Business Details
14 Years
experience
Emergency
services
Your Trusted HVAC Partner in Katy, TX
Founded in 2012 by Chris and Christina Rannigan, 4C A/C & Heating is a family-owned HVAC company built on trust, dedication, and community values. Chris began his career in 2000 as an installer and service technician, gaining hands-on experience that inspired him to establish a business centered on honesty and reliability. Christina ensures ethical operations and team alignment with company values through her expertise in human resources and safety. The company specializes in heating, cooling, and indoor air quality services, serving Katy, TX, and surrounding areas with licensed technicians who handle installations, repairs, and maintenance for all HVAC systems.Their commitment to customer satisfaction is reflected in personalized service, transparent communication, and a focus on long-term relationships. Active community involvement, including local sponsorships and event participation, underscores their dedication to the Katy area. With over a decade of experience, 4C A/C & Heating combines technical expertise with family-driven values to deliver dependable solutions for residential comfort needs.
Services
AC Repair
Furnace Installation
Air Filter Replacement
Heat Pump Repair
HVAC Maintenance
Ductless Mini-Split
Refrigerant Leak Repair
UV Light Installation
Heating Maintenance
AC Installation
Details
- Year established: 2012
Highlights and features
- Family-owned since 2012 with hands-on industry experience since 2000
- Licensed technicians trained in all HVAC system brands and models
- Community involvement through local sponsorships and events
- Financing options available for HVAC replacements and upgrades
- 24/7 emergency service for urgent heating and cooling needs
What people say
Prompt and thorough service
Same-day appointments available
Professional and trustworthy technicians
Transparent pricing
Family-focused approach
Services
AC Repair
Our AC repair service addresses cooling system malfunctions, refrigerant leaks, and component failures. Technicians diagnose issues like frozen coils, faulty compressors, and thermostat problems to restore efficient operation. We prioritize same-day solutions for emergency repairs during extreme weather.
Furnace Installation
We provide furnace installations for gas and electric systems, ensuring proper sizing and energy efficiency. Our technicians follow safety protocols while replacing outdated units with modern, high-efficiency models to improve winter comfort and reduce energy costs.
Air Filter Replacement
Regular air filter replacements enhance HVAC performance and indoor air quality. We install compatible filters that capture pollutants like dust, pollen, and pet dander while improving system longevity and reducing energy consumption for homeowners.
Heat Pump Repair
Our heat pump repair service addresses defrost cycle failures, refrigerant issues, and electrical component malfunctions. Technicians optimize system performance for both heating and cooling seasons, ensuring year-round comfort with minimal energy waste.
HVAC Maintenance
Preventive maintenance includes coil cleaning, refrigerant checks, and electrical inspections. Annual tune-ups extend equipment lifespan, maintain manufacturer warranties, and identify potential issues before they escalate into costly breakdowns.
People
Chris Rannigan
Owner/Operator
With HVAC industry experience since 2000, Chris transitioned from technician to business owner to prioritize customer trust. He oversees technical operations and emergency service calls while mentoring technicians.
Christina Rannigan
Operations Manager
Christina manages HR, safety compliance, and daily operations. Her background ensures ethical business practices and team alignment with company values while maintaining regulatory standards.
Cailyn Rannigan
Social Media Coordinator
Cailyn manages digital marketing and community event planning. She represents the family's commitment to local engagement through social outreach and promotional initiatives.
Questions
What HVAC services do you offer?
We provide AC repair, furnace installation, heat pump services, air filter replacements, and preventive maintenance for residential systems.
Do you offer emergency HVAC repairs?
Yes, we provide 24/7 emergency service for urgent heating and cooling issues during extreme weather conditions.
Are your technicians licensed?
All technicians hold valid Texas Department of Licensing and Regulation certifications for HVAC work.
How often should I replace air filters?
Replace standard filters every 90 days, or more frequently with pets, allergies, or heavy system use.
Do you service all HVAC brands?
Our technicians repair and maintain all major residential HVAC brands and models.
Is financing available for HVAC replacements?
Yes, we offer flexible financing options for new system installations and major repairs.
