External venetian blinds for a Hermanus facade
Heat and glare stopped outside the glass, before the afternoon sun off Walker Bay ever reaches the room — the most effective solar control there is on a big cliff-facing wall.
Solar control that never gets inside the room
External venetians mount outside the glass on guided side rails, wide aluminium slats (typically 60–90mm) that tilt and raise on a motor with wind-sensor auto-retract fitted as standard — an exposed exterior blind has to protect itself when a gust or a front comes through. Because the heat is intercepted before it ever crosses the glass, the difference on a big north- or west-facing wall is dramatic in a way interior blinds, which only manage heat that’s already inside, can’t match.
They’re a premium, building-improvement spend rather than window dressing: a visual change to the facade (worth checking against any estate aesthetics committee before ordering), needing proper fixing points and ideally design-stage planning, though retrofit is possible on a suitable elevation. Not a DIY product, and not a budget one — but on the right wall, the most effective sun control this range offers.
Why it suits a Hermanus home specifically
Cliff-top glass in Voëlklip and along the Fernkloof-facing streets typically catches steady glare and heat off Walker Bay through the middle of the day rather than a single sunset hour, which is exactly the load external venetians are built to intercept before it becomes the room’s problem. Because the town takes both the south-easter and the north-wester full-on, we specify powder-coated aluminium and marine-grade fixings as standard on every install here, and we’re upfront that even that spec wants an occasional fresh-water rinse this close to the sea. On a heritage-adjacent facade near the Old Harbour, or on a gated Hemel-en-Aarde Ridge estate, we check the relevant approval before quoting — a visible exterior change needs that read first.
External venetians, answered
Do they need to retract in a south-easter?
Yes — wind-sensor auto-retract is fitted as standard, not an optional extra. An exposed external blind on a Hermanus facade needs to protect itself the moment a gust or a front builds, in either wind direction.
Will this need heritage or estate approval?
Possibly. Anything visible on a facade near the Old Harbour precinct, or on a gated Hemel-en-Aarde Ridge estate, is worth checking against the relevant approval process first. We flag this at the free measure before we quote.
Can these be retrofitted, or only specified at design stage?
Retrofit is possible on a suitable elevation, though design-stage planning gives cleaner fixing points on a new build or major renovation. We assess your specific wall at the free measure.
Let’s look at your facade properly.
Free in-home measure, a written quote, and hardware specified for both of Hermanus’s winds.
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