| Liberty Bell Alarm Company INC | Mark Adam Buzzard | — | (916) 386 9698 | Electricians | Auburn · Placer County | — | — |
| Liberty Fire Protection | Liberty Fire Protection | — | (916) 701 4034 | Electricians | Auburn · Placer County | — | — |
| Liberty Solutions | Liberty Solutions | — | (916) 660 6706 | Other | Rocklin · Placer County | — | — |
| Life Time Exteriors INC | Michael Craig Ellis | interested@domainmarket.com | (916) 764 2605 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Lifetime Construction Group | Valeriy Mikhaylovich Demchuk | — | (916) 813 7137 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Lifetime Property Management | Lifetime Property Management | — | (916) 755-6404 | Property managers | Roseville · Placer County | — | — |
| Light Your Fire | Light Your Fire | — | (530) 583 9223 | GC, remodel, ADU | Tahoe City · Placer County | — | — |
| Lightspeed Services INC | Peter Andrew Fleury | — | (530) 367 5493 | Other | Foresthill · Placer County | — | — |
| Lillis Construction INC | Daniel Paul Lillis | — | (530) 320 7790 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Lilly General Contracting INC | Justin Andrew Lilly | — | (916) 270 3128 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| Limitless Creationz Landscape | Limitless Creationz Landscape | — | (916) 871 2757 | Windows, patio, painters | Applegate · Placer County | — | — |
| Linck's Plumbing | Linck's Plumbing | impallari@gmail.com | (916) 315 1905 | Other | Rocklin · Placer County | — | — |
| Lincoln Glass | Lincoln Glass | — | (805) 704 5955 | Windows, patio, painters | Lincoln · Placer County | — | — |
| Lincoln Hills Construction | Marc Jason Boisvert | marc@lincolnhillsconstruction.com | (916) 300 3226 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Lincoln Tile Company | Jesse C Evans | — | (916) 462 7763 | Other | Rocklin · Placer County | — | — |
| Lincoln's Commercial Flooring INC | Jason Michael Lorenzo | — | (916) 213 1765 | Other | Lincoln · Placer County | — | — |
| Linkey & Sons Construction INC | Justin Ryan Linkey | — | (530) 308 5844 | GC, remodel, ADU | Tahoe City · Placer County | — | — |
| Lisac Kitchen And Bathrooms INC | Stanko William Lisac | — | (916) 652 2600 | GC, remodel, ADU | Loomis · Placer County | — | — |
| Lissa German | Lissa German | — | (530) 414 4628 | Windows, patio, painters | Tahoe City · Placer County | — | — |
| Litz's Construction INC | Victor L Kalenyuk | — | (916) 532 4629 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Lj Floors LLC | Paul David Lambertson | — | (916) 742 3742 | Other | Lincoln · Placer County | — | — |
| Lobo Services Ltd | Juan Miguel Millan | — | (916) 660 9909 | GC, remodel, ADU | Loomis · Placer County | — | — |
| Local Plumbing & Rooter Services | Justin Robert Duarte | — | (530) 745 4140 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Locken Enterprises | Marland Enoch Locken | — | (916) 847 1302 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Loden Construction | Timothy John Loden | — | (916) 664 2727 | GC, remodel, ADU | Newcastle · Placer County | — | — |
| Logan Roofing | Lawrence Dennis Logan | — | (530) 637 4555 | Other roofers | Weimar · Placer County | — | — |
| Lomeli's Landscape LLC | Lawrence Nicholas Lomeli | — | (916) 500 0540 | Windows, patio, painters | Roseville · Placer County | — | — |
| Lone Pine Landscapes | Lone Pine Landscapes | tahoelonepinelandscapes@gmail.com | (510) 499 6584 | Windows, patio, painters | Tahoe City · Placer County | — | — |
| Long's Construction Co | Yong Sheng Long | — | (916) 335 9555 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Longo Incorporated | Daniel Timothy Longo | — | (530) 581 4538 | Other | Tahoe City · Placer County | — | — |
| Longo Plumbing LLC | Patrick J Longo | — | (916) 860 4370 | Other | Rocklin · Placer County | — | — |
| Lookout Construction | Juan Jose Garcia | — | (775) 291 4587 | GC, remodel, ADU | Kings Beach · Placer County | — | — |
| Loomis Basin Builders INC | Daniel Joseph Cotton | loomisbasinbuildersinc@gmail.com | (916) 412 3794 | GC, remodel, ADU | Foresthill · Placer County | — | — |
| Loomis Restore Corporation | Anh Nhat Le | — | (916) 821 1444 | GC, remodel, ADU | Loomis · Placer County | — | — |
| Loomis Window & Glass | Loomis Window & Glass | — | (916) 257 5496 | Windows, patio, painters | Loomis · Placer County | — | — |
| Lopes Restoration DBA Lopes Remediation | Russell Franklin Lopes | — | (530) 848 1471 | Restoration | Lincoln · Placer County | — | — |
| Lopez Construction & Remodel INC | Sanchez Martin Lopez | — | (916) 719 3388 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Lorang Brothers Construction INC | Charles William Lorang | — | (530) 346 8150 | Other | Colfax · Placer County | — | — |
| Lords Roofing Company | Vance Eugene Lords | — | (916) 871 2165 | Other roofers | Roseville · Placer County | — | — |
| Lotus Designs | Lotus Designs | — | (916) 705 0031 | Windows, patio, painters | Lincoln · Placer County | — | — |