recommended HVAC contractor for systems and ducts in San Antonio?

[Martin W.]

I'm working on a large gut rehab at the moment. It needs a new 5 ton unit downstairs and a new 3 ton unit upstairs, along with a fair amount of replacement and expanded flex ductwork. The plenums and main trunk lines are still in good condition though. I've received some ridiculous bids for this project so far. Was hoping people here could recommend some reasonable HVAC contractors for a job like this?