4C A/C and Heating

4C A/C & Heating is the trusted HVAC company in Katy, TX. From fast HVAC repair to reliable care, we keep you comfortable. Call now to schedule!

Chris and Christina Rannigan founded 4C A/C & Heating in July 2012. The family owned HVAC company was named after the Rannigan family, Chris, Christina, Cailyn, and Cambrie. Chris has been in the industry since 2000, beginning his career as an installer and later working as a service technician before starting the company. He understood how important it is for homeowners to have an honest and trustworthy technician in their home and set out to build a company that homeowners could trust, built on the values his family believes in.