The most common ways homeowners finance a remodel: a home equity loan or HELOC (using existing equity, typically the lowest rate), a cash-out refinance, a personal loan (faster, no equity required, higher rate), and contractor-arranged financing partners, which many remodeling businesses now offer directly at the point of sale.
For remodelers, offering even a simple financing partner integration on your quote page can be the difference between a homeowner saying "let me think about it" and booking on the spot - cost is the single biggest reason quotes stall, and financing options address that objection directly.