Solar maintenance & repair · London

How much does Solar maintenance & repair cost in London? (2026 price guide)

A routine solar panel inspection and clean typically costs £80-£150, an inverter fault diagnosis and repair usually runs £150-£350, and a full inverter replacement commonly costs £500-£1,200 depending on system size and inverter type.

Costs depend on system size, roof access and scaffolding needs, whether the fault lies with panels, wiring or the inverter, and whether the system is still under manufacturer warranty.

Check whether your original installer offers a maintenance contract, and always confirm a repair firm is MCS-certified before instructing work that might otherwise affect an existing warranty.

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