A Pella replacement window typically costs between $550 and $2,500 installed, with basic vinyl models like the Encompass or 150 Series starting around $300 to $400 per window. Mid-range options, such as the 250 Series, average $450 to $1,350 installed.
Premium wood or fiberglass lines, like Architect or Reserve, can run $1,300 to $3,500 or more per window. Installation labor typically adds $100 to $800 per window, depending on complexity. Factors affecting total cost include frame material, glass upgrades, window size, and whether it’s a simple retrofit or a full-frame replacement.
Getting a local quote is the best way to pin down exact pricing for your project.