Licensed Service Division

HVAC Maintenance & Service.

Detailed specifications and procurement guidelines for our HVAC Maintenance & Service division. Standardized for California public works compliance.

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HVAC Maintenance & Service

Optimize building climate control, improve indoor air quality, and reduce energy expenditures across your facility portfolio with tailored preventative maintenance contracts.

What's Included

  • Quarterly filter replacement and coil cleaning
  • Chiller and cooling tower maintenance
  • Rooftop unit (RTU) servicing
  • Duct inspection and sealing
  • Emergency system failure response

Reach & Eligibility

Large-scale government buildings, hospitals, and educational institutions where climate control is mission-critical.

Direct Oversight

Delivered exclusively by C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractors under our rigorous quality oversight.

Compliance & Procurement FAQ

How often should I change facility air filters?

We recommend changing commercial filters every 3 months. This keeps the air clean and stops your AC from breaking down.

Do you fix rooftop AC units?

Yes. Our team services large rooftop units (RTUs). We fix motors, fans, and coolant lines to keep your building cool.

Do you offer seasonal HVAC checks?

Yes. We check your heater in the fall and your AC in the spring. This finds problems before the weather gets too hot or cold.