If you're considering building a sunroom yourself, you are probably aware that there are sunroom kits you can buy to create your sunroom. Except it's not really your sunroom. You can only build the sunroom the kit is designed for, which means any customization that a professional installer might be able to provide goes out the window. When you hire a professional, you can tell them exactly what you want and use their expertise to figure out how to design a sunroom with the features and layout you and your family want.