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WARRANTY CLARITY

Workmanship and Product Warranties Explained

A long warranty headline can describe only one component. Establish who promises what, for how long, under which conditions and who pays for diagnosis, labour and access.

Reviewed 10 August 2026 · Independent household decision support

Knowledge Centre

Product warranty

Usually provided by the manufacturer for defects in named equipment. Registration, approved installation, servicing or operating conditions may apply.

Performance warranty

Often promises a minimum level of output or retained capacity over time. It is not necessarily a promise that the whole installation will achieve the sales forecast.

Workmanship warranty

Covers the installer’s work, such as mounting, wiring, pipework or commissioning. Ask whether it is insurance-backed if the installer ceases trading.

Evidence to keep

  • Final contract and specification
  • Commissioning and handover records
  • Serial numbers and registration confirmations
  • Warranty terms in force at purchase
  • Written answers and service records

Use this guide

Keep important answers in writing and make sure they appear in the final contract.

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QuoteGuardian content is general information—not financial, legal or engineering advice.

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