Trapped air is insulation. The pleated hexagonal cell is the best-insulating interior blind made — a real thermal buffer on new-estate glass, in both directions.
Single cells suit mild rooms; double cells do the serious thermal work — cooler summer rooms, warmer winter ones, and quieter too, since the cells absorb sound as well as heat. We keep the claims qualitative — genuine comfort and a lower heating/cooling load — rather than promising a specific percentage saving nobody can verify on your particular home.
It's the answer to the room above a Ruimsig double garage that's always the hottest or coldest in the house, and to any new-build bedroom facing a full wall of west glass.
02Cellular blinds can be operated top-down/bottom-up — privacy at the bottom, light and sky still coming in at the top. It's the right answer for street-facing new-estate windows and for any room overlooked by a neighbour's second storey.
03Light-filtering or blockout cell fabrics; blockout cells give bedrooms genuine darkness with the thermal bonus built in. Skylight and shaped-window versions exist too — the cell structure holds its shape even on an angle, which makes it one of the few honest options for gable glazing above double-volume entrance halls.
Per square metre, installed, as a guide. Manual cellular blinds run R1,500 to R2,800 per square metre, and the spread inside that band is wider than people expect: a single-cell light-filtering fabric sits at the bottom, while a double-cell blockout with side channels — the specification that genuinely changes a hot west bedroom — sits at the top.
With a motor fitted, the band becomes R3,000 to R4,800 for each square metre. Cellular blinds are often the ones worth automating, because they get specified for the high glass and skylights nobody can reach. Small openings carry a minimum charge, and the exact figure per opening is written into the quote after the free measure, before anything is ordered.
Mid-to-premium; double-cell and top-down/bottom-up options sit at the upper end. It earns its place on rooms with a real heating or cooling bill, not on every window in the house.
The room above the garage or a full west wall of glass runs hot or cold almost anywhere on this side of the West Rand — here's where the insulating cell earns its keep most often.
Insulating the room above the garage on golf-estate builds.
Read moreA thermal buffer for family bedrooms and home offices.
Read moreCellular cells on ridge-top rooms that swing hot and cold.
Read moreInsulation retrofitted into established, older-built homes.
Read moreFree in-home measure, written per-window quote, no pressure.