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Warranties & Paperwork: What to Keep Safe

Keep hold of your MCS certificate, DNO approval, warranties, and handover pack. Together, they protect your solar system, unlock payments, and prove compliance for years to come.

 

Why This Matters

Your solar installation comes with a mix of warranties, certificates, and approvals. Keeping them safe is essential — they prove quality, unlock export payments, and protect your investment if something goes wrong.

Key Documents You’ll Receive

  1. MCS Certificate

    • Proof your system meets UK installation standards.

    • Required for Smart Export Guarantee (SEG) tariffs.

  2. DNO Approval

    • Permission from your local Distribution Network Operator to connect to the grid.

    • Confirms your export limit.

  3. Product Warranties

    • Solar Panels – Usually 20–25 years (product & performance).

    • Inverter – Typically 5–12 years, extendable.

    • Battery – Often 10 years or a cycle count limit.

  4. Workmanship Warranty

    • Covers the quality of installation (normally 2–10 years).

    • Apex Doma provides an insurance-backed guarantee, so you’re protected even if the installer is no longer trading.

  5. Insurance-Backed Warranty Certificate

    • Independent cover for workmanship.

    • Essential for long-term peace of mind.

  6. O&M Manual / Handover Pack

    • Your “system guidebook.”

    • Includes key system details, diagrams, and contact info.

Where to Store Them

  • Digital Copies → Save in a dedicated folder (cloud storage recommended).

  • Paper Copies → Keep in a safe place, like a home file with property documents.

  • Backups → Share a copy with family or a solicitor if linked to property sale.

Why Keep Them Safe?

  • Export Payments – Energy suppliers will ask for MCS and DNO paperwork.

  • Warranty Claims – Manufacturers often request the original certificate.

  • Property Sale – Adds value and proves compliance for buyers.

  • Peace of Mind – Quick access if issues arise years down the line.

FAQs

❓ Can I get replacements if I lose them?
Yes. MCS and insurance-backed certificates can usually be reissued. Product warranties may be downloadable from the manufacturer.

❓ Do I need to show these documents regularly?
Not day-to-day, but keep them safe for future claims, tariff switches, or property sale.

❓ How long should I keep them?
For as long as your system is installed — ideally the lifetime of your panels (25+ years).