Good trade decisions begin with a clear understanding of the problem, the result you need and the questions worth asking before work starts.
Start with the rooms
Bedrooms and frequently used living spaces often deliver the greatest benefit. Heat gain, glazing and room size affect the required output.
Think beyond cooling
Many modern systems can provide efficient heating as well as cooling, but performance depends on correct design and use.
Plan the installation
Consider indoor-unit position, outdoor-unit location, pipe routes, condensate drainage and visual impact before selecting equipment.
Keep photographs, quotations and important decisions together. A simple written record helps everyone work from the same scope.
When to seek specialist advice
If the issue affects electrical safety, cooling performance, refrigeration temperatures or solar equipment, arrange an assessment from the appropriate specialist rather than relying on a temporary fix.