| Perfect Painting Co. | Perfect Painting Co. | perfectpaintingco@gmail.com | (949) 993-0239 | Windows, patio, painters | Lake Forest · Lake County | — | — |
| Perry Painting | Perry Painting | — | (707) 245 3086 | Windows, patio, painters | Lakeport · Lake County | — | — |
| Pest Control In Corona Menifee Temecula Canyon Lake Ca | Pest Control In Corona Menifee Temecula Canyon Lake Ca | — | (888) 217-8123 | Pest, tile roofs | Murrieta · Lake County | — | — |
| Pest Control Lake Elsinore Ca | Pest Control Lake Elsinore Ca | partners@pestcontrollakeelsinoreca.site | (951) 752-5267 | Pest, tile roofs | Lake Elsinore · Lake County | — | — |
| Petaluma Brushworks | Petaluma Brushworks | — | (707) 249 7402 | Windows, patio, painters | Upper Lake · Lake County | — | — |
| Peter Anthony Zitko | Peter Anthony Zitko | — | (707) 738 4423 | GC, remodel, ADU | Hidden Valley Lake · Lake County | — | — |
| Petrie Construction | Bryan James Petrie | — | (707) 696 8811 | GC, remodel, ADU | Lakeport · Lake County | — | — |
| Phil Willis Construction | Philip Craig Willis | — | (707) 355 1994 | GC, remodel, ADU | Kelseyville · Lake County | — | — |
| Pierson Mechanical | Pierson Mechanical | — | (707) 272 2511 | HVAC | Lakeport · Lake County | — | — |
| Pioneer Builders | Ryan Travis Foster | service@pioneer-builders.com | (302) 753-2600 | GC, remodel, ADU | Lakeport · Lake County | — | — |
| Plumas Lake Properties | Plumas Lake Properties | — | (530) 329-4814 | Property managers | Plumas Lake · Lake County | — | — |
| Pnd Construction | Philip Nicholas Day | — | (707) 533 0262 | GC, remodel, ADU | Kelseyville · Lake County | — | — |
| Poso Brothers Painting | Ryan James Poso | posobrothers@gmail.com | (707) 413 8197 | Windows, patio, painters | Lakeport · Lake County | — | — |
| Powerworks Electric INC | Steven Russell Mitten | — | (707) 350 0353 | Electricians | Kelseyville · Lake County | — | — |
| Precision Window Tint And Vinyl | Precision Window Tint And Vinyl | — | (707) 349 6604 | Other | Lakeport · Lake County | — | — |
| Premier Construction Remodeling | John Patrick Mullin | — | (415) 845 6039 | GC, remodel, ADU | Hidden Valley Lake · Lake County | — | — |
| Premier Fencing LLC | William Guiseppe Cestarollo | contact@premier-fencing.com | (707) 779 8311 | Other | Clearlake · Lake County | — | — |
| Preston Homes LLC | Jesse Daniel Preston | — | (707) 413 4233 | GC, remodel, ADU | Lakeport · Lake County | — | — |
| Prime Time Builders | Todd Christopher Williams | — | (707) 363 0386 | GC, remodel, ADU | Lower Lake · Lake County | — | — |
| Profitt Construction INC | Steven Darrell Profitt | — | (707) 530 8661 | GC, remodel, ADU | Kelseyville · Lake County | — | — |
| Provincial Color Painting & Decorating | Provincial Color Painting & Decorating | — | (707) 279 1604 | Windows, patio, painters | Lakeport · Lake County | — | — |
| Pullman Heating & Cooling INC | Jacob Sterling Pullman | — | (707) 355 0124 | HVAC | Middletown · Lake County | — | — |
| Quality Flooring | Quality Flooring | — | (707) 900 1021 | Other | Kelseyville · Lake County | — | — |
| Quality Home Service | Jeffrey Wayne Hawks | — | (707) 292 2454 | GC, remodel, ADU | Lucerne · Lake County | — | — |
| R B Peters | R B Peters | — | (707) 263 3678 | GC, remodel, ADU | Lakeport · Lake County | — | — |
| R B Plumbing And Mechanical | R B Plumbing And Mechanical | — | (707) 299 9165 | Other | Hidden Valley Lake · Lake County | — | — |
| R C Roofing | Ronald Lee Curtis | — | (707) 480 2709 | Other roofers | Kelseyville · Lake County | — | — |
| R H Sewer And Septic | R H Sewer And Septic | — | (831) 278 2816 | Other | Lakeport · Lake County | — | — |
| R J Design & Development | R J Design & Development | — | (707) 292 7400 | GC, remodel, ADU | Lower Lake · Lake County | — | — |
| R O Construction | O'neal Rudolf | — | (707) 355 3377 | GC, remodel, ADU | Lower Lake · Lake County | — | — |
| R Y Construction | Ruben Garcia Ybarra | — | (707) 909 1514 | Other | Lower Lake · Lake County | — | — |
| Radcon INC | Rodney Lee Padel | — | (707) 696 4984 | Other | Lakeport · Lake County | — | — |
| Rainbow Paving Co | Thomas Marco Fortino | — | (707) 994 8616 | Other | Clearlake · Lake County | — | — |
| Randall Construction | Randall Keith Moon | — | (707) 600 1426 | GC, remodel, ADU | Lucerne · Lake County | — | — |
| Randy Judy Construction | Randy Lamont Judy | — | (707) 331 5944 | GC, remodel, ADU | Clearlake · Lake County | — | — |
| Ratcliffe Custom Flooring INC | Justin William Ratcliffe | — | (707) 349 3053 | Other | Lakeport · Lake County | — | — |
| Raymond La Flamme | Raymond La Flamme | — | (707) 272 3297 | Other | Lakeport · Lake County | — | — |
| Real Plumbing And Heating INC | Peter Mack Ambrosia | — | (415) 282 5599 | HVAC | Clearlake Oaks · Lake County | — | — |
| Red's Construction | Gregory Michael Mc Rae | — | (707) 994 7840 | GC, remodel, ADU | Lower Lake · Lake County | — | — |
| Redmond Construction | Kelly Adam Redmond | — | (707) 530 5564 | GC, remodel, ADU | Kelseyville · Lake County | — | — |