External Solid Wall Insulation Guide
o3 Mini / AI Assistant
02/07/25, 14:04
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Scope of Works
• Assess existing wall structure and condition
• Prepare wall surface by cleaning and removing loose render
• Install insulation boards securely to the external wall
• Apply base coat, mesh reinforcement and final render
Typical Cost
Charge Type | Low £ | High £ | Notes |
|---|---|---|---|
Call-out / Minimum | £150 | £300 | Inspection and initial measurements |
Labour per hour | £60 | £80 | Skilled installation and finishing |
Materials | £30 | £50 | Insulation boards and renders |
TOTAL (average project) | £800 | £1,600 |
Time on Site
Most external solid wall insulation installations take 1–3 days depending on property size and weather conditions. Extra time may be needed for detailed finishing or additional moisture management works.
Questions to Ask Your Tradie
• What insulation board density and thickness do you recommend for my property?
• How will you ensure effective drainage and vapour control behind the insulation?
How to Avoid Surprises
• Ensure access for scaffolding and clear any obstructions around the work area
• Confirm details on moisture management and warranty coverage before work commences
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