At 4C A/C & Heating, our priority is serving your residential or commercial air conditioning & heating needs.


As a Customer Care Dealer and certified dealer for American Standard Heating & Air Conditioning and other nationally recognized brands of heating and cooling equipment, we offer the latest technology available. We specialize in new and replacement systems, as well as the maintenance and service of your existing heating and cooling systems. If your system is in need of replacement, we will work with you to design the most efficient and reliable system possible that fits within your budget. Owner, Chris Rannigan, personally stands behind all of his work with his personal Satisfaction Guarantee.


4C A/C & Heating sells installs and services all air conditioning systems, gas and electric furnaces, thermostats, heat pump systems, electronic and high-efficiency filtration air cleaners.  4C A/C & Heating believes in putting the customer first.


Our goal and commitment is your comfort and peace of mind in your home and/or business.


Thank you for taking the time to consider 4C A/C & Heating.


Founder and Owner of 4C A/C & Heating, Chris Rannigan, was born and raised in Dallas, Texas.  Chris has over 16 years of experience in the HVAC industry and still loves learning about new technology every chance he gets.  After moving to Katy in 2004, Chris worked for an A/C company in Houston and realized how big of an industry air conditioning is in the Houston area, and also how difficult it can be for homeowners to find honest and trustworthy service.  Soon after getting married and starting a family, Chris made the decision to start his own A/C & heating company based on the values he felt are most important, but are hard to find these days in a service company.

Honesty and Integrity

© 2017 4C A/C & Heating, LLC.