To fix gaps between blinds—or between the blinds and the window frame—you can block the light with Light Blockers, attach magnetic or adhesive felt strips, use overlapping blackout curtains, or adjust crooked cords for uneven gaps.
To eliminate unwanted light bleed and gaps along the sides of window blinds, install adhesive light-blocking strips (L-shaped plastic or vinyl tracks) or layer blackout draperies on top. For wide or motorized shades, upgrading to custom side channels guarantees a 100% total blackout effect.
Why do light gaps happen? Well, all window treatments must be made slightly smaller than the window opening to prevent rubbing on the window frame when the product is raised or lowered. On some windows, the wood or vinyl strip around your window glass may overlap enough to cover the gaps.
Solutions to Block Side Light
Connect the two blinds by attaching a coupling rod between the control chains of the blinds. This will allow you to simultaneously raise and lower both blinds. Note: If you are having trouble with these DIY installation steps, it is a good idea to seek the assistance of an expert.
Can Gorilla Glue hold up blinds? The theoretical answer is yes, but only in a very specific set of circumstances: when the blind is extremely lightweight and more decorative than functional, and when the surface to which it is affixed is suitable for glue and adequately prepared.
There are three main vertical blind stacking options: left stack, right stack, and split stack (also called centre stack or two-way draw). Each one offers a different aesthetic and functional advantage depending on your room layout, window type, and how you use the space.
Light Blockers are L-shaped pieces made from durable polystyrene, specifically designed to block light leakage by covering the gaps that blackout shades can't reach. They can be installed in front of or behind your window coverings for effective light blocking.
Fixing crooked blinds depends on whether they are cordless or corded. For cordless blinds, pull down the high side aggressively while lifting the low side to balance the internal tension. For corded blinds, untie the string knot at the bottom rail, level the blinds, and retie it securely.
This guide will explore practical solutions to ensure your roller blinds block out light completely, giving you a darker, more comfortable space.
If your blinds are newer, under warranty, or only need minor fixes, repair is the more cost-effective route. However, if the repair cost exceeds 50% of the price to replace the blinds, it's best to install new blinds.
In the U.S., the uncovered window is perhaps less an expression of communal trust than one of personal protection. Wealthier homeowners, who can also afford state-of- the-art security systems, may not feel that they need shades. These curtainless windows have become one of our subtlest statements of privilege.
Yes, for your blinds to work to greatest effect and to achieve the right visual finish, window blinds should rest on the windowsill. The only exception to this is vertical blinds which require a small amount of clearance to prevent the louvres from dragging on the windowsill when operated.
Factory Deductions: Inside mounted products have a light gap between 1/8” and 1/4” on either side of the window – this gap is required in order for the product to operate properly.
Some of Stewart's homes utilize interior blinds for light regulation and privacy. Others feature windows framed by exterior shutters, operable versions of which can also be used for light control, ventilation and privacy.
In 2026, vertical blinds are enjoying renewed popularity thanks to improved fabric textures, soft weaves and more elegant louvre designs that look less “office-like” and more stylish in modern homes. Wider louvre options, blackout vertical fabrics and wipe-clean materials have expanded their versatility.
Edge binding (or edge banding) is a strip of fabric tape that wraps around the edges of soft window treatments, such as woven wood, bamboo, or Roman shades. Typically 1 to 2 inches wide, it is sewn onto the sides and bottom of the shade for a combination of durability and style.
2026's Best Blinds
When vertical blinds won't close all the way, the most common culprit is misaligned slats or dust in the headrail. You can usually fix this in minutes using your wand or chain.
You need spacer blocks when your trim or molding might keep your blinds from hanging straight down when mounted directly on the wall or door. So, you insert a spacer block between the wall and the installation brackets to push them away from the wall enough so your blinds can hang straight.
Ditching shades has a lot of upsides regardless of who you are. Uncovered windows bring in natural light, boost well-being, and offer a view of the world outside. The trade-off, of course, is that they also put those inside on display to passersby, and in the summer, they channel heat.
Trending Window Treatment Ideas for Every Room