| Stockton Refrigerator Repair | Amir Salman | — | (209) 565 0006 | HVAC | Stockton · San Joaquin County | — | — |
| Stockton Surface Concrete Coatings | Cory L Wong | — | (415) 723 1722 | Other | Stockton · San Joaquin County | — | — |
| Stockton Tree Surgery INC | Edward Thomas Hughes | edward@stocktontreesurgery.com | (209) 931 1646 | Tree | Stockton · San Joaquin County | — | — |
| Stratus Construction Company INC | Randolph Halward Pierson | — | (209) 926 3400 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Streamline Plumbing Systems | Nicolas Anthony Gutierrez | — | (209) 479 5926 | Other | Stockton · San Joaquin County | — | — |
| Streamline Renovators | Mark Steven Andres | — | (209) 850 2796 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Strong General Builder | Strong General Builder | — | (209) 568 7768 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Strong Source Construction | Barry Eugene Armstrong | — | (805) 797 3097 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Strong West Concrete Construction INC | Luis Rey Ramos Ulloa | — | (209) 817 2016 | Other | Stockton · San Joaquin County | — | — |
| Stuart's Plumbing | Stuart's Plumbing | — | (209) 969 1252 | Other | Manteca · San Joaquin County | — | — |
| Stucco Master | Stucco Master | — | (209) 810 6686 | Other | Acampo · San Joaquin County | — | — |
| Studio 11 Mural Arts | Studio 11 Mural Arts | — | (209) 923 3856 | Windows, patio, painters | Lathrop · San Joaquin County | — | — |
| Stutz Plumbing | Stutz Plumbing | — | (209) 992 7112 | Other | Tracy · San Joaquin County | — | — |
| Suarez Construction | Aaron Christopher Suarez | — | (209) 568 5205 | GC, remodel, ADU | Escalon · San Joaquin County | — | — |
| Suastegui Builder Construction | Alfredo Bautista Suastegui | — | (209) 670 5748 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Summer Breeze Pool & Spa INC | Antonio Lopez Marquez | — | (209) 329 7933 | Pool | Lodi · San Joaquin County | — | — |
| Summerfield Roofing | Jason Edward Summerfield | — | (209) 471 8292 | Other roofers | Stockton · San Joaquin County | — | — |
| Summit Construction Group INC | Gregory James Georguson | nick@summitconstructiongroup.com | (801) 850-7550 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Summit Painting & Coatings | Summit Painting & Coatings | — | (209) 808 8324 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Summit Restoration & Remodel INC | Shawn Joseph Rueda | — | (209) 808 8324 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Sun Harvest INC | Robert Nathan Maragliano | — | (800) 791 2212 | Tree | Linden · San Joaquin County | — | — |
| Sunrise Building & Design | Sunrise Building & Design | — | (209) 401 0846 | GC, remodel, ADU | Ripon · San Joaquin County | — | — |
| Sunrise Construction & Home Improvement INC | Henry Amilcar Aguilar Gonzalez | — | (650) 281 4221 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Sunrise Sunset Pools & Landscaping LLC | Julio Cesar Mercado | — | (209) 242 3663 | Windows, patio, painters | Acampo · San Joaquin County | — | — |
| Sunsational Sunroom | Sunsational Sunroom | joeherrero@msn.com | (408) 439 4514 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Sunset Fencing And Patio Covers | Sunset Fencing And Patio Covers | — | (209) 832 2144 | Other | Tracy · San Joaquin County | — | — |
| Sunset Hill Construction | Lopez Gerardo | — | (650) 207 6650 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Sunset Signs INC | Shawn Robert Pemberton | — | (209) 601 1046 | Other | Lodi · San Joaquin County | — | — |
| Superdrain INC | Albert Joseph Farris | — | (209) 473 2121 | Other | Stockton · San Joaquin County | — | — |
| Superior Barricades LLC | Brandon Michael Saunders | — | (209) 594 8809 | Other | Escalon · San Joaquin County | — | — |
| Superior Construction | Jake Ton Huynh | — | (916) 716 2691 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Superior Landscaping | Superior Landscaping | info@superiorlandscaping.com | (209) 275 4387 | Windows, patio, painters | Manteca · San Joaquin County | — | — |
| Superior Specialties INC DBA Superior Firestop & Insulation | Joseph Allen Kot Gonzalez | — | (510) 201 9847 | Other | Ripon · San Joaquin County | — | — |
| Svconstruction INC | Scott Michael Valencia | — | (209) 456 0803 | GC, remodel, ADU | Ripon · San Joaquin County | — | — |
| Sweeney Landscape Management | Sweeney Landscape Management | — | (209) 606 6513 | Windows, patio, painters | Ripon · San Joaquin County | — | — |
| Sweet - Crete Construction | Diaz Omar | — | (209) 808 4258 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Sweet Air AC Services INC | Arturo Vazquez | vazquez.art@sweetairacservices.com | (209) 595 9511 | HVAC | Stockton · San Joaquin County | — | — |
| Sweetscapes Lawn Maintenance | Sweetscapes Lawn Maintenance | — | (209) 599 3602 | Windows, patio, painters | Ripon · San Joaquin County | — | — |
| Swenson Construction Co | William Harper Swenson | — | (209) 815 3384 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Swift Lawn And Garden INC | Robert Edward Swift | — | (209) 595 5013 | Windows, patio, painters | Escalon · San Joaquin County | — | — |