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Our HVAC Services
Cooling
At 4C A/C & Heating, we make your comfort our top priority. Don’t leave AC repair to a contractor with subpar reviews…
Heating
At 4C A/C & Heating LLC, we’re Katy’s furnace experts: We offer repair, servicing, and replacement. Our team can repair all…
Air Filter Replacement
The proper air filter replacement can ensure your furnace or AC unit continues to function properly…
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About 4C A/C and Heating: Leading HVAC Company in Katy
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.
We take pride in serving our community, and our name and brand mean a lot to us. Christina’s background is in Human Resources and Health & Safety, and she ensures that day-to-day operations are run legally and safely. She takes great pride in every single person hired on the team and makes sure each individual’s values align with the company’s. Cailyn works for 4C, managing our social media pages and planning community events. When Cambrie isn’t on the softball field, she enjoys running service calls with Chris and climbing in attics.
Reliable Licensed HVAC Experts in Katy, TX
4C A/C & Heating provides licensed HVAC repair, heating, and cooling services in Katy, TX, and the surrounding areas. With years of experience, our skilled technicians deliver reliable solutions for air conditioning, heating, and indoor air quality to keep your home comfortable year-round.
No matter what your individual needs are, we can find a solution that works for you. Our team has carried out installations, repairs, and maintenance for all makes and models of HVAC systems, so we can handle anything when it comes to HVAC.
Top-Rated HVAC Services
At 4C A/C & Heating, our team has years of experience and can make sure you’re getting the highest quality service every time. Our many services include:
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AC Coil Cleaning
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AC Compressor Replacement
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AC Installation
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AC Maintenance
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AC Repair
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Ductless Mini-Split
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Refrigerant Leak Repair
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Thermostat Repair & Installation
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Furnace Installation
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Furnace Repair
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Heating Maintenance
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Heat Pump Installation
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Heat Pump Repair
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Air Filter Replacement
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UV Light Installation
Our Special Offer
Our Service Areas
We’re proud to be a family-owned and operated business here in Katy, TX, serving surrounding areas including:
Just give us a call today to see what we can do for you!
What Your Neighbors Say About Us
Amazing service! Chris and his team are absolutely amazing. They are prompt, thorough, kind, and just all around awesome. I have had many others come and look at our AC issues, and honestly I will never go anywhere else again. Their pricing is great and the work they do is even better…
Brittany S.Satisfied Customer
Highly recommend. Our heat went out during a really cold day and Texans cannot do cold weather! Agent who answered my call was very helpful, transparent, and was able to get us a same day appointment. We had a technician here within 45 minutes of my call. Technician was done…
Bianca P.Satisfied Customer
Saw the truck across the street at a neighbors. Called and Jeremy was awesome. He came assessed the problem, (compresser issue) had the part we needed in his truck and explained that he was able to get our air back in running in no time. Very awesome customer service…
Kimika T.Satisfied Customer
Chris came out to inspect and quite repairs on my HVAC system the day after I called. He was on time and professional. He was able to come back later in the day to handle the actual repairs and had me up and running properly in no time. Highly recommend this company…
Jacob C.Satisfied Customer
I have used this company in the past, they did great work and were extremely professional! I called them a second time for an unrelated issue, the technician informed me that he could not repair that coil because it was out of stock and wouldn’t have one available for at least 6 months!…
Tony G.Satisfied Customer
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Making HVAC Repair Service Easy for You
We want to make our services as accessible as possible for our valued customers. Our maintenance plans make keeping track of HVAC maintenance easy and let you save on tune-ups.
We also provide financing opportunities to help you invest in your home’s HVAC systems without breaking the bank.
