How to Block Light from the Sides of Blinds
BWS Marketing • July 5, 2021

When you pull down the shades, you want to really darken the room. Whether you want darkness for sleeping, watching movies, or telling scary stories before the sun goes down; no-one likes that halo of light around the blinds that shines despite your best shading efforts. Those light edges are not only a little bit blinding, they also disrupt the look of a room with the curtains drawn. It keeps you from fully darkening a space and in the wrong circumstances, that light around the side of your blinds can really wreck the quality of your sleep or your home theater experience.

So how the heck do you block light from the sides of blinds when your blinds are otherwise perfect? Fortunately, there are more than a few clever answers to suit your needs, depending on your style and the way you want to subtly solve this leaking light problem.

 

Blinds that Fit Perfectly Into the Window Frame

One option is to order custom blinds and a mount that allows your blinds to perfectly fit into the space of your window frame. This means that the edges of your stiff blind fabric or light wood slats perfectly fill the space, the edges of each side lightly brushing the inner edge of your window frame. You may still see a sliver of light, but gone are those big gaps of light singing all the way around your window. Pulled down to the sill, your perfectly fitted custom blinds can block almost all light coming through your window.

 

Blinds Mounted Over the Window Frame Edge

Another option is to buy blinds that are an inch or three wider than your window frame and mount them ‘flush’ on the outside of the window frame instead. For this method, Mount your blinds roller just above the top beam of your window frame. Pull down your blinds so that they layer over the left and right vertical beams of the window frame. With a flush frame, the lower end should lapse just below the lower frame beam. With an extended window sill, bring your shade down to rest on the sill itself.

This overlap method will allow your blinds to sit against the window frame, blocking most of the light that might seep through. Again, you may find a minuscule sliver of light around the sides, but far less than the traditional glowing gap around the blinds.

 

Side Channels and Light Blockers

The most effective approach involves a very small additional installation in your window: Side channels and light-blocker strips. A light-blocker is an l-shaped piece of plastic (or metal, or wood) that mounts just inside your window frame. It can then sit just behind or just in front of the edge of your blinds, providing a small panel that blocks only that tiny space between the blinds and the window frame itself.

Side channels are an even more subtle approach. These u-shaped strips also mount inside the window frame, but they are designed to elegantly blend with the frame and ‘capture’ the side edges of the blinds as channels. The blinds will not only block more light due to having the sides blocked, they will also swing less and can look more elegant with the installation of tasteful side channels.

 

Layered Window Treatments

If you’re looking for a more fabric-focused solution, try layered curtains and window treatments in addition to your blinds. Hanging curtains on either side of the window, for example, are excellent at blocking the light that comes from the sides of each window. This is because the folds of curtain fall against the window frame and nearby wall as they fold back and forth. Combined with blinds, layered curtains are a great window treatment solution for a truly darkened room.

 

Tired of light seeping in around your blinds? Contact us today for the perfect custom solution to perfectly darken each of your windows when closed while enhancing your interior design vision.

 

Expert Advice by Just Blinds

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