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Bedroom with white PVC shutters beside a sliding door opening to a pool and sea view, Custom Blinds Shutters & Awnings

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Best Blinds and Shutters for Summer

Dazzling, beautiful, unforgiving. Stop the sun at the window and the bill follows.

Summer guideGarden Route and nationwide
Subject
Summer shading
Reviewed by
The Custom Blinds Shutters & Awnings team
Updated
5 September 2026
Reading time
3 minutes

Which blinds and shutters keep a South African home coolest in summer?

  1. Honeycomb blinds: the cell structure traps air and cuts heat transfer, for bedrooms, studies and west-facing windows
  2. Sheer roller blinds: filter UV and soften light without losing the view, for living rooms and kitchens
  3. Double roller (zebra) blinds: sheer by day, blockout by night, in one cassette
  4. Interior shutters: louvres set airflow and light, and last in coastal homes; Garden Route only
  5. Awnings and outdoor blinds stop heat before it reaches the glass; lighter fabric colours reflect more of it
10,000+Installations across South Africa
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Why the window: blinds and shutters for summer heat

According to the City Energy building design guide, shading is one of the simplest and most cost-effective ways to keep interiors cool. Blinds work at the source: they block or filter sunlight before it turns to heat, and they keep UV off furniture, floors and art.

Four blinds and shutters that perform in summer

Summer blinds and shutters compared

Main benefit and summer performance, side by side.

PerformanceHoneycombSheer rollerDouble rollerInterior shutters
Summer performanceExcellentGoodGoodModerate
Main benefitInsulationUV and glare filteringDay and night flexibilityLight and airflow
Best useBedrooms, officesLiving areasLounges, studiesCoastal homes

Dots on the first row show summer heat performance. The other rows carry the main benefit and best use as words.

Getting more from summer blinds and shutters

Small habits, real degrees.

  1. Close east earlyBlock the morning sun before it warms the room
  2. Shade west before the peakThe afternoon is the hottest sun of the South African day
  3. Fit snuglyA close inside mount leaves warm air nowhere to travel around the edges
  4. LayerA sheer curtain with a blockout blind adds insulation and softness
  5. Lighter coloursLighter fabrics reflect heat; darker ones absorb it

05   Outside counts too

Stop the heat before the glass.

Awnings and outdoor blinds shade the window from outside, so the heat never enters. Exterior shading, reflective films and landscaping all help, and City Energy notes that integrated strategies work best in South Africa’s climate. On the Garden Route, Custom Blinds Shutters & Awnings manufactures and fits awnings and outdoor blinds; Duncan measures, we manufacture to spec and our installation team fits.

Garden RouteWhatsApp Duncan on 079 523 5407 for shutters, awnings and outdoor blinds.

Buy online:

Honeycomb blinds·Sheer rollers·Double rollers

Questions buyers ask about blinds and shutters for summer

Which blinds are best for keeping a South African home cool?

Honeycomb for insulation, sheer and sunscreen rollers for glare, double rollers for day-and-night flexibility, and shutters for airflow. Custom Blinds Shutters & Awnings supplies the blinds nationwide and fits shutters and awnings on the Garden Route.

Do lighter blind colours help in summer?

Yes. Lighter fabrics reflect more heat; darker ones absorb it.

What else helps besides blinds?

Awnings, outdoor blinds and integrated shading strategies reduce solar gain before it reaches the glass.

Are shutters good for summer?

Yes for airflow and light control, and they last in coastal homes. On heat performance alone, honeycomb blinds do more.

Further reading on blinds and shutters for summer

Content reviewed by the Custom Blinds Shutters & Awnings team. Visit the online shop for current pricing.

Custom Blinds Shutters & Awnings | South Africa’s trusted blinds, shutters and awnings specialists since 2010.

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