| Da Legacy Builder | Da Legacy Builder | — | (949) 542 9329 | GC, remodel, ADU | Oceanside · San Diego County | — | — |
| Da Plumbing & Building Services | Edrees A Dalati | — | (858) 248 5820 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Dabbs Custom Builders | Dabbs Custom Builders | — | (619) 572 7790 | GC, remodel, ADU | Alpine · San Diego County | — | — |
| Dabuma Construction INC | Adrian Palacios | — | (619) 403 6718 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Dadicas Granite Countertops | Dadicas Granite Countertops | — | (619) 750 1406 | Other | Spring Valley · San Diego County | — | — |
| Dag Builders INC | Dave Alan Gilliland | — | (760) 434 4485 | GC, remodel, ADU | Carlsbad · San Diego County | — | — |
| Dagan Design & Construction INC | Dagan Jay Koffler | — | (619) 813 2982 | GC, remodel, ADU | Encinitas · San Diego County | — | — |
| Dagan Design & Construction Landscape INC | Dagan Jay Koffler | — | (619) 813 2982 | Windows, patio, painters | Encinitas · San Diego County | — | — |
| Daghlian Grading INC | Michael Samuel Daghlian | — | (760) 728 9337 | Other | Fallbrook · San Diego County | — | — |
| Dago's Landscaping | Dago's Landscaping | micah@micahrich.com | (619) 786 1455 | Windows, patio, painters | National City · San Diego County | — | — |
| Dah Construction Company | Ramon Camacho | jcayala@traycons.com | (619) 992 9094 | GC, remodel, ADU | La Jolla · San Diego County | — | — |
| Dahl Construction | Robert Paul Jr Dahl | — | (760) 468 2976 | GC, remodel, ADU | Fallbrook · San Diego County | — | — |
| Dahl Home Improvement | Dahl Home Improvement | info@dahlhomeimprovement.com | (760) 452 0779 | GC, remodel, ADU | Encinitas · San Diego County | — | — |
| Daisy Drilling | Daisy Drilling | — | (760) 802 4407 | Other | Escondido · San Diego County | — | — |
| Dak Sustainable INC | Daniel Allen Kwittken | — | (858) 997 4686 | Windows, patio, painters | Oceanside · San Diego County | — | — |
| Dakine HVAC | Dakine HVAC | steved@precision-ac.com | (619) 475 4712 | HVAC | Bonita · San Diego County | — | — |
| Dakini Engineering General Contracting | Dana Wallace Ansell | — | (619) 697 9000 | Other | Spring Valley · San Diego County | — | — |
| Dalani Heating And Air Conditioning | Dalani Heating And Air Conditioning | — | (760) 783 9401 | HVAC | Escondido · San Diego County | — | — |
| Dalavai INC | Scott Alexander Alvord | — | (872) 232 0713 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Dale Dueling Construction | Dale Patrick Deuling | — | (760) 468 0351 | GC, remodel, ADU | Fallbrook · San Diego County | — | — |
| Dale F Kluge | Dale F Kluge | aqremodeling2@gmail.com | (619) 971 2059 | GC, remodel, ADU | Spring Valley · San Diego County | — | — |
| Dale Gillum Ii Electric | Dale Richard Ii Gillum | — | (619) 917 7250 | Electricians | Escondido · San Diego County | — | — |
| Dale Harbaugh Electric | Dale Franklin Harbaugh | — | (858) 864 2036 | Electricians | La Jolla · San Diego County | — | — |
| Dale Hinrichs Custom Installations INC | Dale Robert Hinrichs | — | (619) 449 5711 | Other | Alpine · San Diego County | — | — |
| Dale Sampson DBA Allstate Residential | Dale Sampson DBA Allstate Residential | — | (619) 980 4437 | GC, remodel, ADU | Alpine · San Diego County | — | — |
| Dale Wayne Pruitt | Dale Wayne Pruitt | — | (619) 442 2525 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| Dale's Garage Door | Dale's Garage Door | — | (760) 271 9055 | Other | Oceanside · San Diego County | — | — |
| Dale's Plumbing | Dale's Plumbing | — | (760) 310 7072 | Other | Encinitas · San Diego County | — | — |
| Dale-air INC | Dale Henry Jr Malensek | info@daleair.org | (619) 343 3524 | HVAC | La Mesa · San Diego County | — | — |
| Daley Corporation | Jeffrey Robert Daley | — | (619) 390 1418 | Other | Lakeside · San Diego County | — | — |
| Daley Custom Homes | Jeffrey Robert Daley | jeff@daleycustomhomes.com | (858) 216 1775 | GC, remodel, ADU | Del Mar · San Diego County | — | — |
| Dallas Electric | Dallas Carl La Rue | contact@claycoelectric.org | (619) 606 1852 | Electricians | San Diego · San Diego County | — | — |
| Dalley Masonry | Frederick Samuel Dalley | — | (760) 788 0419 | Other | Escondido · San Diego County | — | — |
| Dalton Landscape INC | Avram David Dalton | — | (858) 243 6862 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Dalyn Construction Incorporated | David Lyle Norling | — | (619) 792 0820 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Damarg Pools And Spas | Damarg Pools And Spas | — | (619) 481 8906 | Pool | Escondido · San Diego County | — | — |
| Damian Gulak Construction | Damian Anthony Gulak | — | (619) 840 7385 | GC, remodel, ADU | Valley Center · San Diego County | — | — |
| Damian Helling Construction Co | Damian Joseph Helling | — | (760) 420 6694 | GC, remodel, ADU | Fallbrook · San Diego County | — | — |
| Damien Gautt Construction | Damien Anthony Gautt | — | (619) 228 4304 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Damman's Plumbing | Damman's Plumbing | support@dammansplumbing.com | (619) 504 3745 | Other | El Cajon · San Diego County | — | — |