| Double U Enterprises LLC DBA Rg Wydner | Ryan Gleeson Wydner | — | (209) 327 2363 | Other | Valley Springs · Calaveras County | — | — |
| Douglas Mobile Home Service | Wayne Mitchell Douglas | — | (209) 728 8973 | Other | Murphys · Calaveras County | — | — |
| Douglas Morefield LLC | Douglas Basil Morefield | — | (925) 784 9872 | Other | Valley Springs · Calaveras County | — | — |
| Drew's Land Clearing | Andrew Charles Sherman | — | (209) 293 4532 | Other | Mokelumne Hill · Calaveras County | — | — |
| Duane Mast | Duane Mast | — | (209) 400 4396 | Other | San Andreas · Calaveras County | — | — |
| Dunn Construction | James Peter Dunn | — | (209) 768 9763 | GC, remodel, ADU | Valley Springs · Calaveras County | — | — |
| Dyken Framing Construction | Silas Kiwani Dyken | — | (209) 352 0197 | Other | Angels Camp · Calaveras County | — | — |
| Dymond T Construction | Jeffery Scott Taylor | — | (209) 401 5389 | GC, remodel, ADU | Wilseyville · Calaveras County | — | — |
| E P B Construction | Edwin Pierre Bobrycki | — | (209) 817 3965 | GC, remodel, ADU | Mokelumne Hill · Calaveras County | — | — |
| E R Design And Construction | Eric Marion Ruthrauff | — | (209) 304 2234 | GC, remodel, ADU | San Andreas · Calaveras County | — | — |
| Eads Construction | Ira James Eads | — | (209) 401 3772 | GC, remodel, ADU | Copperopolis · Calaveras County | — | — |
| Eads Fire Protection | Eads Fire Protection | — | (209) 401 4037 | Other | Copperopolis · Calaveras County | — | — |
| Eagle Automotive Equipment | Eagle Automotive Equipment | — | (209) 331 0134 | Other | Mountain Ranch · Calaveras County | — | — |
| Eagle Automotive Equipment Iv INC | John Dominic De Angelis | — | (209) 292 1268 | Other | Mountain Ranch · Calaveras County | — | — |
| Ebbetts Pass Plumbing And Heating | Ebbetts Pass Plumbing And Heating | — | (209) 795 2468 | HVAC | Camp Connell · Calaveras County | — | — |
| Ebert Plumbing INC | Matthew Joseph Ebert | — | (209) 405 0577 | Other | Valley Springs · Calaveras County | — | — |
| Eco Fire Sprinklers INC | Bruce Damon Jr Eads | — | (209) 785 5522 | Other | Copperopolis · Calaveras County | — | — |
| El Valle Roofing Vista | El Valle Roofing Vista | — | (760) 277-8461 | Other roofers | Vista · Calaveras County | — | — |
| Eldie Bartlett Construction | Eldie Frank Bartlett | — | (209) 293 3133 | GC, remodel, ADU | Wilseyville · Calaveras County | — | — |
| Electek | Martin P Szymanski | info@electek.ca | (519) 383-0333 | Electricians | Copperopolis · Calaveras County | — | — |
| Element Building Solutions INC | Joseph Lee Mornard | — | (831) 359 0006 | GC, remodel, ADU | Murphys · Calaveras County | — | — |
| Empirical Inspections LLC | Empirical Inspections LLC | — | (530) 545-0625 | Inspectors | Markleeville · Calaveras County | — | — |
| Energy Lane Corp | Jeffery David Lane | — | (209) 912 9267 | Electricians | Wallace · Calaveras County | — | — |
| Ethan Autrey | Ethan Autrey | — | (916) 899 2548 | GC, remodel, ADU | Wallace · Calaveras County | — | — |
| Evergreen Handyman | Evergreen Handyman | — | (209) 265 6780 | GC, remodel, ADU | Arnold · Calaveras County | — | — |
| Fairway Construction | Christopher Michael Oddo | — | (209) 736 4323 | GC, remodel, ADU | Angels Camp · Calaveras County | — | — |
| Farias Landscape | Farias Landscape | — | (209) 559 5260 | Windows, patio, painters | Copperopolis · Calaveras County | — | — |
| Felix Custom Painting | Felix Custom Painting | felixcustompainting@gmail.com | (209) 332 0590 | Windows, patio, painters | Wallace · Calaveras County | — | — |
| Fillmore Construction INC | Kristina Veronica Fillmore | estimating@fcmi.net | (209) 768 6899 | GC, remodel, ADU | Murphys · Calaveras County | — | — |
| Fine Line Construction And Design | Mark Allen Sweeney | — | (209) 810 4124 | GC, remodel, ADU | Vallecito · Calaveras County | — | — |
| Finish Line Design | Finish Line Design | — | (408) 612 2968 | GC, remodel, ADU | Valley Springs · Calaveras County | — | — |
| Fisk Demolition INC | Harold James Fisk | — | (209) 323 8999 | Other | Valley Springs · Calaveras County | — | — |
| Floor - Tec | Floor - Tec | customer@floor-tec.com | (209) 495 7309 | Other | Rail Road Flat · Calaveras County | — | — |
| Floors By Jeff | Floors By Jeff | — | (209) 443 4144 | Other | Wallace · Calaveras County | — | — |
| Foothill Pump Service | Michael Raymond Griswold | — | (209) 754 3855 | Other | San Andreas · Calaveras County | — | — |
| Foothill Sanitary Septic INC | Kevin James Gause | — | (209) 785 6160 | Other | Copperopolis · Calaveras County | — | — |
| Forrest Kline | Forrest Kline | — | (415) 260 3480 | Windows, patio, painters | Murphys · Calaveras County | — | — |
| Forrest Painting | Forrest Painting | — | (209) 293 7919 | Windows, patio, painters | West Point · Calaveras County | — | — |
| Forsyth Home Improvements | Forsyth Home Improvements | — | (209) 770 7912 | GC, remodel, ADU | Arnold · Calaveras County | — | — |
| Fox Security & Communications INC | Randy Gene Fox | — | (650) 631 7297 | Electricians | Arnold · Calaveras County | — | — |