Window Film Blog
Energy Efficient Window Treatments

Energy Efficient Window Treatments

We all love the sun streaming in our windows to lend a bright and cheery atmosphere to our homes. But, depending on where you live, too much sun can make your home less energy efficient and cause high cooling bills. Energy efficient window treatments can help alleviate this issue.

And according to the U.S. Department of Energy (DOE), up to 30% of the need for heating and cooling in a home is due to heat passing through windows!! They also say,

“In cooling seasons, about 76% of sunlight that falls on standard double-pane windows enters to become heat.  Window coverings can help with this loss of energy by providing comfort, regulating temperatures, and lowering energy bills. The exact savings will depend on the type of attachment, the season, the climate, and how the attachment is used.”

So, let’s take a look at your energy efficient window treatment options to get you saving energy and money!


An exterior energy efficient option, awnings are affixed to the house above a window similar to a small roof that provides cover and shade to the window.

Energy efficient window treatments, Awnings on a home

Awnings can be a permanent and fixed part of the home, or they can be added after you buy a home. There are also awning options that are retractable, so you don’t have to have them covering the windows 24/7.

The benefits of awnings are that, according to the DOE, they can reduce solar heat gain between 65% and 77%, depending on which way the window faces. They also protect the exterior envelope of the home that they cover – keeping rain away from window openings. And besides being practical, done right, awnings can add some curb appeal to a home.

There are some drawbacks to awnings that include:

  • the relatively high cost of installation
  • the maintenance requirements – awnings require regular cleaning to keep them working well and looking good
  • and the need to be retracted in bad weather – and if they don’t retract, they risk damage from wind, hail, or heavy snow


Curtains are an interior type of energy efficient window treatments that often act as a part of an overall room’s design. They can be made of different materials, can have different lengths, and can be hung in different ways depending on the look the homeowner is trying to achieve. The main argument for curtains is the beauty they can add to a space as a design element.

Energy Efficient Window Treatments, Striped Tab Top Curtains

Other benefits of curtains are that they typically cover the space where the window meets the wall and where the sash meets the frame: two main areas for drafts. Curtains (or drapes as they are sometimes called) can be made in a heavy fabric that helps to insulate the interior from drafty windows. Plus they can also be lined in a blackout fabric that will reflect sunlight back out the window and darken rooms. 

Some reasons not to choose curtains are:

  • they can be expensive, depending on the quality and if they are custom made
  • they give a room a more formal look, which may not be your aesthetic
  • and they need to be periodically cleaned as they will attract dust and dirt from the home, and depending on the fabric of the curtains, this may require dry cleaning


Blinds are a popular option for energy efficient window treatments for their streamlined, more modern look.

window blinds

According to GearPost’s Buying Guide, there are nine types of blinds available today:

  • Venetian blinds are made from horizontal slats of wood, plastic, or metal. They are strung together so they can be moved up and down on a window. Venetian blinds are one of the most popular types of blinds and can be tilted up to 180 degrees. 
  • Mini blinds are smaller format Venetian blinds. The slats are typically at least 1/2 the width of typical Venetian blinds. Often blinds with slats with a 1″ or less width are considered mini blinds.
  • Vertical blinds have slats made from vinyl or fabric that are hung vertically. The slats are typically several inches wide and are often used for patio or sliding glass doors.
  • Panel blinds are a type of vertical blind that is made up of a handful of fabric panels typically a foot or wider. Panel blinds do not tilt so when closed there is no option to let in some light.
  • Aluminum blinds are metal blinds meant to reflect the heat back outside. The slats are typically 1/2″ to 1″ wide. 
  • Rolling blinds have no slats and are instead made from a sheet of material – cloth, vinyl, or a natural material like bamboo. They roll down from the top of the window.
  • Outdoor blinds are blinds made from exterior-grade materials to withstand the weather. And they are mounted on the exterior of the window.
  • Cellular shades are also called honeycomb shades. They are made from spun polyester that is folded like an accordion. Cellular shades can be pulled up and down without needing any cords.
  • Motorized blinds are any type of blind that can be automatically raised and lowered by a small motor. So these blinds can be connected to a smart home hub like Alexa or Google Home.

Window Film

Window film is an energy efficient window treatment made from PET, a common plastic used in many household items and other types of film. Using advanced technology, ComforTech™ Ceramic Series film is treated with nano ceramic particles to reflect and absorb light.  You apply the film to the inside of a window to block heat and harmful UV rays while still letting in light.

Window film being held up to glass

A better way to reduce heat is with solar control window film like Concord’s ComforTech™ Ceramic Series. ComforTech™ rejects or absorbs solar energy, keeping it from heating up your space. We offer a range of films that reject 51% – 82% depending on the shade you choose. As you can see in the table below, the darker the film, the more solar energy is rejected.

ComforTech Window Film Specifications Chart


Installing ComforTech™ on the interior of your windows will significantly improve the livability and comfort of your rooms.

Upgrade your windows at a fraction of the cost of replacing them with ComforTech™ Ceramic Series window film. Our film will block or absorb up to 82% of the energy from the sun. This will dramatically improve the comfort in your home. Give your AC a break and live more sustainably and efficiently with Concord Window Film!

Additional Benefits of Window Film

In addition to energy savings, window film offers other benefits including climate comfort, glare reduction, UV protection, fade control, and added daytime privacy.

If you are ready to experience how window film can help you enhance the comfort of your home, visit today. It’s like putting a pair of sunglasses on your windows!

Connect for News, Deals and Product Info