Add Yahoo as a preferred source to see more of our stories on Google. BanksPhotos/Getty Images Poorly sealed windows allow heat to enter your home during the summer and cool drafts during the winter.

Lexie is a former Staff Writer at Forbes Home and has over 6 years of professional experience as a writer and editor in the home improvement space. She's previously worked at sites such as HomeAdvisor ...

Sealing and insulating windows and doors is one of the most cost-effective ways to reduce heat loss during winter. By blocking air leaks, adding insulation and creating barriers between your warm ...

Poorly sealed windows allow heat to enter your home during the summer and cool drafts during the winter. As a result, your HVAC unit works overtime to maintain your desired temperature, leading to ...