| J B General Contractor | J B General Contractor | jb@jbgeneralcontractor.com | (916) 240 9596 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J B J Associates | Jerald La Vern Jones | info@jbjassociates.com | (530) 559 9932 | GC, remodel, ADU | Meadow Vista · Placer County | — | — |
| J B S Builders INC | Jeffrey Brian Smith | — | (916) 240 8325 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J Brothers Construction LLC | Jeremy Edward Coloretti | — | (916) 220 6103 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| J C Construction | Julio Antonio Gomez Prudencio | — | (916) 474 0004 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J C Plumbing | J C Plumbing | — | (916) 289 6452 | Other | Roseville · Placer County | — | — |
| J C S Construction | James Carson Silva | — | (530) 847 8067 | GC, remodel, ADU | Gold Run · Placer County | — | — |
| J C Snyder Construction | Jeffery Charles Snyder | — | (916) 599 5473 | GC, remodel, ADU | Meadow Vista · Placer County | — | — |
| J Cline Plaster | Ryan Edward Smith | — | (916) 808 1785 | HVAC | Rocklin · Placer County | — | — |
| J Craythorn Construction | Jake Alan Craythorn | — | (916) 316 3319 | GC, remodel, ADU | Auburn · Placer County | — | — |
| J D I Const | J D I Const | — | (415) 517 2242 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| J D Jones Roof Crafter INC | Keith Lawrance Ketteringham | — | (916) 663 9395 | Other roofers | Newcastle · Placer County | — | — |
| J D Pasquetti Engineering LLC | Jason D Pasquetti | — | (916) 543 9401 | Other | Roseville · Placer County | — | — |
| J D R Construction | Jason David Ryan | impallari@gmail.com | (916) 342 7341 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| J D Wood Design | Jacob Stuart Duane | — | (916) 305 5404 | Other | Roseville · Placer County | — | — |
| J E J Construction INC | John Edwin Johnson | — | (916) 870 0916 | GC, remodel, ADU | Auburn · Placer County | — | — |
| J Franko Electric INC | Jason Lish Frankovich | — | (916) 343 1772 | Electricians | Lincoln · Placer County | — | — |
| J G Builder | J G Builder | — | (916) 740 9418 | Other | Roseville · Placer County | — | — |
| J H Construction | Jerome James Hood | — | (916) 501 6943 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J H Mechanical Services | Jeremiah Joseph Hodge | — | (916) 871 2066 | HVAC | Auburn · Placer County | — | — |
| J Hill Construction INC | John Alan Hill | — | (916) 825 9503 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J J Builders | J J Builders | — | (707) 396 9070 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J Jowers Painting | J Jowers Painting | — | (916) 408 2341 | Windows, patio, painters | Lincoln · Placer County | — | — |
| J K Flanagan | J K Flanagan | impallari@gmail.com | (530) 392 9663 | GC, remodel, ADU | Auburn · Placer County | — | — |
| J K Hanson Construction Services | Jesse Alan Hanson | — | (916) 802 7860 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J K Nichols Construction | John Kevin Nichols | — | (530) 613 4138 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J K Wood Construction | John Kruse Wood | — | (530) 448 9649 | GC, remodel, ADU | Carnelian Bay · Placer County | — | — |
| J L C Company | Justin Lewis Chaney | — | (916) 223 6737 | Windows, patio, painters | Newcastle · Placer County | — | — |
| J L Halleib Construction | John Lansing Halleib | — | (530) 269 0405 | GC, remodel, ADU | Auburn · Placer County | — | — |
| J L S Environmental Services INC | Heath Hayes Lesher | — | (916) 660 1525 | GC, remodel, ADU | Loomis · Placer County | — | — |
| J M Customs Construction | Joe Daniel Studebaker | — | (916) 580 8996 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J M Environmental INC | John Carl Leslie Moore | — | (916) 726 0304 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| J M Feuz | J M Feuz | — | (916) 622 6384 | GC, remodel, ADU | Roseville · Placer County | — | — |
| J M G Painting Co | Louis Ernest Castro | — | (415) 740 6099 | Windows, patio, painters | Lincoln · Placer County | — | — |
| J M Hansen Painting | J M Hansen Painting | — | (916) 759 6991 | GC, remodel, ADU | Loomis · Placer County | — | — |
| J M Plumbing | J M Plumbing | — | (916) 412 5571 | Other | Roseville · Placer County | — | — |
| J M R Construction Corp | Ronald Earl Rivard | — | (916) 439 0593 | GC, remodel, ADU | Homewood · Placer County | — | — |
| J M S Construction | Jason Michael Simao | info@jmsconstruction.net | (916) 606 6788 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| J N T Building And Remodeling INC | John Lee Nelson | — | (916) 672 6110 | GC, remodel, ADU | Loomis · Placer County | — | — |
| J P S Construction Co | Joseph Peter Scali | — | (916) 869 5202 | GC, remodel, ADU | Rocklin · Placer County | — | — |