| Lash's Glass | Michael Allyn Lash | — | (530) 894 6446 | Windows, patio, painters | Chico · Butte County | — | — |
| Lassen Legacy Company LLC | Lance Gene Gilpin | — | (530) 307 0391 | GC, remodel, ADU | Chico · Butte County | — | — |
| Laurie Norton Construction | Norton Laurie | — | (530) 521 0211 | GC, remodel, ADU | Chico · Butte County | — | — |
| Lawler Electric | James Gregory Lawler | jlawlerelectric@gmail.com | (530) 588 2433 | Electricians | Chico · Butte County | — | — |
| Lawns R Us Landscaping | George Mike Robbins | — | (530) 624 1098 | Windows, patio, painters | Chico · Butte County | — | — |
| Layman & Son Construction | Gary Darr Layman | — | (530) 518 1237 | GC, remodel, ADU | Chico · Butte County | — | — |
| Lazard's Green Construction | Trandan Mitchell All Lazard | — | (530) 828 2007 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Leaf Engineering | Leaf Engineering | — | (530) 218 8404 | Other | Chico · Butte County | — | — |
| Leatherbury Landscaping | Leatherbury Landscaping | — | (530) 693 9575 | Windows, patio, painters | Chico · Butte County | — | — |
| Leavell's Custom Painting | Leavell's Custom Painting | — | (530) 514 9635 | Windows, patio, painters | Chico · Butte County | — | — |
| Lee Best Construction Services | Christopher Jay Lee | — | (530) 353 7804 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Leen Construction | Casey Christopher Leen | — | (530) 809 0848 | GC, remodel, ADU | Chico · Butte County | — | — |
| Leete INC | Timothy Paul Leete | — | (530) 893 3774 | GC, remodel, ADU | Chico · Butte County | — | — |
| Legacy Construction | Michael Allen Moe | — | (530) 514 0201 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Leiro Electric Company | Armand Einar Leiro | — | (408) 410 9563 | Electricians | Chico · Butte County | — | — |
| Lennie Wood Floor Covering | Lennie Wood Floor Covering | — | (530) 520 3613 | Other | Chico · Butte County | — | — |
| Leonard's Landscape Management Services | Kristopher Boyd Leonard | — | (530) 680 8430 | Windows, patio, painters | Chico · Butte County | — | — |
| Lewallen Construction | Joshua Paul Lewallen | — | (530) 693 8178 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Lifescapes LLC | Kenneth Edward Chase | — | (530) 894 5433 | Windows, patio, painters | Chico · Butte County | — | — |
| Lighthouse Electric | Jordan Dan Reed | — | (530) 343 5349 | Electricians | Chico · Butte County | — | — |
| Lighthouse Electric Company | Thomas-michael Austin Wilson | — | (530) 715 7971 | Electricians | Chico · Butte County | — | — |
| Lil Dan's Woodworking | Lil Dan's Woodworking | — | (530) 592 9016 | Other | Chico · Butte County | — | — |
| Lima Tile | Lima Tile | — | (408) 661 4858 | Other | Oroville · Butte County | — | — |
| Lind Elite Countertops | Lind Elite Countertops | — | (530) 370 1895 | Other | Oroville · Butte County | — | — |
| Linda A Sheppard | Linda A Sheppard | — | (530) 342 3055 | Windows, patio, painters | Chico · Butte County | — | — |
| Lineage Construction | David Allan Rindlisbacher | — | (530) 403 0986 | Other roofers | Oroville · Butte County | — | — |
| Lino's Drywall Repair | Lino's Drywall Repair | — | (530) 990 0127 | Windows, patio, painters | Oroville · Butte County | — | — |
| Liquid Color Painting | Liquid Color Painting | hugom4019@gmail.com | (530) 282 8136 | Windows, patio, painters | Oroville · Butte County | — | — |
| Livermore's Tile And Granite | Livermore's Tile And Granite | — | (530) 990 9029 | Other | Oroville · Butte County | — | — |
| Ljm Construction | Langelo Jay Allen Mayer | — | (530) 354 5294 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Ljw Painting | Ljw Painting | — | (530) 519 0527 | Windows, patio, painters | Durham · Butte County | — | — |
| Loewen Construction | Robert Lee Loewen | — | (530) 680 3545 | GC, remodel, ADU | Chico · Butte County | — | — |
| Long's Peak Construction INC | Jordan Kyle Roberts | longspeakconstructioninc@gmail.com | (530) 521 3771 | GC, remodel, ADU | Chico · Butte County | — | — |
| Lord's Light Logging & Tree Service | David Martin Ives | — | (530) 514 1563 | Tree | Chico · Butte County | — | — |
| Lotus Landscaping | Lotus Landscaping | — | (530) 343 5442 | Windows, patio, painters | Chico · Butte County | — | — |
| Louis Wallace Construction | Louis Winfred Jr Wallace | — | (530) 680 8255 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Lowe's Tile And Granite | Lowe's Tile And Granite | — | (530) 520 7488 | Other | Chico · Butte County | — | — |
| Lucas G Messenger | Lucas G Messenger | — | (530) 521 1865 | GC, remodel, ADU | Chico · Butte County | — | — |
| Lucky Linford's Construction And Property Management | Wade Lennon Linford | — | (530) 375 0400 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Lugenbeel Mechanical Services | Paul Joseph Lugenbeel | — | (530) 343 6966 | HVAC | Chico · Butte County | — | — |