This book gives information regarding importance of repair and maintenance of buildings. The book suggests various types of repairing practices that will be helpful for the building users which when implemented will increase the life of the building. Maintenance is also an important criteria, which when timely done helps in increasing the service life of building and the building users gets a sigh of satisfaction. The NDT methods used here gives information regarding the quality of the elements of structure, which in turn indicates whether repair is needed or maintenance will do the job.