| A & A Air Conditioning Heating & Sheet Metal | Lawrence Joaquin Aguilar | — | (530) 273 1301 | HVAC | Grass Valley · Nevada County | — | — |
| Aero Ducks Heating And Air Conditioning | Michael Charles Phillips | — | (530) 919 6959 | HVAC | Truckee · Nevada County | — | — |
| Air Wolf Energy Efficiency Systems | Air Wolf Energy Efficiency Systems | — | (530) 790 0925 | HVAC | Penn Valley · Nevada County | — | — |
| All Phase Heating And Air Conditioning INC | Max Don Bennett | — | (530) 274 9955 | HVAC | Grass Valley · Nevada County | — | — |
| Amell Construction INC | Dennis Albert Amell | — | (925) 260 4196 | HVAC | Washington · Nevada County | — | — |
| Baehr Heating And Air INC | Jason Thomas Baehr | — | (530) 575 0043 | HVAC | Grass Valley · Nevada County | — | — |
| Balance Point Home Performance INC | Daniel Richard Perunko | — | (530) 477 0695 | HVAC | Grass Valley · Nevada County | — | — |
| Brewer Refrigeration Heating And Airconditioning INC | Robert K Jr Brewer | — | (530) 272 6351 | HVAC | Grass Valley · Nevada County | — | — |
| Bryan's Heating & Air Conditioning | Bryan's Heating & Air Conditioning | — | (530) 292 3699 | HVAC | Nevada City · Nevada County | — | — |
| Connolly Heating | Connolly Heating | — | (781) 974 3207 | HVAC | Truckee · Nevada County | — | — |
| Craig Krauss Heating And Hydronics | Craig Krauss Heating And Hydronics | — | (530) 587 6253 | HVAC | Truckee · Nevada County | — | — |
| Cutting Edge Mechanical | Cutting Edge Mechanical | — | (530) 412 3501 | HVAC | Truckee · Nevada County | — | — |
| Dave Root Heating & Air Conditioning | Dave Michael Root | — | (530) 273 6078 | HVAC | Grass Valley · Nevada County | — | — |
| Do HVAC INC | Daniel Weber Oliver | — | (530) 205 3054 | HVAC | Penn Valley · Nevada County | — | — |
| Donner Heating And Air | Donner Heating And Air | — | (530) 414 4959 | HVAC | Truckee · Nevada County | — | — |
| Ferris Heating And Air INC | Brian David Ferris | — | (530) 587 5343 | HVAC | Truckee · Nevada County | — | — |
| Fitting Mechanical | Fitting Mechanical | — | (530) 477 5541 | HVAC | Grass Valley · Nevada County | — | — |
| Foothill Air Systems | Foothill Air Systems | — | (530) 263 0040 | HVAC | Grass Valley · Nevada County | — | — |
| Fuller H V A C | Fuller H V A C | — | (530) 559 0569 | HVAC | Grass Valley · Nevada County | — | — |
| Grass Roots Heating And Air LLC | Alexander Burton Campbell | grassrootsheatingandair@gmail.com | (267) 736 9057 | HVAC | Grass Valley · Nevada County | — | — |
| Grass Valley Air Conditioning INC | Robin Elaine Jones | — | (530) 272 8171 | HVAC | Grass Valley · Nevada County | — | — |
| Heating-cooling Service Co | Glenn David Jones | — | (530) 277 3111 | HVAC | Grass Valley · Nevada County | — | — |
| Inmotion Mechanical INC | Chad James Bogan | — | (530) 210 2275 | HVAC | Truckee · Nevada County | — | — |
| K D Mechanical | K D Mechanical | info@kdmechanical.com | (530) 718 0000 | HVAC | Grass Valley · Nevada County | — | — |
| Leo Smith Heating & Cooling | Leo Smith Heating & Cooling | — | (530) 263 0209 | HVAC | Grass Valley · Nevada County | — | — |
| Lofton Construction And Electric | Philip Michael Ii Lofton | — | (530) 263 7369 | HVAC | Grass Valley · Nevada County | — | — |
| Martis Valley Mechanical INC | Greg Haugen | — | (530) 386 5011 | HVAC | Truckee · Nevada County | — | — |
| Mountain Air Heating And Cooling | Mountain Air Heating And Cooling | — | (530) 888 7894 | HVAC | Grass Valley · Nevada County | — | — |
| Mountain Air Refrigeration | Mountain Air Refrigeration | — | (530) 277 7851 | HVAC | Nevada City · Nevada County | — | — |
| Northern-air HVAC INC | Andrew Tyrone Souza | — | (530) 268 1480 | HVAC | Grass Valley · Nevada County | — | — |
| Omid Heating & Air Conditioning | Alireza Homayouni Afshartabar | — | (530) 270 9092 | HVAC | Penn Valley · Nevada County | — | — |
| Phipps Mechanical | Phipps Mechanical | — | (916) 769 6959 | HVAC | Grass Valley · Nevada County | — | — |
| Piedmont Plumbing And Mechanical | Piedmont Plumbing And Mechanical | — | (530) 265 5025 | HVAC | Nevada City · Nevada County | — | — |
| Precision Combustion INC | Everton Maurice Edgar | interested@domainmarket.com | (510) 453 2208 | HVAC | Grass Valley · Nevada County | — | — |
| Private Climate INC | Denzel Ray Jr Mcdowell | — | (530) 414 1757 | HVAC | Truckee · Nevada County | — | — |
| Pro Agua INC | Richard David Vaughan | — | (530) 587 8402 | HVAC | Truckee · Nevada County | — | — |
| Pro H20 Heating & Plumbing INC | Richard David Vaughan | — | (530) 587 8402 | HVAC | Truckee · Nevada County | — | — |
| Quality Heating & Cooling INC | Craig Richard Wagnecht | — | (530) 210 1813 | HVAC | Nevada City · Nevada County | — | — |
| Rector Plumbing & Radiant Heating | Rector Plumbing & Radiant Heating | — | (530) 205 7521 | HVAC | Chicago Park · Nevada County | — | — |
| Sgv Refrigeration LLC | Scott Mitchell Van Natta | — | (650) 504 7637 | HVAC | Truckee · Nevada County | — | — |