talk to the guy who sold you the house he has the upgrade sets you need.
Same way how it was handled in oblivion.
Thanks, but actually in Oblivion you don't get the upgrades from the person you buy the house from. You'd buy upgrades from one of the local merchants after you got the home from someone in the local lord's castle.
Who do you buy the house from? I don't care about spoilers just tell me.
In Whiterun it's the Jarl's assistant. Can't remember his name. In Dragons Reach.
[Edited by NocturnX, 11/12/2011 10:09:01 AM]