Two roller blinds in one window improve a room’s utility and appearance. Adjusting each blind separately gives you more light and privacy control. This step-by-step instruction will help you layer colors or textures or combine blackout and sheer blinds.

Preparation and Planning

Before diving into the installation process, planning and preparing is crucial. This phase involves choosing the right blinds, gathering the necessary tools, and accurately measuring your window.

Choosing Your Blinds

Select blinds that complement your interior décor and meet your functionality needs. Consider the material, color, and opacity of the blinds. If your window is exposed to high levels of sunlight, opt for UV-resistant materials to prevent fading.

Choosing the Installation Type

Inside vs. Outside Mount

Choose to place your blinds inside the window frame for a clean, built-in look or outside to make the window appear larger and cover the frame. Outside mounts cover the window more freely, while inside mounts are neat.

Installing Double Brackets

The easiest way to install two blinds on one window is with double brackets. Install these brackets inside or outside the window frame to hold two roller blinds. Choose brackets that match your blinds’ weight and size.

Tools and Materials

You will need the following tools and materials:

  • Measuring tape
  • Pencil
  • Drill with bits
  • Screwdriver
  • Level
  • Brackets (usually provided with the blinds)
  • Wall anchors (for plaster or drywall installations)

Measuring Your Window

Accurate measurements are crucial. Measure the width of the window at the top, middle, and bottom. Use the narrowest width measurement to ensure the blinds fit within the window frame. Decide if you want an inside mount (blinds hanging inside the window frame) or an outside mount (blinds hanging outside the window frame) and measure accordingly.

Installation Process

With your materials ready and measurements in hand, you’re set to install the roller blinds. Here’s a step-by-step guide:

Step 1: Mark the Bracket Placement

  • For an inside mount, mark the spots for the brackets in the upper corners of the window frame. For an outside mount, mark the spots on the wall above the window, ensuring the blinds will cover the window completely when extended.
  • Use a level to ensure your marks are even.

Step 2: Attach the Brackets

  • Pre-drill holes at your marked spots. If you’re drilling into drywall or plaster, insert wall anchors first.
  • Screw the brackets into place, making sure they’re tightly secured and level.

Step 3: Install the First Blind

  • Most roller blinds come with a pin side and a control side. The pin side usually fits into a bracket hole, while the control side might have a locking mechanism.
  • Lift the first blind into position, slotting the pin side into its bracket first, then the control side. Ensure it clicks into place securely.

Step 4: Install the Second Blind

  • If you’re using dual brackets, the process is similar to installing the first blind. Lift the second blind into its brackets, ensuring it’s securely locked in.
  • For separate installations, repeat Steps 1 to 3 for the second blind, ensuring it’s parallel to the first.

Step 5: Test and Adjust

  • Once both blinds are installed, test them individually. Lower and raise each blind to ensure smooth operation.
  • If either blind is uneven or sticks during operation, double-check the brackets for level and adjust as necessary.

Finishing Touches

With both blinds installed, you can add finishing touches to enhance the appearance and functionality of your window treatment.

Adding a Valance or Cornice

A valance or cornice can hide the hardware and brackets, giving your window a cleaner look. Choose a style that matches your room’s décor.

Safety and Childproofing

Ensure the control chains or cords are out of reach of children. Install safety devices like cord cleats or chain guides to prevent accidents.

Maintenance and Care

Maintain your roller blinds according to the manufacturer’s directions to keep them looking good. Blinds last longer with regular dusting, gentle cleaning, and moisture avoidance (for some materials).


Installing two roller blinds in one window is easy and may transform your room. A professional finish can be achieved by carefully choosing your blinds, precisely measuring your space, and following these installation processes. Remember, planning, precision, and patience are vital to installation success. Your new blinds will increase light management, privacy, and your space’s appearance.