Every blind has to attach to something. The traditional way is to screw brackets into the frame or wall; the alternatives clip, grip or stick instead, so you can fit a blind without making a hole. Which you can use depends mostly on your window, so here is how the options compare.
Standard (drilled) fit
The brackets are screwed into the window frame, the wall above the opening, or the ceiling, and the blind clips into them. It is the most secure fixing, it works with any blind type and any frame material, and it carries the most weight - so for a large or heavy blind, or anything you want to last and run smoothly for years, drilling is the dependable choice. The only real downsides are that it makes permanent holes and needs a drill and a few minutes' work. You can drill for either a recess fit (inside the opening) or a face fit (over it).
No-drill options
There are three main ways to fit a blind without drilling, each suited to particular windows.
Perfect-fit is the neatest. A slim frame clips between the rubber bead and the glass of a uPVC window or door, holding the blind with no screws at all, flush to the glass and moving with the window. It is the standout no-drill choice - but only for uPVC frames with a suitable bead, not timber or metal.
Tension or spring brackets wedge a blind inside a recess by pressing against the two sides, so nothing is fixed to the frame. They suit lighter blinds in a snug, square recess, and they are popular in rented homes; they are less secure than screws and not for wide or heavy blinds.
Adhesive (stick-on) brackets use a strong pad to mount a light blind onto a clean, smooth surface. They avoid holes and are quick, but they hold the least weight and depend on the surface and the temperature, so they are best kept to small, light blinds.
When no-drill makes sense
- Rented homes, where you cannot or would rather not make holes.
- uPVC windows and doors, where drilling can risk the seal and perfect-fit clips on cleanly instead.
- Tiled or awkward surfaces you would rather not drill.
- A quick, reversible fit you may want to move or remove.
The trade-off in a line
Drilling is the most secure and the most universal, and it is the right call for heavy blinds and permanent homes. No-drill is kinder to frames and tenancies and perfect for uPVC, but it is limited by window type and the weight it can hold. Match the method to the window first, and let that guide the blind.