3 Reasons Why You Should Have Your Windows Professionally To get professional results - They have the expertise needed to ensure that you get all of the benefits of new windows. To enjoy the benefits - There are loads of possible benefits of new windows such as energy efficiency, utility cost savings, more interior comfort, more natural light, better view of the outside and reduced fading of furniture. To have peace of mind - Get peace of mind and enjoy the warranty by calling in the pros. Read more.