Clear Creek Heat & Air. The company has been around for years in Leon County and is now trying to break into the BCS market. I grew up with the second generation of owners and they are good people. I believe they have a Brazos County special they are currently offering. 979-361-5173
We used Climate Doctors (Climate Masters back then) to replace our furnace/AC unit and add a few new vents. The work was solid and we have had no issues with the system at all.
Just search the dozen or so threads on this subject throughout the board. The one constant you'll see is Marco at Cool Aire. Just call him, you won't be disappointed, nor surprised. Good guy. Quality work. Very professional.