Cost To Refinish A Hardwood Floor can vary greatly. Use this calculator to estimate the cost for your home in your zip code..The average cost to refinish hardwood floors is $ to $, square feet the average reported size of a kitchen in . That cost can easily rise depending on the specific floors, their condition and extra enhancements..Floor Refinishing Labor, Basic Basic labor to refinish hardwood floor with favorable site conditions. Prep up to hr per SF remove debris, spot fill and patch level up to defects per SF. Remove finish layer by pmachine sanding. Apply coats polyurethane finish..Often the refinisher will need to uncover the hardwood floor first. Hardwood floors are often found under carpet, or several decades of old linoleum and tile. Carpet Removal and Disposal is generally around $. per sq.ft. Taking up other flooring is about $. per sq.ft. according to RSMeans..