Dot N Sons Heating & Air Return to Directory Contact Jason Antonucci Address 448 Colfax Avenue City Grass Valley State CA ZIP Code 95945 Business Phone 1 530 277-4825 Business Fax 1 530 432-6321 CSLB Number https://www2.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=875436 Specialty Air Cond. Contractors, Commercial, Air Cond. Contractors, Residential, Heating & Ventilating, Commercial, Heating & Ventilating, Residential, Heating, Radiant Floor, HVAC Placement, Helicopter