwood · Contra Costa County | — | — |
| Percho's Construction | Ramirez Perez Pablo | perchosconstruction@gmail.com | (415) 987 4792 | GC, remodel, ADU | Richmond · Contra Costa County | — | — |
| Perea's Landscaping | Perea's Landscaping | — | (650) 750 6670 | Windows, patio, painters | Antioch · Contra Costa County | — | — |
| Pereyra Construction | Dennis Brailovsky Pereyra | — | (925) 597 1487 | GC, remodel, ADU | Antioch · Contra Costa County | — | — |
| Perez Construction | Perez Lopez Luis | info@perezconstruction.com | (510) 385 8267 | GC, remodel, ADU | San Pablo · Contra Costa County | — | — |
| Perez Nursery & Landscaping INC | Luis Antonio Perez | — | (925) 516 1052 | Windows, patio, painters | Brentwood · Contra Costa County | — | — |
| Perez Plumbing | Perez Plumbing | — | (925) 301 3954 | Other | Bethel Island · Contra Costa County | — | — |
| Perez Plumbing | Perez Plumbing | — | (510) 508 0333 | Other | El Sobrante · Contra Costa County | — | — |
| Perez Plumbing Services INC | Perez Lopez Edy | — | (510) 447 9663 | Other | San Pablo · Contra Costa County | — | — |
| Perez Rough Frame Specialists | Blake Alan Sanford | — | (415) 419 4496 | GC, remodel, ADU | San Pablo · Contra Costa County | — | — |
| Perfect Coating | Perfect Coating | — | (925) 766 0445 | Windows, patio, painters | Antioch · Contra Costa County | — | — |
| Perfect Star Heating Cooling & Electrical | Christopher Mark Donzelli | — | (925) 550 0505 | HVAC | Antioch · Contra Costa County | — | — |
| Perfection Painting Incorporated | Matthew Paul Jarman | — | (415) 564 5640 | Windows, patio, painters | El Cerrito · Contra Costa County | — | — |
| Performance Flooring Service INC | Allen Edward Huie | — | (925) 580 6187 | Other | Brentwood · Contra Costa County | — | — |
| Performance Mechanical INC | Andrew Thomas Hosler | interested@domainmarket.com | (925) 432 4080 | GC, remodel, ADU | Pittsburg · Contra Costa County | — | — |
| Perkins Painting Company | Ronondo Jr Perkins | — | (925) 550 8928 | Windows, patio, painters | Oakley · Contra Costa County | — | — |
| Perry's Electrical Services | Kyle Jeffery Perry | — | (925) 413 7602 | Electricians | Brentwood · Contra Costa County | — | — |
| Pest Protection Services | Pest Protection Services | cliftoncashflows@gmail.com | (925) 325-4789 | Pest, tile roofs | Brentwood · Contra Costa County | — | — |
| Peter Bakke | Peter Bakke | — | (510) 282 9912 | GC, remodel, ADU | Richmond · Contra Costa County | — | — |
| Peter Built Construction | Peter Eugene Onopko | — | (925) 219 7322 | GC, remodel, ADU | Concord · Contra Costa County | — | — |
| Peter Construction | Tuan Anh Bui | — | (925) 323 0378 | GC, remodel, ADU | San Ramon · Contra Costa County | — | — |
| Peter Electric | Ramirez Saldate Pedro | — | (510) 772 8007 | Electricians | Pittsburg · Contra Costa County | — | — |
| Peter Electric INC | Ayala Peter Tellez | — | (510) 367 5539 | Electricians | El Sobrante · Contra Costa County | — | — |
| Peter G Charbonneau | Peter G Charbonneau | — | (510) 421 0470 | Windows, patio, painters | Pittsburg · Contra Costa County | — | — |
| Peter Irving Electric INC | Peter Lehane Ii Irving | services@peterirvingelectric.com | (925) 933 6879 | Electricians | Alamo · Contra Costa County | — | — |
| Peter Keneth Whipple DBA Pete's Pools | Pete's Pools | — | (925) 640 2036 | GC, remodel, ADU | Walnut Creek · Contra Costa County | — | — |
| Peter Shaw General Contractor | Peter Shaw General Contractor | — | (925) 348 1226 | GC, remodel, ADU | Martinez · Contra Costa County | — | — |
| Peterson Communications Group INC | Greg Anthony Peterson | — | (925) 335 0800 | Other | Martinez · Contra Costa County | — | — |
| Peterson Construction Services | Jefferson Patterson Peterson | — | (925) 759 7798 | GC, remodel, ADU | San Ramon · Contra Costa County | — | — |
| Petrella Concrete | Petrella Concrete | — | (415) 308 3291 | Other | Richmond · Contra Costa County | — | — |
| Petro - Analytical INC | Jerome Kevin Summerlin | clientservices@petro-analytical.com | (925) 253 0591 | Other | Orinda · Contra Costa County | — | — |
| Pfs Pool And Spa Services INC | Naji Butros Hattar | — | (925) 818 2440 | Pool | Danville · Contra Costa County | — | — |
| Pgra Construction | Sabzevari Ali | — | (925) 262 7888 | GC, remodel, ADU | Clayton · Contra Costa County | — | — |
| Pham Landscaping Service | Dzung Trong Pham | — | (925) 625 0847 | Windows, patio, painters | Pittsburg · Contra Costa County | — | — |
| Pham's Plumbing | Pham's Plumbing | — | (510) 282 6336 | Other | Antioch · Contra Costa County | — | — |
| Phan Landscaping | Phan Tham | — | (925) 577 5428 | Windows, patio, painters | Concord · Contra Costa County | — | — |
| Phase One Electric INC | Joshua Daniel Freeman | — | (510) 363 2322 | Electricians | Pittsburg · Contra Costa County | — | — |
| Phast Rooter & Plumbing | Phast Rooter & Plumbing | — | (510) 879 5216 | Other | Concord · Contra Costa County | — | — |