Replacing windows in a house costs between $400 and $1,200 per window, depending on the window type, size, and material. Vinyl windows are the most cost-effective, while wood and fiberglass windows are more expensive but offer greater durability and energy efficiency. Installation costs range from $100 to $300 per window, with more complex jobs, such as resizing, adding to the overall price.

The cost of replacing windows in a house varies based on material and window size. Vinyl windows offer affordability, while wood and fiberglass provide superior quality and aesthetics. Energy-efficient windows may have a higher upfront cost but result in long-term energy savings. Installation complexity, such as resizing window openings or making structural changes, can add to the overall cost. Professional installation ensures a tight seal, preventing air leaks and ensuring energy efficiency.