Why fitting is so important
Blackout blinds are designed to block out as much light as possible, making them ideal for bedrooms, nurseries, or media rooms. To achieve that full darkening effect, they need to be fitted with care. A blind that’s slightly off-centre or leaves gaps around the edges won’t perform as well, so precise installation is key.
What you’ll need
Most of the tools are simple: a drill with appropriate bits, screws and wall plugs, a tape measure, a pencil, and a spirit level. A screwdriver and step ladder will also make life easier.
Inside recess vs outside fitting
Blackout blinds can be fitted inside the window recess for a tidy, built-in look, or outside the recess if you want to eliminate more light bleeding around the edges. Inside fitting requires millimetre accuracy, while outside fitting is more forgiving and often more effective at blocking out stray light.
Step-by-step fitting guide
- Mark your bracket positions: Hold the blind where you want it to sit, then mark the points for the brackets with a pencil. Use a spirit level to make sure they’re even.
- Fix the brackets: Drill the holes, insert plugs if required, and screw the brackets securely into place.
- Attach the headrail or cassette: Clip the blind into the brackets until it locks firmly.
- Fit side channels (if supplied): Some blackout blinds include side rails to stop light escaping. Fix these neatly along the edges of the window frame.
- Test the blind: Lower and raise it a few times to check that it glides smoothly and covers the window fully.
Common fitting issues
If light leaks through the sides, double-check the blind is centred and that any side channels are flush with the frame. A blind that rolls unevenly often means the brackets aren’t level – loosening and adjusting them usually solves the problem. If the mechanism feels stiff, check that the fabric isn’t snagging on an obstruction.
When to call in the experts
Although fitting blackout blinds is manageable for many DIY enthusiasts, tricky recesses, bay windows, or very wide spans can make the job fiddly. In these cases, it’s worth asking for professional help. Specialists like Kelly’s Blinds can measure and install your blinds with precision, ensuring maximum light control.
What to do next
Once installed, blackout blinds can transform the comfort of your room. If you’re shopping for a new set, browse the wide range at Blackout Blinds. From sleek rollers to pleated and Roman styles, there’s a solution to suit every interior.
FAQ – How to Fit Blackout Blinds?
Are blackout blinds better fitted inside or outside the recess?
Outside fitting usually blocks more light, but inside fitting gives a neater, built-in appearance.
Why is my blackout blind rolling to one side?
It often happens when the brackets aren’t level – adjust their position and try again.
Do blackout blinds always come with side channels?
Not always – but many designs include them as an option to improve light-blocking performance.
