Installing window blinds is a great way to improve your home’s look while enhancing privacy and light control. Doing it yourself might sound tricky, but with the right preparation and a little patience, it’s a task most people can handle. 

Whether you’re mounting blinds on uPVC windows, dealing with roller blinds, or working with cellular shades, the basic steps are easy to follow and can be done with common household tools.

Tools and Materials You Will Need

Before starting, make sure you have everything you need. The tools needed for blind installation include a tape measure, pencil, drill, screws, mounting brackets, a screwdriver, and a spirit level. You’ll also need the blinds themselves, which should come with their own installation guides and fittings. These tools will help you take accurate measurements, mark the mounting brackets, and secure the blinds to your window.

Step By Step Blinds Installation

Step 1: Measure the Width and Height

The first step in blind installation is measuring your windows. For inside mount blinds, measure the width of the window at the top, middle, and bottom. Use the narrowest width to ensure the blinds will fit neatly into the recess. For the height, measure from the top of the window to the sill on the left, centre, and right, and use the shortest measurement. Accurate measurements are critical to ensure your window coverings fit properly.

If you’re installing outside mount blinds, measure the total width and height of the area you want to cover. Add 5–10 centimetres on each side of the window frame to ensure the blinds provide full coverage. Double-check your measurements before proceeding, as even a small error can lead to a poor fit.

• Inside Mount:
  1. Measure the width of the window at the top, middle, and bottom. Use the narrowest measurement.
  2. Measure the height of the window at the left, centre, and right. Use the shortest measurement.
• Outside Mount:
  1. Measure the width of the area you want the blinds to cover. Add 5–10 cm on each side of the window frame for better coverage.
  2. Measure the desired height from the top of the window to where the blinds will end.

Double-check your measurements before proceeding.

Step 2: Preparing for Installation

Now that you’ve measured your windows, it’s time to prepare the installation area. Clean the window frame to remove dust or debris that could interfere with the brackets or blinds. If you’re installing on uPVC windows, make sure you’re using no-drill brackets or adhesive options designed specifically for these surfaces to avoid damage.

Next, gather your tools and place everything within easy reach. This includes the blinds, mounting brackets, and screws. Carefully read the blinds fitting guide provided by the manufacturer to familiarise yourself with any specific steps or features for your type of blind.

Step 3: Installing Inside Mount Blinds

For inside mount blinds, start by holding the mounting brackets at the top corners of the window recess. Use a pencil to mark where the screws will go. Make sure the brackets are level before proceeding. If they’re not properly aligned, the blinds may hang unevenly.

Drill pilot holes at the marked points to make it easier to drive in the screws. This step is especially important if you’re working with plaster or drywall, as it reduces the chance of cracking. Insert wall plugs if necessary for added support, then screw the brackets securely into place. Once the brackets are installed, slot the headrail into the brackets as instructed in the blind installation tips provided by the manufacturer. Test the blinds to ensure they raise and lower smoothly.

Step 4: Installing Outside Mount Blinds

If you’ve chosen outside mount blinds, the process is slightly different. Start by marking where the brackets will go above the window frame, ensuring there’s enough overlap on each side to block out light effectively. Measure carefully and use a spirit level to ensure the brackets are straight.

Drill pilot holes at the marked spots, insert wall plugs if needed, and secure the brackets with screws. Attach the headrail into the brackets, ensuring it clicks firmly into place. Adjust the blinds to make sure they are centred and test their operation. Outside mount blinds are great for creating the appearance of larger windows while providing excellent light control.

Common Mistakes in Blinds Installation

One of the most common mistakes when installing blinds is incorrect measurements. Always measure the top, middle, and bottom of the window recess for inside mounts, and add extra width for outside mounts. Another issue is forgetting to drill pilot holes, which can make it harder to secure the brackets and may even damage the wall. Loose or wobbly brackets are often caused by not using wall plugs, especially on plaster walls.

To avoid these problems, take your time during the preparation stage and double-check all measurements and alignments before drilling.

Troubleshooting Common Installation Issues

• Blinds Are Uneven:
  • Loosen the brackets, realign using a spirit level, and retighten.
• Blinds Won’t Lower or Raise:
  • Check for obstructions in the headrail or brackets.
• Loose or Wobbly Brackets:
  • Tighten screws or use larger wall plugs for better stability.

Safety Considerations

For corded blinds, it’s essential to install safety cleats or tension devices to keep cords out of reach of children and pets. This is a legal requirement in the UK and helps prevent accidents. Ensure all cords are securely fastened and that the blinds operate smoothly without excessive force.

Choosing the Right Type of Blinds for Your Space

• Roller Blinds: Great for minimal, modern designs.
• Faux Wood Blinds: Best for humid spaces like bathrooms.
• Cellular Shades: Ideal for insulation in colder rooms.

Caring for Your New Window Blinds

To keep your blinds looking their best, clean them regularly using a soft cloth or a vacuum with a brush attachment. Faux wood blinds can be wiped down with a damp cloth, while roller blinds and cellular shades benefit from gentle dusting. Avoid using harsh chemicals, as they can damage the material. Inspect your blinds periodically to check for wear and tear, tightening any loose brackets or screws as needed.

Made to Measure Blinds and Installation Services from Best Blinds

Fitting blinds yourself can be a rewarding project, but it’s not your only option. At Best Blinds, we make the process even easier by offering a wide range of made-to-measure blinds tailored to fit your windows perfectly. With our installation services included, you can enjoy professional results without lifting a finger.

Whether you’re after roller blinds, faux wood blinds, or Roman blinds, we have everything you need to transform your space with minimal effort. Visit Best Blinds today to explore our collection and let us help you achieve the perfect look for your home.

FAQs: Window Blinds Installation

1. How do I measure my windows for blind installation?
   For inside mounts, measure the width of the window at the top, middle, and bottom, and use the narrowest measurement. For outside mounts, measure the width and height of the area you want to cover, adding 5–10 cm on each side for overlap.
2. What are the most common mistakes?
   Common mistakes include incorrect measurements, skipping pilot holes when drilling, uneven brackets, and forgetting to use wall plugs for stability. Double-check your measurements and use a spirit level for proper alignment.
3. Do I need a drill to install window blinds?
   In most cases, yes. A drill is essential for creating pilot holes and securing mounting brackets, especially on plaster or drywall. For no-drill blinds, adhesive brackets or tension fittings can be used.
4. What should I do if my blinds are uneven after installation?
   Check that the mounting brackets are aligned and level. Loosen the screws slightly, adjust the brackets, and retighten them. Using a spirit level during installation helps avoid this issue.
5. Can I install blinds on uPVC windows without damaging the frame?
   Yes, you can use no-drill options like adhesive brackets or tension-fit blinds, which are specifically designed for uPVC windows.
6. What safety features should I install for corded blinds?
   Cord safety cleats or tension devices should be secured to the wall to keep cords out of reach of children and pets. These are required by UK safety regulations.
7. How can I make sure my blinds are securely mounted?
   Use the correct screws and wall plugs for your wall type, and ensure the mounting brackets are tightly secured. Double-check the stability of the brackets by gently pulling on the blinds before finishing the installation.