| 5 Star Plumbing Heating & Air Cond | James Ray Mitchell | — | (831) 722 8300 | HVAC | Los Banos · Merced County | — | — |
| A2z Affordable Air Services | Jesus J Zepeda | — | (408) 420 2419 | HVAC | Los Banos · Merced County | — | — |
| Ace Air INC | Thomas Phillip Truax | — | (209) 722 2200 | HVAC | Merced · Merced County | — | — |
| Advanced Heating And Air Contractors | Luis Miguel Soto | — | (209) 358 7921 | HVAC | Atwater · Merced County | — | — |
| Air - Eaze Heating & Air - Condition | Milton Mario Morales | — | (408) 605 0364 | HVAC | Merced · Merced County | — | — |
| Air Quality HVAC Heating & Cooling | Munoz Gerardo | — | (209) 421 1853 | HVAC | Atwater · Merced County | — | — |
| Air Tactics | Air Tactics | — | (209) 720 8151 | HVAC | Merced · Merced County | — | — |
| All A C Service | Jose Luis Cabanas-maldonado | — | (209) 777 5651 | HVAC | Livingston · Merced County | — | — |
| All American Plumbing Heating & Air INC | Lamont Jacob Goldstein | — | (209) 826 7400 | HVAC | Los Banos · Merced County | — | — |
| All Seasons Heating & A/c | All Seasons Heating & A/c | — | (209) 357 1180 | HVAC | Atwater · Merced County | — | — |
| American Comfort Heating & Air Conditioning | Antonio Jr Baria | — | (209) 658 9648 | HVAC | Atwater · Merced County | — | — |
| Angel's Construction INC | Miguel Angel Mendiola | — | (408) 592 6557 | HVAC | Los Banos · Merced County | — | — |
| Applegate Construction | Cristobal Jr Leon | — | (209) 676 0552 | HVAC | Atwater · Merced County | — | — |
| Arc Electrical Services | Mario Arturo Ray Lopez | — | (408) 722 5759 | HVAC | Los Banos · Merced County | — | — |
| Arms Air Conditioning & Heating INC | Shelly Duane Jr Haase | — | (209) 357 2994 | HVAC | Atwater · Merced County | — | — |
| Arms Air Conditioning And Heating | Arms Air Conditioning And Heating | — | (209) 357-8199 | HVAC | City Of Atwater · Merced County | — | — |
| Best Choice Heating & Air INC | Steven Rigo Vazquez | — | (209) 676 7670 | HVAC | Livingston · Merced County | — | — |
| Best Results Heating & Air | Best Results Heating & Air | — | (209) 489 5714 | HVAC | Merced · Merced County | — | — |
| Blaine Heating And Air Conditioning | Londa Anne Blaine | — | (209) 723 0062 | HVAC | Merced · Merced County | — | — |
| Bob's Refrigeration | Bob's Refrigeration | — | (209) 722-6312 | HVAC | Merced · Merced County | — | — |
| Bp & Sons Mechanical | Ponce Juarez Benjamin | — | (408) 337 7418 | HVAC | Los Banos · Merced County | — | — |
| Bright Ideas Construction | James Ellis Call | — | (209) 273 0900 | HVAC | Merced · Merced County | — | — |
| C N R Heating And Air Conditioning | Maravilla Carlos | — | (209) 631 4664 | HVAC | Atwater · Merced County | — | — |
| California Comfort | California Comfort | — | (209) 261 3361 | HVAC | Merced · Merced County | — | — |
| Calor Air HVAC | Calor Air HVAC | — | (408) 504 4627 | HVAC | Merced · Merced County | — | — |
| Carlos & Son HVAC INC | Carlos Alberto Aguirre Rosales | — | (408) 592 8819 | HVAC | Los Banos · Merced County | — | — |
| Carlos Baez | Carlos Baez | — | (650) 222 1571 | HVAC | Atwater · Merced County | — | — |
| Cen - Cal Air Incorporated | Trino Ramirez | — | (209) 826 8058 | HVAC | Los Banos · Merced County | — | — |
| Central Valley Air Conditioning | Steven Cecilio Silva | — | (209) 564 2497 | HVAC | Atwater · Merced County | — | — |
| Central Valley HVAC Systems | Central Valley HVAC Systems | — | (209) 356 4797 | HVAC | Merced · Merced County | — | — |
| Chabi's Air | Chabi's Air | — | (209) 259-0751 | HVAC | Merced · Merced County | — | — |
| Comfort Zone | Comfort Zone | — | (209) 564 1680 | HVAC | Atwater · Merced County | — | — |
| Conley Heating And Air INC | Jerrid Anthony Conley | — | (209) 737 6095 | HVAC | Los Banos · Merced County | — | — |
| Coolflow Solutions Heating And Cooling | Armando Espinoza | — | (831) 666 2238 | HVAC | Los Banos · Merced County | — | — |
| Cosmic Comfort | Benjamin James Giesbrecht | ben@cosmiccomfort.com | (209) 222 3161 | HVAC | Atwater · Merced County | — | — |
| Cosmic Comfort Electrical & HVAC | Cosmic Comfort Electrical & HVAC | ben@cosmiccomfort.com | (209) 203-0156 | HVAC | Merced · Merced County | — | — |
| D M C Compressor Services INC | Danny Lee Mc Donough | — | (209) 216 8734 | HVAC | Stevinson · Merced County | — | — |
| D/m Heating & Air INC | Manuel Fuentes Castro | — | (209) 563 9272 | HVAC | Delhi · Merced County | — | — |
| Daguerre Construction | Brian Gene Daguerre | — | (209) 777 4306 | HVAC | Los Banos · Merced County | — | — |
| Dani's Heating And Air Conditioning INC | Hurtado Arroyo Daniel | — | (209) 580 9111 | HVAC | Winton · Merced County | — | — |