Crawlspaces can cause problems if they are not properly insulated. Some crawlspaces contain water pipes which, under severe temperature extremes, can freeze and/or bust. They may also contain uninsulated heating and air conditioning ducts which can waste costly energy. An uninsulated or partially insulated crawl space can make the floors and temperatures in the living space colder in the winter and warmer in the summer, affecting the comfort of you and your family. Insulating the crawlspace can help prevent this from occurring.