| Plants And Nature Landscape | Plants And Nature Landscape | — | (925) 597 3808 | Windows, patio, painters | Pittsburg · Contra Costa County | — | — |
| Plaster Effect | Plaster Effect | — | (510) 838 0490 | Other | Richmond · Contra Costa County | — | — |
| Platinum Paver And Stone LLC | Juan Carlos Morfinleon | — | (510) 978 1153 | Other | Rodeo · Contra Costa County | — | — |
| Platinum Plumbing And Drains | Platinum Plumbing And Drains | — | (925) 301 7579 | Other | Concord · Contra Costa County | — | — |
| Platinum Underground INC DBA Aiken Underground | Manuel Antonio De Freitas | — | (925) 215 0542 | Other | Alamo · Contra Costa County | — | — |
| Pleasant Hill Construction | Lawrence Scott Fine | — | (925) 497 3459 | GC, remodel, ADU | Pleasant Hill · Contra Costa County | — | — |
| Pleasant Hill Electric INC | Stefan Cristian Demeyere | — | (707) 685 1277 | Electricians | Pleasant Hill · Contra Costa County | — | — |
| Pleasant Hill Roof Repair | Pleasant Hill Roof Repair | — | (925) 567-1867 | Other roofers | Pleasant Hill · Contra Costa County | — | — |
| Pleasant Home Inspections | Pleasant Home Inspections | — | (925) 822-2699 | Inspectors | Concord · Contra Costa County | — | — |
| Plexis Media INC | Ardis Mae Weeden | — | (650) 678 7547 | Electricians | Walnut Creek · Contra Costa County | — | — |
| Plexus Security LLC | Nathan Cabacungan Jaballa | — | (925) 298 2240 | Alarm and generators | Pittsburg · Contra Costa County | — | — |
| Plum Designs And Blinds | Plum Designs And Blinds | — | (925) 935 2161 | Other | Walnut Creek · Contra Costa County | — | — |
| Plumbing Art INC | Danilov Anatoliy | — | (925) 854 9848 | Other | San Ramon · Contra Costa County | — | — |
| Plumbing Pro | Froilan Adolfo Diaz | info@plumbingpro.com | (415) 334-0733 | Other | Hercules · Contra Costa County | — | — |
| Plumbing Unlimited California | Plumbing Unlimited California | — | (925) 389 4495 | Other | San Ramon · Contra Costa County | — | — |
| Pmi Contra Costa | Pmi Contra Costa | — | (925) 222-5601 | Property managers | Walnut Creek · Contra Costa County | — | — |
| Pmi East Bay | Pmi East Bay | jp.maeder@pmieastbay.com | (925) 932-1700 | Property managers | Contra Costa · Contra Costa County | — | — |
| Pn Construction | Nagar Pinchas | — | (510) 517 1117 | GC, remodel, ADU | El Sobrante · Contra Costa County | — | — |
| Pnm Plumbing INC | Gerald Anthony Flynn | — | (707) 771 4971 | Other | San Ramon · Contra Costa County | — | — |
| Point Of View Builders INC | James Kevin Wirfel | — | (925) 708 3770 | Electricians | Walnut Creek · Contra Costa County | — | — |
| Polar Air Services | Stephen Michael Vigil | — | (925) 687 4771 | HVAC | Clayton · Contra Costa County | — | — |
| Polar Mechanical INC | Conrad Rangel Lopez | info@polarmechanical.com | (925) 688 1234 | HVAC | Concord · Contra Costa County | — | — |
| Polartech LLC | Sean Daniel Christie | — | (925) 940 7341 | HVAC | Walnut Creek · Contra Costa County | — | — |
| Polichio Construction INC | Joseph Polichio | — | (415) 350 7100 | GC, remodel, ADU | Moraga · Contra Costa County | — | — |
| Polis Plumbing INC | Emil Asenov Yurukov | office@polisplumbing.com | (925) 336 2724 | Other | Danville · Contra Costa County | — | — |
| Polyzos Construction INC | George Theodore Polyzos | — | (510) 719 7632 | GC, remodel, ADU | Danville · Contra Costa County | — | — |
| Pond Revival Pumps Filters Maintenance | Pond Revival Pumps Filters Maintenance | — | (510) 333 9533 | Pool | El Cerrito · Contra Costa County | — | — |
| Ponderosa Landscaping | Ponderosa Landscaping | — | (510) 815 4921 | Windows, patio, painters | Pinole · Contra Costa County | — | — |
| Pool & Landscape Development INC | Todd Raemond Maltbie | — | (925) 428 0036 | GC, remodel, ADU | Brentwood · Contra Costa County | — | — |
| Pool And Spa Doctors INC | Anthony Paul Azevedo | — | (925) 852 7187 | Pool | Concord · Contra Costa County | — | — |
| Pool And Spa Solutions | Pool And Spa Solutions | — | (925) 708 7319 | Pool | Walnut Creek · Contra Costa County | — | — |
| Pool Time | Pool Time | — | (925) 260 1017 | Pool | Danville · Contra Costa County | — | — |
| Pool Whip Pros INC | Wesley Jesse Teixeira | — | (925) 768 6495 | Pool | Concord · Contra Costa County | — | — |
| Pop Painting | Pop Painting | — | (925) 727 8440 | Windows, patio, painters | Walnut Creek · Contra Costa County | — | — |
| Popescu Construction | Marius Popescu | — | (925) 819 1735 | GC, remodel, ADU | Walnut Creek · Contra Costa County | — | — |
| Portals | William Richard Jr Murphy | — | (510) 676 6664 | Windows, patio, painters | El Sobrante · Contra Costa County | — | — |
| Portela's Plumbing | Portela's Plumbing | service@portelasplumbing.com | (415) 305 2955 | Other | El Sobrante · Contra Costa County | — | — |
| Portillo's Paving Company INC DBA Ppc | Eduardo Portillo | — | (925) 499 7986 | Other | Pittsburg · Contra Costa County | — | — |
| Posch Tile | Posch Tile | oliver@poschtile.com | (510) 932 5895 | Other | Moraga · Contra Costa County | — | — |
| Powell Mechanical INC | Jeremey Joseph Powell | — | (925) 222 5522 | HVAC | Concord · Contra Costa County | — | — |