10 Best Window Coverings To Keep Heat Out 2025 in the United States

The GoDear Design 99.99% Blackout Adjustable Sliding Panel Track Blinds are designed to provide superior light blocking and insulation, making them a great choice for those looking to reduce heat and maintain a comfortable indoor temperature. Made from a natural woven blend of 40% paper and 60% poly, these blinds offer a modern and sophisticated alternative to traditional vertical blinds. They are highly effective at blocking up to 99.99% of sunlight, which helps minimize heat loss in colder months and reduces energy costs throughout the year.

Additionally, the blinds offer enhanced privacy, making them suitable for bedrooms, nurseries, media rooms, and large windows. They also protect furniture and floors from sun damage and fading. The adjustable design allows for a custom fit with a track that can extend from 45.8 inches to 86 inches wide, and the panels can be trimmed to fit your specific needs.

The blinds are easy to install with multiple mounting options (wall or ceiling) and include a cordless system, making them safe for homes with children and pets. However, it's important to note that the blinds are not water-resistant and the actual color may vary depending on your display. The product requires assembly, but it comes with all necessary hardware and detailed instructions. They are ideal for anyone looking to improve insulation and privacy in their home.

The CHICOLOGY Roman Shades in Belgian Denim are a stylish and practical choice for various rooms. These shades are made from polyester, which is a durable material. The Belgian Denim color offers a modern look that can complement different interior styles. In terms of opacity, these shades are designed for room darkening, which means they provide excellent privacy and block out a significant amount of light. However, they are not entirely blackout shades, so some light may still filter through, which might not be ideal for those looking for complete darkness.

These shades do not require batteries and come with a cordless control type, making them safe around children and easy to operate. They are also easy to install and come with the necessary mounting hardware for both inside and outside mounts. While they offer good insulation to keep heat out, they are not water-resistant, so they may not be suitable for areas with high moisture. The shades are easy to maintain, requiring only light dusting or spot cleaning.

These Roman shades are a solid option for adding style and some level of light filtering and heat insulation to your windows, but they may not be suitable for rooms where complete darkness or maximum privacy is required.

The Eclipse Kendall curtain is a solid, charcoal-colored panel made from 100% polyester, designed to combine style with high performance. Its blackout lining blocks 98% to 99.9% of sunlight and harmful UV rays, which is great for privacy and protecting interiors from sun damage. This makes it a strong candidate for bedroom windows or any space where light and heat control are important.

Thanks to its Thermaback technology, it offers thermal insulation that helps keep rooms cooler in summer and warmer in winter, potentially reducing energy bills. Noise reduction is an added benefit, which can improve comfort in busy or noisy areas. The curtain uses a grommet style for hanging and fits rods up to 1.5 inches, making installation straightforward. It’s machine washable, which simplifies care and upkeep.

The fabric isn’t water-resistant, so it’s not suitable for outdoor use or damp environments. The thickness is modest (0.1 inches), so while it insulates well, it might not block drafts as effectively as heavier curtains. If you want a solid, modern look with reliable blackout and insulation capabilities, this curtain fits the bill well for indoor use, especially in bedrooms or living rooms where you want to limit heat and light intrusion without compromising on style.