Disclaimer: Offer expires 9/30/2023. 1. Not valid with other offers, or prior purchases. Subject to credit approval. Financing for GreenSky consumer loan program is provided by federally insured, federal and state chartered financial institutions without regards to age, race, color, religion, national origin, gender, or familial status. Savings comparison based on purchase of a single unit at list price. Available only at Renewal by Andersen of Greater Maine.