DDC controls

Air-Ex Air Conditioning Inc. provides HVAC design, construction, installation, retrofit, service and maintenance for commercial and institutional sectors across Southern California, serving since 1982. The company offers DDC controls, building solutions, and customized maintenance plans.

energy managementHVAC installationHVAC maintenanceHVAC repairHVAC retrofitpipingsheet metal fabricationventilation systems

American Building Comfort Services provides HVAC mechanical service and installations in Ventura, Santa Barbara and LA Counties, experienced in the commercial and industrial industry since 1985. The company also has a Government Construction Division serving United States federal government facilities.

building retrofitschilled water system repair and chiller replacementdemolitiondesign-buildelectrical upgradesenergy managementHVAC service and installationplumbingpreventative maintenancesheet metal fabricationstructural repairtenant improvementsunderground gas line installation

Appleton Electric & Solar is a full-service electrical contractor based in Simi Valley, CA, serving residential, commercial, and government clients throughout Ventura County and Southern California. The company is licensed and insured (California Electrical Contractor License #974784), veteran-owned and operated, and has been in business for over 12 years. It also offers HVAC maintenance, DDC controls, security systems, and EV charger installation.

building automationelectrical installationelectrical maintenanceelectrical repairEV charger installationHVAC installationHVAC maintenancelighting installationpanel upgradespre-construction planningprevailing wage compliancerewiringsecurity system installationsolar panel services

Axis Mechanical, Inc. is a commercial mechanical contractor based in San Jose, California, performing complex HVAC projects in Silicon Valley and the San Francisco Bay Area. The company provides HVAC and plumbing installation, system start-up and commissioning, building management systems and controls, and 3D modeling/BIM.

3D modeling / BIMbuilding management systems / controlscoringductwork installationExcavation and backfillHVAC installationplumbingrefrigerant pipingsaw cuttingsystem start-up & commissioning

United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout Northern California. Founded in 2003, it serves general contractors, developers, owners, and property managers in the Bay Area and ranks among the top mechanical contractors in the region.

24/7 emergency serviceboiler serviceEddy current testingenergy optimizationfabricationHVAC design-buildInstallationlarge tonnage chiller servicelaser alignmentplumbingpreventive maintenanceProject Managementrepairretrofitre-tubingvariable frequency drive retrofitsvibration analysis

Comfort Systems USA Shoffner is a mechanical, electrical and plumbing (MEP) contractor headquartered in Knoxville, Tennessee, formed in 2016 when Comfort Systems USA Inc. and ShoffnerKalthoff MES, Inc. joined forces. It provides new and post-construction services including HVAC, plumbing, electrical, refrigeration, and DDC controls, and holds contractor licenses in Tennessee, Virginia, North Carolina, South Carolina, Alabama, Kentucky, and Georgia.

CAD/BIMelectrical constructionfabricationHVACindustrial constructionmechanical constructionmillwrightplumbingrefrigerationsheet metal fabricationwelding