| Air Conditioning And HVAC Solutions Cardiff | Air Conditioning And HVAC Solutions Cardiff | — | (209) 457-3566 | HVAC | Cardiff · Del Norte County | — | — |
| Alga Norte Aquatic Center | Alga Norte Aquatic Center | — | (442) 339-5777 | Pool | Carlsbad · Del Norte County | — | — |
| All Pest Pros | All Pest Pros | — | (888) 745-7065 | Pest, tile roofs | Escondido · Del Norte County | — | — |
| Alvarado Construction | Matthew Thomas Alvarado | — | (707) 951 0180 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Assistance Restoration | Assistance Restoration | — | (858) 923-5713 | Restoration | Carlsbad · Del Norte County | — | — |
| Avalon Door & Window | Custom Doors & Windows For Over 20 Years | Avalon Door & Window | Custom Doors & Windows For Over 20 Years | — | (805) 644-4445 | Windows, patio, painters | Oxnard · Del Norte County | — | — |
| Ave Maria Construction LLC | William Christopher Blakely | — | (707) 460 8414 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Babich Construction | Henry Thomas Jr Babich | — | (707) 465 3267 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Bayon Construction INC | Joshua Luke Bayon | — | (707) 951 0528 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Bayside Excavation & Construction | Johnny Earl Jacobs | — | (707) 218 8188 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Beeman HVAC | Beeman HVAC | — | (560) 589 0357 | HVAC | Crescent City · Del Norte County | — | — |
| Bob Salvatore Construction | James Robert Salvatore | — | (650) 445 5022 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Bommelyn Construction | William Henry Sr Bommelyn | — | (707) 951 1723 | GC, remodel, ADU | Smith River · Del Norte County | — | — |
| Borges Septic | Borges Septic | — | (707) 954 5038 | Other | Smith River · Del Norte County | — | — |
| Brumm Plumbing INC | Patrick James Brumm | — | (707) 954 1906 | Other | Crescent City · Del Norte County | — | — |
| California Construction Company | Ky James Maltbie | — | (707) 464 1899 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Carlsbad HVAC Repair | Carlsbad HVAC Repair | — | (442) 325-3006 | HVAC | Carlsbad · Del Norte County | — | — |
| Cetnar Construction INC | Helen Louise Cetnar | — | (707) 954 8872 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Chimney Kraft | Justin Dale Paul Schrader | buythefire@yahoo.com | (707) 464 4279 | HVAC | Crescent City · Del Norte County | — | — |
| Clean Cut Builders | Clean Cut Builders | — | (707) 460 9300 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Cleanguard Pest Defense | Cleanguard Pest Defense | — | (442) 277-3577 | Pest, tile roofs | Escondido · Del Norte County | — | — |
| Cody Spahn's Construction | Andrea Robin Spahn | — | (530) 227 3526 | Other | Crescent City · Del Norte County | — | — |
| Construction Services | Matthew Cary Sr Williams | — | (707) 834 2136 | GC, remodel, ADU | Klamath · Del Norte County | — | — |
| Craftsman Homes & Woodworking | Craftsman Homes & Woodworking | — | (408) 781 3261 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Creative Tile Works | Creative Tile Works | — | (707) 218 5728 | Other | Gasquet · Del Norte County | — | — |
| Crescent Builders LLC | Gerald Lloyd Bitzer | info@crescent-builders.com | (707) 951 5526 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Crescent Electric | David Allen Restad | — | (707) 464 1716 | Electricians | Crescent City · Del Norte County | — | — |
| Croft Construction | Donald John Croft | — | (707) 487 7540 | GC, remodel, ADU | Smith River · Del Norte County | — | — |
| Curtis E Clewell Construction | Curtis Edward Clewell | — | (707) 954 6974 | GC, remodel, ADU | Smith River · Del Norte County | — | — |
| Custom Mechanical INC | Custom Mechanical INC | — | (760) 229-2794 | HVAC | Escondido · Del Norte County | — | — |
| Dana Allard DBA Castle Rock Countertops & Construction | Dana Ian Allard | — | (707) 465 1836 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Dave Kettlewell Cabinets And Woodworking | Dave Kettlewell Cabinets And Woodworking | — | (707) 458 3206 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| David Mason | David Mason | — | (707) 954 0504 | Other | Crescent City · Del Norte County | — | — |
| Del Mar Property Management | Del Mar Property Management | — | (858) 481-4890 | Property managers | Del Mar · Del Norte County | — | — |
| Del Norte County Agriculture/weights & Measures | Del Norte County Agriculture/weights & Measures | — | (707) 464-0878 | Pest, tile roofs | Crescent City · Del Norte County | — | — |
| Del Norte Senior Center INC | Martha Lee Mcclure | — | (707) 464 3069 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Del Rio Termite And Pest Control | Del Rio Termite And Pest Control | — | (626) 930-8722 | Pest, tile roofs | Duarte · Del Norte County | — | — |
| Don A Bowen Electric | Don Alan Bowen | — | (707) 954 1235 | Electricians | Gasquet · Del Norte County | — | — |
| Donald Hartley Construction | Donald C Hartley | — | (707) 218 7688 | GC, remodel, ADU | Crescent City · Del Norte County | — | — |
| Down To Earth Tree Work LLC | Jacob Scott Leeper | — | (707) 798 7605 | Other | Crescent City · Del Norte County | — | — |