Why proper installation is important
Venetian blinds are timeless, with horizontal slats that tilt to let light in or block it out. When installed correctly, they’ll hang straight, move smoothly, and give you excellent control over privacy and brightness. A rushed or uneven fit, though, can leave the slats crooked or cause the mechanism to strain. Taking the time to fit them properly ensures years of trouble-free use.
Tools to have ready
Before starting, gather a drill with suitable bits, screws and plugs, a pencil, a measuring tape, and a spirit level. A screwdriver and step ladder are also handy. Having everything prepared saves time once you’re up at the window.
Inside or outside fitting
Venetian blinds can be fitted either inside the window recess for a neat, minimal look, or outside the recess, fixed above the window frame, to block out more light and make the window appear larger. Inside fitting requires more precise measurements, while outside fitting is a little more forgiving.
Step-by-step fitting guide
- Mark your positions: Hold the headrail where you want the blind to sit and mark the bracket positions with a pencil. Use a spirit level to check they’re perfectly straight.
- Drill and secure brackets: Drill pilot holes, insert plugs if needed, and screw the brackets firmly into place. Uneven brackets are the main reason blinds hang crookedly.
- Clip in the headrail: Slot the blind’s headrail into the brackets until it clicks into place.
- Attach the safety cleat (for corded blinds): Fix the cleat to the wall to keep cords neat and safe.
- Test the blind: Lower and raise it fully, and tilt the slats using the wand or cord to check everything is working smoothly.

Common problems and fixes
If the blind doesn’t sit level, one bracket is likely slightly higher than the other – loosen and adjust until even. Stiff operation often comes from dust or tight brackets; giving them a quick clean or loosening the screws slightly usually helps. If the slats won’t tilt properly, make sure the wand or cord is correctly connected to the tilt mechanism.
When to call in the professionals
If your windows are extra wide, unusually shaped, or you’re simply short on time, a professional fitter can save the day. Specialists like Kelly’s Blinds know exactly how to measure and install Venetian blinds so they work flawlessly and look the part from day one.
What to do next
Once fitted, Venetian blinds are practical, stylish, and easy to maintain. If you’d like to refresh your space with a new set, explore the wide range at Venetian Blinds, where you’ll find aluminium, wooden, and faux wood options in a variety of colours and finishes.
FAQ – How to Fit Venetian Blinds?
Can Venetian blinds be top-fixed inside a recess?
Yes – they can be top-fixed into the lintel or face-fixed onto the sides or wall, depending on your preference.
Why do my Venetian blinds look uneven?
It’s usually due to one bracket sitting higher than the other. Adjust the bracket positions to correct this.
Do Venetian blinds come with child safety fittings?
Yes – corded versions are supplied with safety cleats or tensioners, which should always be fitted.


