Many a misfortune had befallen on the residents of a house, which is infested with white ants / termites in the walls. Luck will recede. Fortune will flitter away. Wealth will diminish. Fame will fade away. Wife and Children will often fall sick. There will also be frequent bereavements.
A new lease of life and renewed energy could be given to such an affected house, first by locating the source of the white ants/termites and destroying them. Thereafter, an expiatory ceremony (Vasthu Shanti) and other connected worships are performed.