| Kane Construction | John Nicholas Kane | — | (209) 601 7115 | Other | Stockton · San Joaquin County | — | — |
| Kauffroath Builders | Kauffroath Builders | — | (209) 327 8957 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Kaur Construction | Kaur Mandip | — | (209) 715 8627 | Electricians | Stockton · San Joaquin County | — | — |
| Kazares Construction | Kevin Douglas Kazares | — | (209) 606 7764 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Kb Pool Remodeling | Kevin Epy Buenrostro | — | (925) 409 7465 | Pool | Tracy · San Joaquin County | — | — |
| Kbi INC | Kristina Ann Borges | — | (209) 598 9778 | Electricians | Lodi · San Joaquin County | — | — |
| Kcpetroleum | Gavin Robert Williams | — | (209) 314 7986 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Keefer Construction & Remodeling | Harvey Richard Keefer | — | (209) 570 5801 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Kees Construction | Cable Hogue Kees | — | (916) 521 6187 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Keith Bussman | Keith Bussman | — | (209) 477 3161 | Electricians | Lodi · San Joaquin County | — | — |
| Keith Gross DBA A & A Gross Drilling | A & A Gross Drilling | — | (209) 334 4725 | Other | Woodbridge · San Joaquin County | — | — |
| Keith Gross Water Wells & Pump INC | Keith Anthony Jr Gross | — | (209) 339 4923 | Other | Lockeford · San Joaquin County | — | — |
| Keith Haines Construction | Keith Alan Haines | — | (209) 505 8579 | GC, remodel, ADU | Ripon · San Joaquin County | — | — |
| Keith's Flooring | Keith's Flooring | — | (209) 914 2641 | Other | Stockton · San Joaquin County | — | — |
| Kelley Homes INC | Daniel Edward Kelley | — | (209) 642 3279 | GC, remodel, ADU | Woodbridge · San Joaquin County | — | — |
| Kelly Timmins Corporate Services DBA Kelly Timmins Office | Kelly Joe Timmins | — | (209) 923 3253 | Other | Manteca · San Joaquin County | — | — |
| Kelly's Backflow Services And Installations INC | Joseph Robert Sr Reyes | — | (209) 482 0670 | Other | Manteca · San Joaquin County | — | — |
| Ken Mauch Plumbing | Ken Mauch Plumbing | — | (209) 327 5214 | Other | Lockeford · San Joaquin County | — | — |
| Ken's Air | Ken's Air | — | (209) 922 5284 | HVAC | Acampo · San Joaquin County | — | — |
| Kenetic Construction INC | John Richard Jr Depiazza | — | (209) 263 5033 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Kenith Culis DBA Yard Pros Landscaping | Yard Pros Landscaping | — | (209) 824 1251 | Windows, patio, painters | Manteca · San Joaquin County | — | — |
| Kenny's Home Improvements | Kenny's Home Improvements | — | (209) 914 5252 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Kent's Oil Service DBA Pacific Northwest Oil | Eric Emerson Hicks | — | (209) 463 4762 | Other | Stockton · San Joaquin County | — | — |
| Kerry Langley's Carpet Installation | Kerry Langley's Carpet Installation | — | (209) 602 9267 | Other | Tracy · San Joaquin County | — | — |
| Kevin Alavezos | Kevin Alavezos | — | (209) 679 4341 | Windows, patio, painters | Manteca · San Joaquin County | — | — |
| Kevin Anda Painting | Kevin Anda Painting | — | (209) 599 8361 | Windows, patio, painters | Ripon · San Joaquin County | — | — |
| Kevin Cadle | Kevin Cadle | — | (209) 835 9572 | Windows, patio, painters | Tracy · San Joaquin County | — | — |
| Kevin Gill Plumbing | Kevin Gill Plumbing | — | (209) 401 3821 | Other | Linden · San Joaquin County | — | — |
| Kiger Painting INC | James Neal Jr Kiger | — | (209) 401 1254 | Windows, patio, painters | Stockton · San Joaquin County | — | — |
| King Builders INC | Keith Alexander King | — | (209) 992 1154 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| King Contract Glass | Jeffrey Vincent King | — | (209) 825 2111 | Windows, patio, painters | Manteca · San Joaquin County | — | — |
| King Kong General Demolition INC | Eduardo Gonzalez | — | (510) 693 5957 | Other | Stockton · San Joaquin County | — | — |
| King Painting | King Painting | — | (209) 451 8962 | Windows, patio, painters | Stockton · San Joaquin County | — | — |
| King Rem & Construction | Luke Allen King | — | (209) 836 5552 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Kingdom Drywall INC | Jared William Moe | — | (415) 360 9192 | Other | Lathrop · San Joaquin County | — | — |
| Kirk Northup | Kirk Northup | — | (510) 432 9686 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Kirpa Construction | Singh Ranjit | — | (209) 649 5533 | GC, remodel, ADU | French Camp · San Joaquin County | — | — |
| Kiser Tile | Kiser Tile | — | (209) 993 1299 | Other | Stockton · San Joaquin County | — | — |
| Kitchen Marble And Granite Selodich | Dimayuga Sergio Lorenzo | — | (209) 242 6534 | Other | Stockton · San Joaquin County | — | — |
| Kj's Developer Builder INC | Brian Patrick Messner | — | (916) 541 1113 | GC, remodel, ADU | Lockeford · San Joaquin County | — | — |