The Sechura Perfect Fit Blind is a no-drill blind from Blinds By Post that clips into UPVC double-glazed windows via the window's rubber gasket seal. It is available in 34 colourways starting from £58.32, and it is notable for offering a parallel blockout sub-range - several colours appear in both a standard version and a blockout-rated version - which is an unusual and practical feature for a perfect-fit range. The colours themselves are warmer and bolder than the all-neutral palettes common in this format.

Who it suits

Perfect-fit blinds work on UPVC double-glazed windows with a compatible rubber gasket, making them the standard no-drill option for renters, new-build apartments, and anyone reluctant to fix conventional brackets into a UPVC frame. The Sechura's flush-to-glass fit also reduces the edge-leak that a standard inside-recess roller leaves around its sides - relevant if you are fitting in a bedroom and want as much darkness as possible.

The presence of dedicated blockout variants within the range is the Sechura's main differentiator. If you need reliable darkness for a bedroom - shift workers, young children, or anyone sensitive to early summer mornings - the blockout versions (Blockout Aubergine, Blockout Cloud, Blockout Coral, Blockout Jaffa, Blockout Jeans, Blockout Mint, Blockout Sunburst, Blockout Grain, and Blockout Pearl) are directly relevant. As always with the term, the retailer's "blockout" describes how the fabric performs; real-world darkness in the room also depends on how well the frame seats against the glass. Confirm this with Blinds By Post if complete darkness is essential.

For living rooms and bathrooms, the standard (non-blockout) finishes in lighter, brighter colours are a reasonable fit. Perfect-fit blinds are generally not recommended where the window is wooden or aluminium-framed, as the clip mechanism is designed for UPVC gaskets.

The colours

34 colours available

The palette divides clearly between the standard finishes and their blockout counterparts. The standard colourways - Apricot, Aubergine, Cloud, Coral, Jaffa, Jeans, Melon, Ash, and Steel - read warmer and more saturated than the muted neutral-led palettes typical of many roller ranges. Apricot, Coral, Jaffa, and Melon sit in the warm orange-to-peach register; Aubergine and Jeans provide depth at the darker end; Cloud, Ash, and Steel anchor the neutral tones.

The blockout counterparts largely mirror the standard finishes: Blockout Aubergine, Blockout Cloud, Blockout Coral, Blockout Jaffa, Blockout Jeans, and Blockout Mint follow the same naming logic, with Blockout Sunburst, Blockout Grain, and Blockout Pearl adding further options. Mint appears as a blockout variant without a standard counterpart in the range, and Grain and Pearl suggest texture-effect fabrics alongside the plain colours.

No variants are listed as carrying a price premium over the base from-price, though the blockout versions may be priced differently - confirm with the retailer.

Price by your dimensions

Made to measure from £58.32. Check Blinds By Post for the price at your exact window size.

At £58.32, the Sechura sits in the mid-range for perfect-fit blinds. The from-price covers the smallest available size; pricing scales with width and drop, and blockout variants may carry an uplift over the standard finishes. Check the specific combination you want before finalising.

How it compares

The Sechura's distinguishing feature - relative to most perfect-fit roller ranges - is the availability of blockout fabric in several colourways. Most perfect-fit ranges offer only light-filtering or dimout options; finding a blockout perfect-fit blind with real colour choice is less common. If your windows are UPVC and you need darkness, this range is worth considering alongside any alternative that offers blockout in a narrower colour selection.

Against a conventional inside-recess roller blind fitted with side channels, the Sechura will give comparable or slightly better edge-seal performance due to the frame sitting against the glass rather than within the recess. The trade-off is that perfect-fit sizing is less forgiving of measurement errors, and the format is limited to compatible UPVC windows.

If you want a broader colour palette or a pattern fabric, a conventionally fitted roller in a dimout or blackout fabric will offer more options. The Sechura earns its place specifically where no-drill installation and blockout performance both matter.