| C E Burke Painting Co | Craig Edward Burke | — | (619) 448 7356 | Windows, patio, painters | Santee · San Diego County | — | — |
| C E Crist INC | Christine Elizabeth Shackelford | — | (619) 449 4596 | GC, remodel, ADU | Lakeside · San Diego County | — | — |
| C E Lemmon Construction | Charles Edward Jr Lemmon | — | (619) 884 3020 | GC, remodel, ADU | Lakeside · San Diego County | — | — |
| C E Pools INC | Michael O'shea West | — | (760) 539 2635 | Pool | San Diego · San Diego County | — | — |
| C E Wilson Corp | Patricia Jean Wilson | — | (619) 464 6721 | GC, remodel, ADU | Spring Valley · San Diego County | — | — |
| C E Wylie Construction Company | Charles Edward Wylie | — | (619) 756 2766 | GC, remodel, ADU | Rancho Santa Fe · San Diego County | — | — |
| C F Builders & Design | C F Builders & Design | — | (619) 971 8395 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| C Fallone Construction | Christopher George Fallone | — | (760) 758 3636 | GC, remodel, ADU | Vista · San Diego County | — | — |
| C G Glazing INC | Carol Lynn Goins | — | (619) 461 0794 | Windows, patio, painters | Spring Valley · San Diego County | — | — |
| C G Ontiveros Construction General Contractor | Carlos Guadalupe Ontiveros | — | (619) 756 2259 | GC, remodel, ADU | Spring Valley · San Diego County | — | — |
| C Granite Countertops | Cesar Alfredo Ocampo | cesarocampo2005@gmail.com | (619) 832 6552 | Other | Ramona · San Diego County | — | — |
| C H Anderson Construction | Christopher Hales Anderson | trent@chaproperties.com | (760) 815 3524 | GC, remodel, ADU | Carlsbad · San Diego County | — | — |
| C H C Refrigeration INC | John Rodger Cramer | mn@tritonair.net | (760) 505 7299 | HVAC | San Marcos · San Diego County | — | — |
| C H Custom Carpentry | C H Custom Carpentry | angelina@burgiostucco.com | (760) 708 8343 | GC, remodel, ADU | Valley Center · San Diego County | — | — |
| C H E Q Construction | Fernando Equihua Chavez | — | (619) 654 3129 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| C H I Builders INC | Richard Wayne Clarke | guy@infinitydesignbuild.com | (760) 458 9207 | GC, remodel, ADU | Vista · San Diego County | — | — |
| C H P T Construction | Javier Jose Luis Zavala | info@chptconstruction.com | (760) 809 4849 | GC, remodel, ADU | Rancho Santa Fe · San Diego County | — | — |
| C H R Construction Work | Ronald Ian Bishop | — | (619) 410 7828 | GC, remodel, ADU | Spring Valley · San Diego County | — | — |
| C H Westgate INC | Charles Haviland Jr Westgate | — | (619) 985 6437 | Other | San Diego · San Diego County | — | — |
| C J Don Electric Incorporated | Carlos Joseph Iii Don | — | (760) 440 0445 | Electricians | Ramona · San Diego County | — | — |
| C J Home Specialists | C J Home Specialists | — | (760) 522 1709 | GC, remodel, ADU | Oceanside · San Diego County | — | — |
| C J Kellum Landscape | C J Kellum Landscape | — | (760) 300 7406 | Windows, patio, painters | Valley Center · San Diego County | — | — |
| C J Larsen - Wallpapering - Painting & Faux Finishing | Chris James Larsen | — | (858) 442 9068 | Windows, patio, painters | San Diego · San Diego County | — | — |
| C J Painting | C J Painting | — | (619) 888 1285 | Windows, patio, painters | San Diego · San Diego County | — | — |
| C J R Construction | Carlos Alberto Sr Ruvalcaba | — | (619) 253 0373 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| C J Wiesner Construction INC | Carl Joseph Wiesner | — | (619) 443 7716 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| C J's Custom Works | C J's Custom Works | — | (760) 712 2797 | GC, remodel, ADU | Vista · San Diego County | — | — |
| C J's Heating & Air Conditioning | William Christopher Justin | — | (760) 803 6081 | HVAC | Valley Center · San Diego County | — | — |
| C K Construction | Craig William Knox | — | (619) 445 7442 | Electricians | La Mesa · San Diego County | — | — |
| C L B Heating And Air | Corey Lyle Butcher | — | (619) 921 9998 | HVAC | El Cajon · San Diego County | — | — |
| C L D Electric | Jerry James Jr Herron | cldelectric@gmail.com | (619) 638 0228 | Electricians | Santee · San Diego County | — | — |
| C L E Builders INC | Rodney George Jr Hadrian | — | (760) 908 3392 | GC, remodel, ADU | Vista · San Diego County | — | — |
| C L P Construction | Dean Joe Pedersen | info@clpconstruction.com | (858) 689 8386 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| C M Builder | C M Builder | — | (760) 532 6592 | GC, remodel, ADU | Fallbrook · San Diego County | — | — |
| C M C Carpet Service | Christopher Alan Mc Veagh | — | (619) 401 1141 | Other | Lakeside · San Diego County | — | — |
| C M C Steel Construction | Curtis Moe Cline | — | (619) 889 3540 | Other | San Diego · San Diego County | — | — |
| C M Firestop INC | Christopher Raymond Winkler | cmfirestop@cmfirestop.com | (858) 278 0296 | Other | San Diego · San Diego County | — | — |
| C M G Granite & Stone INC | Cesar Martin Gordillo-Gordillo | — | (760) 917 4097 | Other | Oceanside · San Diego County | — | — |
| C M L Plumbing | C M L Plumbing | — | (619) 635 2121 | Other | El Cajon · San Diego County | — | — |
| C M P Construction | Paul Martin Iii Pearson | — | (760) 644 1832 | GC, remodel, ADU | San Marcos · San Diego County | — | — |