Heat Reduction & Energy
Hot west-facing walls? Wall heat insulation and shading
Reflective exterior coatings, insulation and shading for walls that bake in the afternoon sun.
Rooms with a west-facing wall heat up all afternoon and stay warm into the night. The wall absorbs low, intense sun for hours.
RennovEN reduces that heat gain with a combination of reflective exterior coatings, insulation where practical, and shading for windows on that side.
Signs you need this
- One wall is hot to touch in the evening
- The west-side bedroom is the hottest
- Curtains are always drawn in the afternoon
- AC struggles in rooms on one side
The RennovEN promise
- 10-year warranty on all works
- Itemised pricing, approved before work begins
- One accountable team across every trade
- Residential specialists — homes only
Diagnosis
Why it happens
Low afternoon sun
West walls face the strongest sun at the hottest time of day.
Dark or dull façades
Darker colours absorb more heat.
Unshaded windows
Glass on the west side lets in direct heat.
Our method
How RennovEN does it
- 1
Survey
Identify exposed walls and windows.
- 2
Design
Coating, insulation and shading plan.
- 3
Prepare
Repair cracks and plaster.
- 4
Apply
Coatings, insulation and shading installed.
What’s included
- Heat exposure survey
- Crack and plaster repair
- Heat-reflective exterior coating
- Insulation where suitable
- Window shading options
What affects the cost
- Wall area and height
- Scaffolding needs
- Coating or insulation system
- Shading elements chosen
Every home is different, so we don’t publish rate cards. After a free inspection you get an itemised estimate, and you approve every line before work begins.
Get my itemised estimate10-year warranty
Coatings, insulation and shading we install are covered for 10 years against workmanship defects. Gradual colour change from weather is normal wear.
How our warranty worksFAQ
West Wall Heat Insulation: your questions
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