Business Details
14 Years
experience
Emergency
services
Your Trusted HVAC Experts 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. With over two decades of combined industry experience, our team delivers licensed HVAC repair, installation, and maintenance services across Katy, TX, and surrounding areas. We prioritize customer satisfaction by treating every client like family, ensuring personalized solutions and transparent communication. Our technicians are trained to handle all makes and models of HVAC systems, offering emergency services, financing options, and preventive maintenance plans.Christina oversees ethical operations and team integrity, while Chris leverages his technical expertise to ensure reliable service delivery. We actively support local initiatives, reflecting our commitment to the Katy community. Our core values of integrity, family-focused care, and community involvement guide every interaction, making us a trusted partner for residential HVAC needs.
Services
AC Repair
Furnace Installation
Air Filter Replacement
Heat Pump Repair
Ductless Mini-Split
Refrigerant Leak Repair
HVAC Maintenance
AC Installation
Furnace Repair
UV Light Installation
Details
- Year established: 2012
Highlights and features
- Family-owned business with 12+ years of local HVAC expertise
- 24/7 emergency repair services available
- Financing options for HVAC replacements and upgrades
- Community-focused team with transparent pricing
- Technicians trained on all major HVAC system brands
What people say
Prompt, thorough, kind
Same day appointment
Awesome customer service
Highly recommend
Great pricing
Services
AC Repair
Our licensed technicians provide prompt AC repair services for all system types, addressing refrigerant leaks, compressor issues, and electrical malfunctions. We diagnose problems efficiently and use high-quality parts for lasting repairs. With 12 years of local experience, we ensure your cooling system operates at peak efficiency during Texas summers.
Furnace Installation
We offer professional furnace installation for gas and electric systems, ensuring proper sizing and energy-efficient performance. Our team handles permits, old unit removal, and system testing. With financing options available, we make upgrading your heating system affordable and stress-free for Katy homeowners.
Air Filter Replacement
Regular air filter replacement improves HVAC efficiency and indoor air quality by capturing pollutants. Our technicians recommend filter types based on your system and household needs, with service plans available for seasonal replacements to maintain optimal system performance.
Heat Pump Repair
We diagnose and repair heat pump issues including thermostat malfunctions, refrigerant leaks, and defrost cycle failures. Our technicians service both heating and cooling modes, ensuring year-round comfort with prompt diagnostics and repair solutions for residential heat pump systems.
HVAC Maintenance
Our comprehensive maintenance plans include system inspections, coil cleaning, refrigerant checks, and electrical component testing. Annual tune-ups extend equipment lifespan, reduce energy bills, and prevent unexpected breakdowns through proactive care for both heating and cooling systems.
People
Chris Rannigan
Owner/Operator
With 22+ years in HVAC, Chris founded 4C A/C & Heating in 2012 after starting as an installer. He oversees technical operations and emergency service calls, ensuring hands-on quality control.
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 customer service standards.
Questions
What HVAC services do you offer in Katy, TX?
We provide AC repair, furnace installation, heat pump services, air filter replacements, ductless mini-split systems, and refrigerant leak repairs.
Do you offer emergency HVAC repair services?
Yes, we provide 24/7 emergency HVAC repair services for urgent cooling and heating system failures.
How often should I replace my HVAC air filter?
We recommend replacing HVAC air filters every 60-90 days for optimal system performance and indoor air quality.
Do you service all HVAC system brands?
Yes, our technicians are trained to service and repair all major HVAC system brands and models.
What financing options are available for HVAC replacements?
We offer flexible financing plans to help homeowners invest in new HVAC systems without upfront costs.
How can I schedule HVAC maintenance?
Schedule HVAC maintenance through our online booking system or by calling 281-505-1545 for same-day or next-day service.
