How Much Do Pella Windows Cost. Pella window prices vary based upon the material type, style, level of energy efficiency and finish options. For example, wood windows are going to cost more than vinyl windows. On average, plan on spending about $600 to $1,000 for each Pella window, including the cost of installation.Individual windows begin at around $300 each and run upwards of $2,500.he price of Andersen windows also varies based on the type, style, level of energy efficiency and finish options. On average, plan on spending about $300 to $1,000 for each Andersen window, including the cost of installation.