Check current status at the source
A logo or reference on a profile is a starting point, not the end of due diligence. Confirm relevant certification and registration using the issuing organisation’s current directory and ensure the legal entity matches your contract.
Ask for insurance and warranty detail
Confirm the name on the policy, cover type, policy dates, limits and who handles a claim. For workmanship cover, ask whether it is installer-backed, insurance-backed or subject to scheme conditions.
Keep a complete document trail
Save the proposal, survey, final design, generation estimate, equipment datasheets, contract, payment schedule, permissions and commissioning documents. Record any changes in writing.