A renovation of a home involves removal of existing or old features and replacement with completely new ones. Many renovations involve replacing quality items with substandard ones. Few things are made with the same high standards of quality that were applied in the past. The desire to achieve better profits has changed all of that for many of today's products, including home construction products. This isn't to say that some items have not improved. Advances in technology have led to many useful and efficient improvements in many facets of home construction like heating and water systems.