| Absolute Zero H V A C | Peter Michael Miraglia | — | (530) 545 0844 | HVAC | Shingle Springs · El Dorado County | — | — |
| Air Conditioning And HVAC Solutions Arcadia | Air Conditioning And HVAC Solutions Arcadia | — | (626) 662-7150 | HVAC | Arcadia · El Dorado County | — | — |
| Air Craftsmen H V A C INC | Corey David Eaton | — | (530) 313 8388 | HVAC | Placerville · El Dorado County | — | — |
| Ajax Plumbing | Charles Duane Passalacqua | — | (415) 601 6605 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Ak Mechanical INC | Jason Alan Ayule | info@akmechanical.com | (530) 417 2862 | HVAC | Placerville · El Dorado County | — | — |
| Alexander Heating & Air Conditioning | Alexander Heating & Air Conditioning | — | (530) 497 0334 | HVAC | Camino · El Dorado County | — | — |
| All American Mechanical | Brian Patrick Stanton | — | (916) 500 1286 | HVAC | El Dorado Hills · El Dorado County | — | — |
| All Seasons Plumbing | Gary Gene Lefler | interested@domainmarket.com | (530) 577 9039 | HVAC | South Lake Tahoe · El Dorado County | — | — |
| Alpine Heating And Air Conditioning INC | Scott Thomas Barry | — | (530) 677 4223 | HVAC | Shingle Springs · El Dorado County | — | — |
| Alpine Refrigeration Service | Andrew Gary Swasey | — | (530) 577 0288 | HVAC | South Lake Tahoe · El Dorado County | — | — |
| Amc Heating & Air Conditioning/construction | Adam Matthew Corsiglia | — | (916) 215 9273 | HVAC | Cameron Park · El Dorado County | — | — |
| Atc Service INC | Timothy John Mateo | — | (650) 968 1100 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Baker Heating & Cooling | Baker Heating & Cooling | — | (916) 873 2300 | HVAC | Pilot Hill · El Dorado County | — | — |
| Bayview Engineering & Construction Company INC | Bart Eugene Wood | — | (916) 939 8986 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Berryessa Electronics & Mechanical Services | Paul Dennis Quarneri | — | (775) 843 7450 | HVAC | Placerville · El Dorado County | — | — |
| Bluebird Plumbing And Hydronics INC | Andrew Louis Portillo | — | (530) 577 4519 | HVAC | South Lake Tahoe · El Dorado County | — | — |
| Bob's Heating | Bob's Heating | — | (530) 577 5562 | HVAC | South Lake Tahoe · El Dorado County | — | — |
| Bradly's Heating & Air Conditioning | Bradly's Heating & Air Conditioning | — | (916) 591 0903 | HVAC | Diamond Springs · El Dorado County | — | — |
| Brandon Plumbing & Construction | Brian Don Brandon | — | (530) 409 9636 | HVAC | Shingle Springs · El Dorado County | — | — |
| Built HVAC INC | Jake Dean Cruz | — | (916) 990 5958 | HVAC | Shingle Springs · El Dorado County | — | — |
| Cal Air Systems | Trevor Alan Haun | — | (916) 747 4792 | HVAC | Shingle Springs · El Dorado County | — | — |
| California Comfort Systems | California Comfort Systems | — | (916) 342 6372 | HVAC | Placerville · El Dorado County | — | — |
| California Cooling | California Cooling | — | (530) 621 1500 | HVAC | Somerset · El Dorado County | — | — |
| California Energy Services | Roger Gordon Kilby | — | (916) 996 1283 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Capital Aire Systems | Drady Lee Jones | — | (530) 626 0948 | HVAC | Shingle Springs · El Dorado County | — | — |
| Catco Heating & Air Conditioning | Thomas William Rodgers | — | (530) 647 9647 | HVAC | Pollock Pines · El Dorado County | — | — |
| Century H V A C | Century H V A C | — | (916) 548 3278 | HVAC | Shingle Springs · El Dorado County | — | — |
| Christensen Heating And Air Conditioning | Erik Allyn Christensen | — | (916) 618 2495 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Comfort Controls Heating & Air Conditioning | Cecil Edward Jr Sims | — | (530) 642 0987 | HVAC | Diamond Springs · El Dorado County | — | — |
| Comfort Solutions Heating And Air Conditioning INC | John Carmine Buonauro | — | (916) 337 7030 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Cool Mechanical Incorporation | Jeremy Edward Santerelli | — | (916) 933 3731 | HVAC | Cameron Park · El Dorado County | — | — |
| Culinaire Systems INC | Michael David Dean | — | (916) 596 0085 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Culver Commercial HVAC Services | Stephen Blake Culver | — | (530) 363 8290 | HVAC | Shingle Springs · El Dorado County | — | — |
| Daniel Doyle | Daniel Doyle | — | (530) 556 6527 | HVAC | Diamond Springs · El Dorado County | — | — |
| Deal Heating And Air INC | Darrell Douglas Deal | — | (530) 676 7819 | HVAC | Rescue · El Dorado County | — | — |
| Direct Air Mechanical | Direct Air Mechanical | — | (530) 558 0858 | HVAC | Shingle Springs · El Dorado County | — | — |
| Div 15 Tech | Blake Jon Harrison | — | (916) 941 7308 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Done Right Construction | James Donald Grubbs | — | (916) 223 6345 | HVAC | Pilot Hill · El Dorado County | — | — |
| Dorsett Mechanical | Dorsett Mechanical | — | (530) 903 2248 | HVAC | Diamond Springs · El Dorado County | — | — |
| El Dorado HVAC | El Dorado HVAC | info@indiantypefoundry.com | (239) 404-6797 | HVAC | El Dorado · El Dorado County | — | — |