Certainly not. Astrologer Shrijit, one of the famous astrologers in Kolkata offers Vastu correction with directional changes. He believes everything does not require demolition. Rather he suggests changes in directions, placement or replacement of furniture, and alterations of rooms and their uses (among family members) to bring positive CHI (Energy) at home. He applies the same for workplace and commercial Vastu consultation. Demolition is a last resort for him.