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Your Trusted HVAC Partner in Fullerton
KNC Air Control has been installing and maintaining heating, ventilation, air conditioning, and refrigeration equipment for commercial and residential clients across Southern California for over two decades. Our team of highly trained technicians prioritizes professionalism, integrity, and quality workmanship to deliver reliable service and certified high-quality installations. We specialize in retrofitting older buildings with modern systems and handling new construction projects from the ground up.

Our commitment to reducing costs allows us to offer reasonable pricing while maintaining exceptional service standards. With a focus on exceeding customer expectations, we provide prompt, accurate service and stand by all our work to ensure complete client satisfaction.
Services
HVAC Installation Commercial Refrigeration Air Duct Cleaning Furnace Repair Walk-in Cooler Installation Indoor Air Quality HVAC Maintenance Thermostat Services Attic Insulation Air Balancing
Highlights and features
  • We have over 20 years of experience in HVAC and refrigeration services.
  • Our technicians are certified in heating, ventilation, and air conditioning repair.
  • We offer energy-efficient solutions with up to 30% efficiency savings.
  • We provide full-service installations for new and retrofit projects.
  • We guarantee certified quality and stand by all our work.
What people say
Reliable and honest company Completed jobs promptly Left worksite clean Fixed recurring issues High quality service
Services
HVAC Installation
We install complete heating, ventilation, and air conditioning systems for new constructions and retrofit projects. Our team ensures energy-efficient setups that meet building codes and client needs. Certified technicians handle all installations to guarantee long-term reliability and performance.
Commercial Refrigeration
Specializing in commercial refrigeration systems, we provide fabrication, installation, and maintenance for walk-in coolers and freezers. Our solutions ensure peak performance and compliance with industry standards. We address repair needs promptly to minimize business disruptions.
Air Duct Cleaning
Our air duct cleaning services improve indoor air quality by removing contaminants and debris. This service enhances HVAC efficiency and extends system lifespan. We use advanced tools to ensure thorough cleaning without damaging existing infrastructure.
Furnace Repair
We diagnose and repair furnace issues to restore safe, efficient heating operations. Our technicians handle all makes and models with precision. Regular maintenance reduces breakdowns and optimizes energy consumption for residential and commercial clients.
Indoor Air Quality
We enhance indoor air quality through air scrubbers, UV germicidal lights, and ventilation upgrades. These solutions reduce allergens and pollutants for healthier living and working environments. Our assessments identify specific needs to tailor effective air purification strategies.
Questions
What HVAC services do you offer?
We provide installation, repair, and maintenance for residential and commercial HVAC systems, including air conditioning, furnaces, and indoor air quality solutions.
Do you service commercial refrigeration units?
Yes, we specialize in commercial refrigeration systems, including walk-in coolers/freezers, equipment sales, and installation for new or retrofit projects.
Are your technicians certified?
All our technicians are certified in HVAC and refrigeration repair, ensuring expert service for all heating, cooling, and ventilation needs.
What areas do you serve?
We serve residential and commercial clients throughout Southern California, with our main office located in Fullerton.
Do you offer emergency HVAC services?
We provide standard service during business hours but do not currently offer after-hours emergency HVAC repairs.
Can you improve energy efficiency?
Yes, our modern HVAC systems can improve energy efficiency by up to 30% for spaces up to 20,000 square feet.