“Very efficient service. Staff are very professional, courteous and patient. No question is too hard for them and they don’t make you feel silly when you feel like you are asking silly or uneducated questions. In fact, they have taught me a lot about the building process. Nav is great at interpreting poorly supplied instructions and plans from other companies (particularly those that supply sheds). Turn around of drawings has been very quick and any requested changes have been no trouble at all. Great service so far.”