A large indoor swimming pool with a spa at an estate home. (iStock) Indoor pools are the most expensive pools to have, ... Screens and enclosures can cost between $4,800 and $14,300.

Pool & Spa Enclosures will turn your pool into a sun room. Retractable enclosures keep the heat from the sun in, while keeping bugs and dirt out. Story by Jacob Shamsian and editing by Jeremy Dreyfuss ...