| Cool Electric | Daniel Steven Foss | — | (530) 444 0502 | Electricians | Cool · El Dorado County | — | — |
| Cool Mechanical Incorporation | Jeremy Edward Santerelli | — | (916) 933 3731 | HVAC | Cameron Park · El Dorado County | — | — |
| Cooper Construction Of California | Martha Ellen Cooper | — | (916) 834 4859 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Cooper Electric | Douglas Wade Cooper | — | (530) 417 0587 | Electricians | Placerville · El Dorado County | — | — |
| Cooper Energy Services INC | Eric Jason Russo | info@cooperenergyservices.com | (530) 295 0200 | Electricians | Placerville · El Dorado County | — | — |
| Corinthian Tile & Stone | Corinthian Tile & Stone | — | (916) 205 5230 | Other | Pollock Pines · El Dorado County | — | — |
| Cornell Construction | Sean Michael Cornell | — | (530) 363 5461 | Electricians | Placerville · El Dorado County | — | — |
| Cornerstone Land Services LLC | Evan Josiah Vaughan | — | (530) 306 4430 | Windows, patio, painters | Somerset · El Dorado County | — | — |
| Cornerstonebuilds4u DBA Cornerstone Builders | Michael Ervin Huckenpoehler | — | (530) 919 0333 | GC, remodel, ADU | Georgetown · El Dorado County | — | — |
| Cory Bays Construction | Cory Michael Bays | — | (916) 812 4329 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Cory's Plumbing | Cory's Plumbing | — | (916) 452 5580 | Other | Placerville · El Dorado County | — | — |
| Cosentino Construction | Gaetano Anthony Cosentino | — | (916) 805 9643 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Costa Fencing INC | Steven James Ii Costa | scosta@costafencing.com | (530) 308 3317 | Other | Garden Valley · El Dorado County | — | — |
| Cotcher Construction Company | Larry Spiros Cotcher | — | (530) 672 0941 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Counselman Construction | Michael George Counselman | — | (530) 333 2989 | GC, remodel, ADU | Georgetown · El Dorado County | — | — |
| Counter Top Craftsmen Granite & Quartz | Joel Daniel Katz | — | (916) 960 7129 | Other | El Dorado · El Dorado County | — | — |
| Countertop Alternatives | Countertop Alternatives | — | (530) 621 0579 | Other | Diamond Springs · El Dorado County | — | — |
| Coupe Automation | Terrence Charles Coupe | sales@coupeautomation.com | (818) 640 5176 | Other | South Lake Tahoe · El Dorado County | — | — |
| Craft Custom Pools LLC | Ryan Coelho | info@craftcustompools.com | (408) 515 2860 | Pool | El Dorado Hills · El Dorado County | — | — |
| Craft Home Design INC | Ronald Wayne| Heckle Ronald Wayne Jr Heckle | — | (916) 505 6411 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Crawford Plumbing Company | Micah Jeffery Crawford | — | (916) 202 6067 | Other | El Dorado Hills · El Dorado County | — | — |
| Craypo Construction | Dennis Neil Crapo | — | (916) 397 7202 | GC, remodel, ADU | Camino · El Dorado County | — | — |
| Creation Construction | Aaron Lee Earleywine | — | (530) 318 4534 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Creative Builders | Robert Matthew Olson | — | (916) 770 7908 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| Creative Construction Company | Donald William Anderson | — | (530) 621 0723 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Creative Eye Design & Build | Susan Jo| Prang Susan Vannatter | susan@creative-eye-design-build.com | (925) 640 3408 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Creative Native Landscaping And Services LLC | Matthew Shane Huntington | — | (559) 760 0009 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| Creative Pro Painting | Creative Pro Painting | — | (530) 306 1597 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Creative Site Services | Andrew Nathan Nelson | — | (530) 417 6141 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Creative Staining Company | Benjamin Edward Hudgens | interested@domainmarket.com | (530) 387 6747 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Creative Vision Construction INC | Jeffrey Evan Merrifield | — | (530) 318 2644 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Creegan Builders | Creegan Builders | — | (530) 308 1371 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Creek Site Builders LLC | Tyler Louis Bila | — | (916) 206 3334 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| Creo Casa Construction INC | Erik Thomas Benson | — | (916) 792 0181 | GC, remodel, ADU | Rescue · El Dorado County | — | — |
| Crewtura INC | Zachary Aaron Sasser | — | (808) 599 0795 | Electricians | El Dorado Hills · El Dorado County | — | — |
| Crist Painting Services INC | Cory Everett Crist | cory@cristpainting.com | (530) 559 4275 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| Crosby Homes | Christopher Beck Crosby | info@crosbyluxuryhomes.com | (916) 223 2322 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Crowton Excavation & Grading | Crowton Excavation & Grading | — | (530) 333 1505 | Other | Garden Valley · El Dorado County | — | — |
| Crystal Basin Construction LLC | Casey Patrick Hayman | — | (530) 206 8080 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Ctr Electrical | David Pavlovich Komarchuk | — | (916) 915 7010 | Electricians | El Dorado Hills · El Dorado County | — | — |