How To Install Blinds

If you want to refresh the look of your windows without replacing them entirely, installing new window blinds is a simple do-it-yourself (DIY) project that’s well within the skills of most homeowners. Window blinds can enhance privacy, control light levels, and help regulate your home’s temperature for better energy efficiency. In this guide, we’ll review the various types of blinds, mounting options, and installation steps to help you successfully install blinds in your home.

Types of Window Blinds and Their Benefits

While most homeowners are familiar with classic Venetian blinds, there are other blind options available, some of which offer additional functionality and visual appeal.

Horizontal Blinds

Horizontal blinds, also called Venetian blinds, are a classic, versatile option that offers effective light control. These blinds consist of horizontal slats that tilt to adjust the amount of light entering a room.

Another popular Venetian-style blind is mini-blinds, which have extra-narrow slats for privacy. Horizontal blinds are typically made from vinyl, aluminum, or wood, and they’re usually more affordable than other blind options. Horizontal blinds are ideal for living rooms, bedrooms, and kitchens.

Vertical Blinds

Vertical blinds feature long, vertical slats that rotate for light control and privacy. They’re easy to operate and can provide a modern, sleek look to your space, drawing the eye up and making a ceiling appear higher. Consider installing vertical blinds on large windows, sliding glass doors, and patio doors, since you can easily push them to one side on their horizontal track.

Cellular Shades

Also known as honeycomb shades, cellular shades have a unique fabric structure that adds extra insulation to the windows they cover. The honeycomb structure traps a layer of air between the window and the rest of the room to prevent thermal loss. According to the Department of Energy, windows are responsible for about 30% of a home’s thermal loss. These energy-efficient blinds can help keep your home cooler in the summer and warmer in the winter and prevent your HVAC system from overworking.

Cellular shades come in various light-filtering options, from sheer to room-darkening. Their insulating, temperature-controlling properties make them an excellent choice for bedrooms and nurseries.

Roller Shades

Roller shades are simple, streamlined window coverings that roll neatly when opened. They come in various fabric options, from light-filtering to blackout, making them suitable for any room. Special solar shades can filter out glare and UV radiation without blocking much light.

Roller shades are easy to operate and can provide a clean, minimalist look to your windows. Because they’re not very ornate, they’re more common in offices and commercial buildings.

Safety Considerations for Homes with Children and Pets

Safety is paramount when choosing blinds, especially in homes with children and pets where dangling cords pose a substantial danger. Opt for cordless blinds or those with inaccessible cords to prevent strangulation hazards, and consider motorized options for added convenience and safety. If your blinds have cords, use cord cleats to keep them out of reach. Always follow the manufacturer’s safety guidelines and keep furniture away from windows and blinds to discourage climbing.

Choosing Between Inside- and Outside-Mount Blinds

After determining the type of blinds you want, decide whether to use an inside- or outside-mount. Inside mounts are more common and take up less space, but outside mounts offer more light and privacy control. Here’s a detailed look at the advantages and disadvantages of each.

Inside Mount

Inside-mount blinds are installed within the window frame, offering a clean, built-in look. They’re ideal for windows with an attractive trim that you want to showcase. However, inside mounts require sufficient depth in the window frame and allow more light to enter around the edges.

Inside Mount Pros

• Allows window trim to remain visible
• Creates a sleek, streamlined appearance
• Takes up less space in the room

Inside Mount Cons

• Can be challenging to install if windows aren’t perfectly square
• May let in more light around the edges
• Requires adequate window depth for installation

Outside Mount

Outside-mount blinds are installed on the wall or trim surrounding the window. They’re a great option for shallow windows or when you want to make a window appear larger. Outside mounts also provide better light blockage than inside mounts and can help conceal imperfections in your window shape.

Outside Mount Pros

• Ideal for shallow windows or those with obstructions
• Makes windows appear larger
• Provides better light control and privacy than inside mounts

Outside Mount Cons

• Covers window trim
• May protrude more into the room
• Requires precise measurements for a proper fit

How To Measure Windows for Blinds

Proper window measurements are essential for ensuring your blinds fit correctly, but the measuring process differs slightly depending on whether you’re opting for inside- or outside-mount blinds.

Measuring for Inside-Mount Blinds

Since these blinds sit inside the window frame, and window frames often shift over time, we recommend taking at least three measurements for each dimension and using the one indicated below if they’re different.

1. Measure the width of the window opening between the side jambs at the top, middle, and bottom. Use the narrowest measurement for the width.
2. Measure the height from the top of the jamb to the sill in three places. Use the longest measurement for the height.
3. Measure the depth of the window frame in three spots to ensure there’s enough space for the blinds.

Measuring for Outside-Mount Blinds

Precision is less critical for outside mounts, since you’re not limited by the size of the frame. Instead, decide how much space you want to cover. Covering a larger space will block more light and make windows appear larger.

1. Measure the width of the area you want the blinds to cover. For extra light blockage, add 2 to 3 inches on each side.
2. Measure the height from where you want the top of the blinds to sit to where you want them to end, typically the window sill or below.
3. Measure any obstructions, such as window cranks or handles, that might interfere with the blinds’ operation.

Tools for Installing Blinds

Having the right tools on hand before you begin installation will make the process more efficient. Gather the following tools for measuring, drilling, and mounting during blind installation:

• Anchors for drywall installations
• Drill with appropriate bits for different materials
• Level
• Metal tape measure
• Pencil or marker
• Screwdriver (manual or electric)
• Stepladder or stool

Preparing Your Windows for Installation

Before you install your new blinds, prepare your windows by removing any existing window treatments, including curtains, rods, or the old blinds. Clean the window frame thoroughly with a window cleaner and microfiber cloth, removing any dust, dirt, or debris that could interfere with the installation.

If you’re installing inside-mount blinds, check that the window frame is deep enough to accommodate the blinds. For outside mount installations, ensure the wall or trim where you’ll be mounting the brackets is clean and in good condition. If you’re using a premade kit, ensure that you have all parts, including mounting brackets, screws, and other hardware.

Step-By-Step Guide To Install Inside Mount Blinds

Installing inside-mount blinds requires precision and attention to detail. Follow these steps for a successful installation.

Marking and Drilling Pilot Holes

1. Position the headrail and mounting bracket assembly within the window frame, ensuring it’s level and centered. Mark the outside of the brackets with a pencil.
2. Remove the mounting brackets and place them against the marks you’ve just made.
3. Mark the screw holes in the brackets with a pencil.
4. Use a drill bit slightly smaller than the included screws to create pilot holes where you’ve made your marks.

Mounting Brackets and Headrail

1. Screw the mounting brackets into place using the provided screws, and use drywall anchors if necessary.
2. If your blinds have a center support bracket, use the same process above to mark it, drill pilot holes, and install it.
3. Carefully lift the headrail into the brackets, ensuring it clicks securely into place.

Attaching Valances and Finishing Touches

1. If your blinds came with a valance—a short piece of drapery that hangs from the top of a window—attach it to the headrail according to the manufacturer’s instructions.
2. Test the operation of the blinds to ensure they raise, lower, and tilt properly.
3. Make any necessary adjustments to ensure the blinds are level and function correctly.

Step-By-Step Guide To Install Outside Mount Blinds

Outside-mount blinds offer more placement flexibility during installation. The steps are very similar to the ones listed above, though you’ll do your marking and drilling above the window frame instead of within it.

Marking the Installation Area

1. Position the blinds a few inches above the window. Make sure the headrail is over the window opening.
2. Use a level to draw a straight line where the top of the headrail will sit.
3. Mark the positions for the mounting brackets evenly, and mark any screw holes.

Securing Brackets and Headrail

1. Drill pilot holes at your marked positions.
2. If mounting on drywall, insert wall anchors before screwing in the brackets.
3. Securely attach the mounting brackets using the provided screws.
4. Lift the headrail into place, ensuring it clicks into the brackets properly.

Adding Decorative Elements

1. Attach any decorative valances or cornices that came with your blinds.
2. If desired, add side returns to give a more finished look to the sides of the blinds.
3. Test the operation of the blinds and make any necessary adjustments.

Troubleshooting Common Installation Issues

Even with careful planning and execution, you may encounter some challenges during the installation process. Here are a few solutions to common blind installation issues:

• Blinds not sitting level: If the blinds don’t sit level, double-check your measurements and bracket placement. Adjust the brackets as needed.
• Difficult operation: For blinds that are difficult to raise or lower, untangle the cords and position the headrail properly in the brackets.
• Light gaps: If there are light gaps, consider using light-blocking strips or opting for outside mount blinds in the future.

Tips for Installing Blinds Without a Drill

While using a drill is the most secure method for installing blinds, there are alternatives if you don’t have access to one or prefer not to make holes in frames or drywall.

• Adhesive mounting strips: Use adhesive mounting strips designed for heavy-duty use
• No-drill brackets: These brackets can anchor in place by magnets, Velcro, or suction cups
• Tension rods: Consider tension rods to suspend lightweight blinds in shallow windows

Remember that these methods aren’t as secure as traditional drilling and may not be suitable for all types of blinds or window sizes.

Maintaining and Cleaning Your Blinds

Regular maintenance will keep your blinds looking great and functioning properly. Dust your blinds weekly with a microfiber cloth or duster. For deeper cleaning, consider gentle vacuuming or wiping the blinds with a damp cloth. Avoid using harsh chemicals, scrubbing cleansers, or chemical solvents that could damage the blinds’ material. Periodically check the cords, wands, and mechanisms for wear and tear, addressing any issues promptly to prevent further damage.

Our Conclusion

Whether you opt for classic horizontal blinds to complement your wood windows or modern options to block out more light, installing blinds is a manageable DIY project that can enhance the look and functionality of your windows. By choosing the right type of blinds, taking accurate measurements, and following the correct installation steps, you can achieve professional-looking results within a matter of hours.