H.Versailtex Thermal Insulated Curtain
Credit: Amazon

The 9 Best Heat-Blocking Curtains You Can Use Year-Round

Keep out the cold and heat while saving money on your electric bill. 
Each product we feature has been independently selected and reviewed by our editorial team. If you make a purchase using the links included, we may earn commission.

Achieving a uniform temperature throughout your entire home is never an easy feat, especially in the summer and winter months. Instead of turning on the air conditioning or cranking up the thermostat, the secret actually lies in your drapery. For many, opting for a set of thermal curtains can help you keep out the cold and heat—all without adding more money to your electric bill.

Designed with layers of heat-blocking fabrics, these innovative drapes successfully insulate your home by acting as a barrier to prevent air from entering or leaving—keeping your room cool or toasty, depending on the season. This technology also allows them to block out light and minimize noise from outside, making them excellent for bedrooms and nurseries. Thermal curtains can also provide an extra layer of protection for your furniture against the sun's damaging UV rays. Below, discover the best heat-blocking curtains that each have amassed thousands of glowing reviews, and find out how to pick the right ones for your home.

The Best Heat-Blocking Curtains of 2022

What to Consider When Shopping for Thermal Curtains

Like any new addition to your home, finding the best thermal curtains requires careful consideration. These are a few details to look for while shopping to ensure your curtains will fulfill your needs.

Size: Make sure that your heat-blocking curtains fit on your curtain rod as well as within the window frame. Once you've determined the length and width of your window, experts advise choosing a set of curtains that is slightly larger than the actual measurements to ensure that they will effectively block out light, trap in heat, and keep out the cold. Or, you can hang them higher above the window to prevent pooling on the floor.

Paneling: Those with smaller windows may want to try a single panel heat-blocking curtain first, whereas two-panel curtains will better suit larger windows because they cover more space. A single-paneled curtain is also recommended for sliding doors and windows, as it can be easily positioned in the same direction as the movement. In most cases, opting for single panel curtains will be more cost-effective since you're only buying one unit.

Heading Type: The heading of your curtain is both an aesthetic and functional choice. Many buyers prefer grommet (also known as eyelet) curtains, which have circular openings at the top, because they are easier to feed across the rod and have a quieter and smoother glide when opening and closing the drapes. Other heading types include rod pockets, pleats, tab tops, and concealed back tabs.

Material: It's wise to take the fabric into account as well. For heavy-duty heat blocking, you'll want thermal drapes that are made with thick materials like polyester and microfiber. These also resist moisture and will minimize it from accumulating in between the window and curtain. If you're buying curtains for your patio, make sure you've chosen an outdoor option made with weather-resistant fabrics so it can withstand the elements. The color of the curtains may also play a role in its effectiveness. When choosing a color, it's best to opt for darker hues, as they're stronger sun shields. There's a chance that light may still be able to pass through lighter colors, which is important to take into consideration if you're using it as a blackout curtain for sleep.

Keep scrolling through to explore the best heat-blocking curtains according to Amazon and Wayfair shoppers.  

BGment Blackout Curtains
Credit: Amazon

Best Overall: BGment Thermal Insulated Blackout Curtain

BUY IT: from $18.76; amazon.com

Available in 22 colors and a variety of sizes, the BGment Thermal Insulated Blackout Curtain seamlessly fits within most design schemes. The curtain features an innovative triple-weave design that blocks 85 to 99 percent of sunlight with its high density blackout yarn. It also balances room temperature, reduces outside noise, and protects furniture from the damaging effects of the sun's UV rays. What's more, its grommet construction allows for easy hanging.

The 4.6-star rated curtain comes in a set of two and has earned over 35,000 perfect reviews from Amazon shoppers. 

Highlights:

  • Available in 22 colors
  • 14 size options
  • Machine washable
  • Sold in sets of 2
Best Single Heat Blocking Curtain
Credit: Amazon

Best Single Panel: Best Home Fashion Thermal Curtain

BUY IT: from $39.99; amazon.com

Thanks to its dense triple-weave construction, this single panel thermal curtain from Best Home Fashion insulates temperatures, blocks out light, and reduces noise. In fact, it shields you from 99 percent of light and 100 percent of UV rays. It comes in 20 colors and three varying sizes, each equipped with bronze-rimmed grommets measuring 1.6 inches in diameter.

Highlights:

  • Available in 17 colors 
  • 3 size options 
  • Machine washable
  • Panels sold individually
Heat Blocking Curtain for Sliding Doors
Credit: Amazon

Best for Sliding Doors: Rose Home Fashion Thermal Curtain

BUY IT: from $14.99; amazon.com

Providing the perfect width to cover your sliding door, the Rose Home Fashion Thermal Curtain is made from a polyester blend that is soft-to-the-touch but heavy-duty enough to successfully insulate your home. In addition to its thermal and temperature controlling capabilities, this pick's microfiber layering doubles as a blackout curtain, reducing light by 99 percent. Plus, it minimizes noises. Choose between 10 colors and six sizes.

Highlights:

  • Available in 10 colors 
  • 6 size options
  • Machine washable
  • Panels sold individually 
curtains
Credit: Courtesy of Amazon

Best with Grommets: Utopia Bedding Grommet Thermal Curtain

BUY IT: from $20.95; amazon.com

Fans of grommet-style curtains will definitely find the Utopia Bedding 2-Panel Grommet Thermal Curtain to their liking. Lined with eight bronze rust-resistant grommets measuring 1.6 inches in diameter, the insulated drape securely glides across your curtain rod and adds an elegant touch to your home. This thermal curtain blocks 99 percent of light and up to 60 percent of outside noise from entering rooms and is available in eight classic colors. You also have your choice of three different sizes to best suit your window.

Highlights:

  • Available in 7 colors
  • 2 size options
  • Machine washable
  • Sold in sets of 2
curtains
Credit: Courtesy of Wayfair

Best Blackout: Lark Manor Solid Blackout Thermal Curtain

BUY IT: from $32.71; wayfair.com

Touting an impressive 4.7-star rating from Wayfair reviewers, this blackout thermal curtain from Lark Manor is made with a dense three-weave material to adequately block light and keep your room dark, making it ideal for bedrooms. The grommet-lined pick's silky soft fabric comes in over 30 colors and dresses up windows while providing quality noise reduction and temperature regulation—two things sensitive sleepers will benefit from. Choose between eight different length options to ensure a perfect fit for your space.

Highlights:

  • Available in 32 colors
  • 8 size options
  • Machine washable
  • Sold in sets of 2
curtains
Credit: Courtesy of Amazon

Best Outdoor: RYB Home Thermal Patio Curtain

BUY IT: from $21.95; amazon.com

Enjoy your time al fresco with this single panel patio curtain, which happens to be Amazon's best-selling outdoor curtain. It blocks 85 to 95 percent of light and is lined with insulating materials to balance the temperature. For added durability, the thermal outdoor drape has a weatherproof exterior and rust-resistant grommets. It's also machine washable, fade-resistant, and available in 10 colors.

Highlights:

  • Available in 19 sizes
  • 11 color options
  • Machine washable 
  • Panels sold individually 
  • Waterproof
curtains
Credit: Courtesy of Amazon

Best Noise Reducing: NiceTown Thermal Insulated Curtain

BUY IT: from $18.76; amazon.com

The NiceTown Thermal Insulated Curtain's double-sided microfiber design amps up its insulation capabilities when compared to its counterparts. It's not hard to see why it has more than 71,000 five-star customer reviews. This heavy-duty material easily blocks out outdoor noise like cars, and intercepts 85 to 99 percent of light and UV rays. Shoppers have their choice of 35 colors and 10 length varieties, each of which is wrinkle-resistant and lined with durable grommets.

Highlights:

  • Available in 39 colors
  • 16 size options
  • Machine washable
  • Sold in sets of 2
Heat Blocking Curtains for Small Windows
Credit: Amazon

Best for Small Windows: Deconovo Thermal Curtain

BUY IT: from $25.99 amazon.com

Better suited for narrow windows, the Deconovo Thermal Curtain is available in shorter lengths to help shoppers achieve the perfect drapery for their space. It's made from soft polyester and coated with a reflective triple-pass material for insulation, blocking out light, and reducing outside noise. The two-paneled curtain's grommet construction guarantees an easy setup. Reviewers were delighted to find that the set comes with matching hook-and-loop tie-backs.

Highlights:

  • Available in 17 colors
  • 17 size options
  • Hand wash only
  • Sold in sets of 2
H.Versailtex Thermal Insulated Curtain
Credit: Amazon

Best for Winter: H.Versailtex Thermal Insulated Curtain

BUY IT: from $20.99; amazon.com

Among its 13,000-plus five-star reviews, a common praise among shoppers was this heavy-duty curtain's ability to keep the cold out during the winter months. The secret lies in its triple-layered fabric, which is designed with a sun-reflecting layer and high-density blackout silk layer that blocks out 99 percent of light for optimal insulation and temperature regulation.

Highlights:

  • Available in 20 colors
  • 10 size options
  • Machine washable
  • Sold in sets of 2