While there are products available for DIY replastering (www.sidercrete.com has a kit that covers 60 sq.ft for $130), most DIY pool products are designed for smaller areas. A professional replastering job costs about $5/sq.ft. This is based on the national average calculated by homeadvisor.com. Plain plaster will cost about $5/sq.ft, while polished exposed aggregate plaster will run nearly twice as much.
Resurfacing a pool costs an average of $7,000 per 1000 square feet in the U.S. You will pay between $1,500-$100,000 depending on the area and type of your pool.
A pool can be rehabilitated. A new lining could be the answer to an aboveground swimming pool that is looking dull. Resurfacing is an option for a fiberglass or concrete above-ground pool that's looking tired.