4C AC & Heating Repair
4C AC & Heating Repair is an HVAC company in Katy, founded by Chris and Christina Rannigan in 2012. It provides air conditioning, heating and indoor air quality services.
Business Highlights
- It is family-owned and operated.
- It lists license TACLB60872E and says it is insured.
- The company says Chris began his HVAC career in 2000 as an installer and service technician.
Service Area
Bear Creek, TX, Brookshire, TX, Cinco Ranch, TX, Cypress, TX, Energy Corridor, TX, Fulshear, TX, Katy, TX, Richmond, TX, Rosenberg, TX, Sealy, TX, Sugar Land, TX and Weston Lakes, TX.
Featured on ProsGrade. 4C AC & Heating Repair is one of 11 HVAC companies ProsGrade lists in Katy, Texas.
12 services listed, including AC coil cleaning, AC compressor replacement and AC installation. Open 7 days a week. Rated 5.0 from 1,004 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How 4C AC & Heating Repair compares with the other 10 HVAC companies on ProsGrade in Katy, using public Google ratings and review counts.
- Ranks in the top 10% of Katy HVAC companies on ProsGrade by Google rating and review volume.
- Rated 5.0 on Google, at or above the 4.9 average of other Katy HVAC companies on ProsGrade.
- Has more Google reviews (1,004) than 9 of the 10 other Katy HVAC companies on ProsGrade.
- One of 11 Katy HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
12 services- AC coil cleaningcoil-cleaning chemicals, power vacuums and compressed air for most projects
- AC compressor replacement
- AC installation
- AC maintenance
- AC repair
- Ductless mini-split
- Refrigerant leak repair
- Thermostat repair and installation
- Furnace installation
- Furnace repair
- Heating maintenance
- Heat pump installation
Reviews
What customers say
Customers praise clear explanations and professional service. One customer describes an on-time installation of two new AC units; another says Jorge carefully assessed and quickly fixed a heating problem after a power surge during a storm. A customer whose AC ran nonstop without cooling says Jack quickly diagnosed and fixed the problem, then recommended maintenance and replacement parts.
Customer Reviews
Ebony Dillon
Matt Smith
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Frequently Asked Questions
Does 4C AC & Heating Repair work on all HVAC makes and models?
Its installation, repair and maintenance work covers all makes and models of HVAC systems.
Does 4C AC & Heating Repair offer financing?
Financing opportunities are available for customers investing in home HVAC systems.
Does 4C AC & Heating Repair handle commercial HVAC work?
It provides commercial HVAC installation, repair and preventative maintenance for businesses.








