10 Best Solar Swimming Pool Covers 2025 in the United States

The BigXwell Solar Pool Cover is designed to warm and protect in-ground pools by using its 16-mil thick polyethylene material with thousands of thermal bubbles that capture and retain solar heat efficiently. Its bright blue color and rectangular shape fit pools up to 16 by 32 feet, but it can also be trimmed to better suit other sizes or shapes, which adds flexibility. The cover floats on the water surface, making it simple to put on and remove without hassle.

A key benefit is its ability to reduce water evaporation by about 95%, helping you save water and reduce the need to refill frequently. The material is lightweight yet durable enough to withstand harsh weather, although being polyethylene, it may eventually show wear if exposed to strong sun or rough handling over time. Users appreciate the ease of use and heat retention, but keep in mind it’s best suited for summer use and may not replace a heater in colder climates.

The product provides a practical and cost-effective way to keep your pool temperature stable and reduce maintenance, especially if your pool matches the size range or you don’t mind trimming the cover to fit.

The VINGLI 12Mil Solar Pool Cover is a solid choice if you want to extend your swimming season by keeping your pool water warmer. Its blue polyethylene material with a 12-mil thickness offers good durability and heat retention. The bubble design is important here—it absorbs and slowly releases heat to your pool, helping maintain a pleasant temperature. This cover fits both inground and above-ground pools and comes in a large 18 by 36-foot rectangular size, which suits most standard pools. If your pool has an irregular shape, you can easily trim the cover to fit, which is handy.

The installation is straightforward—just place it on the water surface with the bubbles facing down—and using it helps reduce water evaporation and keeps debris out, so your pool stays cleaner for longer. However, the cover can be quite heavy at nearly 20 kilograms, which might make handling a bit tricky without extra help or a reel system. Also, the bubbles may look slightly deflated before warm-up, but this is normal due to temperature changes.

The bright blue color is typical for solar covers but may not blend seamlessly with all pool surroundings. If you want a durable, easy-to-use cover that balances warmth retention and water conservation, this one performs well, though managing its weight could require some care.

The Sun2Solar Blue 20 ft x 40 ft Rectangle Pool Solar Cover is designed for rectangular inground and above-ground pools. Made from durable resin material with a solid blue color, it offers good heat retention by using solar energy to warm the pool water by up to 15 degrees. Its bubble design traps heat effectively, helping maintain a consistent temperature even after sunset. This cover also reduces water evaporation by up to 95%, which saves water and reduces the need for chemicals.

Sized at 20 by 40 feet, it fits large pools and includes six heavy-duty grommets for secure placement, though trimming might be needed for pools with unusual shapes or features. Installation is straightforward, as it floats on the water and is lightweight, making it easy to put on and remove. One downside is that it requires hand washing to maintain, and as a floating cover, it doesn’t provide a full physical barrier like safety covers might.

While it prevents debris such as leaves from entering the pool, it’s not a substitute for a solid safety cover. It has a solid 4-star rating from users, making it a reliable choice for pool owners looking to extend their swimming season and save on water and heating costs without complicated installation.