| Lambert's Plumbing Service | Robert Stephen Lambert | — | (760) 223 1682 | Other | Bakersfield · Kern County | — | — |
| Lamond Construction Company | Craig Allan Lamond | — | (661) 889 5178 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Lamont Fence Company | Dennis Wayne Weaver | kweaver@lamontfence.com | (661) 589 5509 | Other | Bakersfield · Kern County | — | — |
| Lance T Down | Lance T Down | — | (661) 433 2797 | GC, remodel, ADU | California City · Kern County | — | — |
| Landco Roofing | Jesus Izarraraz Alejo | — | (661) 633 9630 | Other roofers | Bakersfield · Kern County | — | — |
| Landeros Plumbing | Landeros Plumbing | — | (661) 303 2012 | Other | Bakersfield · Kern County | — | — |
| Landscapes Unlimited | Landscapes Unlimited | — | (661) 754 9604 | Windows, patio, painters | Rosamond · Kern County | — | — |
| Landscaping Manturano | Landscaping Manturano | — | (661) 380 9928 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Landstone Construction LLC | Richard Warren Sergent | — | (661) 885 9406 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Lane Refrigeration | Lane Refrigeration | — | (661) 859 4276 | HVAC | Bakersfield · Kern County | — | — |
| Langston's Landscaping & Gardening | Langston's Landscaping & Gardening | — | (661) 303 2116 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Lapham Construction Incorporated | John Bernard Lapham | — | (760) 812 0021 | GC, remodel, ADU | Lake Isabella · Kern County | — | — |
| Lara's Landscaping Service INC | Herlinda Jacinto De Avalos | — | (661) 871 5902 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Lara's Usa Heating And Air Conditioning & Concrete Construction | Jose De Jesus Lara | — | (661) 563 1696 | HVAC | Bakersfield · Kern County | — | — |
| Larry Bashor Sandblasting And Protective Coating | Lawrence Stanton Bashor | — | (661) 588 4737 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Larry Gene Daniels Jr | Larry Gene Daniels Jr | — | (661) 836 9768 | HVAC | Bakersfield · Kern County | — | — |
| Larry H Warne Construction | Larry H Warne | — | (661) 822 8585 | GC, remodel, ADU | Tehachapi · Kern County | — | — |
| Larry Murphy Painting | Larry Murphy Painting | larrymurphypainting@yahoo.com | (661) 833 2929 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Larry R Clouser | Larry R Clouser | — | (805) 838 2285 | Other | Taft · Kern County | — | — |
| Larsen Well Pump Service | David Carl Larsen | — | (661) 578 3723 | Other | Weldon · Kern County | — | — |
| Laser Perfection Land Leveling INC | Guy Kent Maxwell | — | (661) 978 3175 | Other | Bakersfield · Kern County | — | — |
| Laurel Ag & Water LLC | Curtis Charles Lutje | — | (661) 368 3550 | Electricians | Bakersfield · Kern County | — | — |
| Lawhon Custom Welding | Lawhon Custom Welding | — | (707) 477 1833 | Other | Tehachapi · Kern County | — | — |
| Lb Gonzales INC | Lonnie Brent Gonzales | — | (661) 900 4173 | Other | Bakersfield · Kern County | — | — |
| Lcs Electrical And Industrial Services INC DBA Quantum Industries | Kevin Dean Blankenship | — | (661) 535 8280 | Electricians | Bakersfield · Kern County | — | — |
| Ldd Construction INC DBA Access Controls | Larry Dale Davis | — | (661) 589 9223 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Left Electric LLC | Leon Edward Jr Francies | — | (661) 912 6877 | Electricians | Bakersfield · Kern County | — | — |
| Legacy Home Improvement | Legacy Home Improvement | — | (661) 747 6271 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Legends Glass INC | Alberto Ramirez | — | (661) 864 6385 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Lejeck's Painting Co | Bryan Charles Lejeck | — | (661) 549 1264 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Lemos Martinez Mario | Lemos Martinez Mario | — | (661) 428 1064 | HVAC | Bakersfield · Kern County | — | — |
| Lentz Construction General Engineering Contractor INC DBA Lentz | Patrick Allen Lentz | — | (661) 588 7187 | Other | Bakersfield · Kern County | — | — |
| Leon Brothers LLC | Barry Jonathan Leon | — | (323) 903 1460 | GC, remodel, ADU | Lebec · Kern County | — | — |
| Les Besser Construction | Leslie Virgil Besser | — | (661) 978 9989 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Lesaca Landscape Company INC | Francisco Javier Lesaca | — | (661) 836 0229 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Lester Prefabricated Service | Justin Alan Lester | — | (661) 316 2194 | Other | Bakersfield · Kern County | — | — |
| Level Construction | Humphrey Donald Jr Castellon | — | (818) 296 8080 | GC, remodel, ADU | Taft · Kern County | — | — |
| Lewis & Lynn Incorporated DBA A Safe Pool Enclosures | Jassen Lewis Froehlich | — | (661) 472 1843 | Other | Bakersfield · Kern County | — | — |
| Lewis Electric | Christopher John Lewis | — | (661) 599 0707 | Electricians | Bakersfield · Kern County | — | — |
| Lewis Luther Construction INC | John Lewis Luther | — | (661) 832 7730 | GC, remodel, ADU | Bakersfield · Kern County | — | — |