When you’re battling high temperatures indoors, finding the best blinds to keep heat out is a top priority. Have you wondered “do vertical blinds help with cooling costs?” or if they’re suitable as energy efficient window coverings? In this post, we’re looking at how vertical blinds relate with heat reduction and our SelectBlinds recommendations.
The Heat Problem: Why Window Coverings Matter
In peak summer, roughly 76% of the sun’s rays that hit standard double-pane windows become indoor heat, according to the U.S. Department of Energy (DOE). That blistering sunlight drives up cooling costs and pushes indoor temps higher.
Window coverings are a solution to cooling rooms down. The DOE also reports that both vertical and horizontal blinds effectively reduce summer heat gain and glare, thanks to their adjustable slats.
Are vertical blinds good for summer cooling? Absolutely — when chosen and used properly.
Types of Vertical Treatments for Heat Control
Here are three excellent types of vertical summer heat window solutions we offer:
- Vertical cellulars: Honeycomb design traps air, providing top-tier insulation and cooling performance.
- Standard vertical blinds: Available in PVC or room-darkening fabrics; easy to tilt and control.
- Panel track blinds: Ideal for large sliding doors, with wide panels that step aside neatly and block heat effectively.
Tips to Maximize Cooling with Vertical Treatments
- Close mid-day – During sunny hours, keep blinds closed or tilted upward.
- Choose light/reflective finishes – White or light-colored slats help bounce heat away.
- Combine with insulation – Pair with curtains for extra efficiency.
Should You Use Vertical Blinds for Heat?
If you have big windows or need sun-blocking blinds for sliding doors, vertical blinds are a smart choice. They offer:
- Precise light and heat control with slat adjustments
- High effectiveness when fully closed, especially in room-darkening fabrics
- Flexibility and style choices — cellular liners, PVC, or fabric
So yes, vertical blinds help keep your house cool and meaningfully reduce your cooling bill.
Final Take: Do Vertical Blinds Block Out Heat?
They do! When properly selected, installed, and used, vertical blinds serve as effective summer heat window solutions. Remember to pick insulated styles like vertical cellulars, use light finishes, and close them during peak sun. You’ll see cooler rooms, reduced energy use, and long-term savings.
Explore our full vertical collection — vertical cellulars, classic vertical blinds, and panel track blinds — and cool your home in style this summer.
