Did the existing building ownership transfer with the land ownership?

[Alis B.]

We live in Texas. Earlier this year we transferred commercial property out of our (husband and my) names and into a holding company's name. 

The existing  building (dims or other specifics) were not specifically mentioned on the Quit Claim Deed other than "tenements, hereditaments, and appurtenances thereto belonging, or in anywise appertaining, to said premises"

For tax and liability reasons, we want the building to also be property of the holding company, and not just the land it sits on.

How iron clad is a quitclaim deed (with the above general terms yet no specific description, to prove that neither the land or the building are in our personal names anymore?