various energy-efficient window treatments

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review: the best window treatments for energy efficiency (updated march 8 2025)

By Evelyn Reed

Published: 08 Mar 2025

My Window Woes and the Quest for Cozy

Let's be honest, my old windows were a disaster. Drafty? You bet. Energy bills through the roof? Absolutely. I felt like I was throwing money out the window – literally! So, I embarked on a mission: to find the best window treatments for energy efficiency. It wasn't just about saving money (though that was a major motivator). It was about creating a truly cozy home, one where I could relax without shivering in my own living room. This is my story, complete with lessons learned and recommendations.

woman looking frustrated at a drafty window

woman looking frustrated at a drafty window | Image: Supplied

Cellular Shades: The Champions of Cozy

After lots of research, I landed on cellular shades. Why? Because they're like little honeycombs of warmth (or coolness, depending on the season). The honeycomb structure traps air, creating an insulating barrier. This means less energy used for heating in winter and cooling in summer. I opted for the thicker cells for maximum insulation, and let me tell you, the difference is incredible! The warmth they add during cold winter nights is amazing; I don't need to crank up the thermostat so high. And in summer, they keep the sun's rays out, ensuring a comfortable indoor climate. Trust me, the investment is well worth it.

  • Pros: Excellent insulation, effective light control, available in various colors and opacities.
  • Cons: Can be a bit pricey compared to other options, not ideal for all window styles.
close-up of cellular shades showing honeycomb structure

close-up of cellular shades showing honeycomb structure | Image: Supplied

Curtains: A Stylish and Surprisingly Effective Option

Don't underestimate the power of curtains! Thick, lined curtains, especially those made of heavy materials like velvet or thermal fabrics, can make a real difference in energy efficiency. They add an extra layer of insulation, blocking drafts and reducing heat loss (or gain). I've found that heavier curtains dramatically improved my room's warmth, especially in the winter. They add a touch of elegance and style, too. When purchasing curtains, look for terms like "energy-efficient" or "thermal-lined." They make a huge difference.

  • Pros: Affordable, versatile, enhances home decor, various styles available.
  • Cons: May not be as effective as cellular shades, require regular cleaning.
stylish living room with thick lined curtains

stylish living room with thick lined curtains | Image: Supplied

Thermal Blinds: The Budget-Friendly Choice

For those on a tighter budget, thermal blinds are a fantastic option. They often feature a thermal backing that helps insulate your windows. They aren't as dramatic as curtains, or as energy-efficient as cellular shades, but they still provide a noticeable improvement in terms of heat retention and light control. If you're looking for a balance between affordability and energy efficiency, thermal blinds are a great choice.

  • Pros: Cost-effective, easy to install, wide range of colors and styles.
  • Cons: May not be as effective as other options in extreme temperatures.
thermal blinds installed on a window

thermal blinds installed on a window | Image: Supplied

Window Film: A Quick Fix with Big Impact

Window film is like a superhero of energy efficiency. It’s a thin, almost invisible film that you apply directly to your window. It’s surprisingly effective at reducing heat transfer. This film can significantly reduce heat loss in winter and heat gain in summer. It's a quick, relatively inexpensive solution that can be a great addition to existing treatments.

  • Pros: Easy to install, inexpensive, can significantly improve energy efficiency.
  • Cons: Can reduce light transmission and might look a bit obvious; requires professional installation for long term lasting results.
window film being applied to a window

window film being applied to a window | Image: Supplied

Choosing the Right Treatment for YOU

Ultimately, the best window treatment for energy efficiency depends on your budget, your style preferences, and your climate. Think about your priorities – do you need maximum insulation, or are you more focused on style? Consider the pros and cons of each option, and don’t be afraid to experiment to find what works best for your home. For me, it was a combination of cellular shades and heavy curtains! I'm so happy I invested in improving my windows — I've got a cozier home, and lower energy bills to boot! What about you? What are your thoughts? What window treatments are you using? Let me know in the comments below!

A home is not just a house; it's the warmth of a family, the comfort of a cozy space, and the energy that fuels our lives. – Evelyn Reed

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