01
Before quotes
Gather twelve months of electricity use if available, identify your current tariff, note daytime occupancy, photograph likely roof constraints and list your priorities.
02
During comparison
Use the same questions for each installer. Record system size, components, estimated output, self-use, export assumption, scope exclusions, warranties and total price.
03
Before work starts
Confirm the final design, permissions and grid steps, safe access, payment milestones, insurance, timetable, handover documents and who owns each action.