Pool enclosures can cost anywhere from $5,246 to $15,214 depending on what type of closure it is and the materials that are used for its construction. There is usually a significant difference in price depending on whether you use screen material, glass, or if you decide to install motors into the enclosure frame to make it retractable. There also is the budget-friendly option of installing a pool dome. Let us look at some of the average costs associated with the different types of enclosures and the different materials: Pool enclosure made with screen material: $14 per square foot. Typical pool screen enclosures cost on average around $9,750 for a 700 square foot enclosure. The range is between $5,225 and $14,280. Glass pool enclosure: $55 per square foot. Glass enclosures cost on average around $38,500 for a 700 square foot enclosure. The range is between $31,500 and $45,500. Install a glass enclosure with retractable capabilities: $100 or more per square foot. Now if you install a glass enclosure equipped with motors to retract the roof of the enclosure, then you are looking at an average cost of $70,000 for a 700 square foot enclosure. Though much more expensive, retractable roofs do come with the advantage of opening and closing the roof as the weather dictates. Pool Dome: You can find a budget-friendly pool dome to install that would cost you around $1,200. The range is between $870 and $1,500.