Contact the HVAC manufacture i.e. Goodman, carrier...ect also and notify them to iniaite a warraty log and ask them for assistance. If you have a NEW HOME book from the builder it should list the HVAC ... read more
Mark, the answer depends on the topo ie the slope and terrain. Consult a local structual engineer..
proper drainage away, footers, rock, filter cloth, french drainect ect ( water is a hydrolic tool)
T ... read more