Solar panel maintenance & servicing

An annual inspection suits most domestic systems; commercial arrays typically run planned cycles aligned with insurer and O&M requirements. Monitoring runs continuously either way, which is what catches the expensive faults early.

Mostly, you let the rain do it: panels are self-cleaning at typical UK tilts. Cleaning earns its cost where soiling is heavy, near farms, main roads or the coast. Never pressure-wash panels or walk a roof; where cleaning is worthwhile we arrange it safely with the right equipment.

The usual suspects, in order: a tripped or failed inverter, a faulty string connection, new shading (trees grow), or soiling. Monitoring data narrows it down before we ever climb a ladder, so diagnosis is quick and the fix is usually same-visit.

Yes. We inspect, monitor and maintain arrays installed by other companies, including where the original installer has ceased trading. First step is a condition survey so you know exactly what you have and what it should be producing.

Professional solar panel cleaning in the UK typically costs £4 to £15 per panel depending on access and system size, so a 12-panel home array runs roughly £60 to £150 a visit. Before you book anyone, check it is worth it: at typical UK tilts rain keeps panels close to peak output, and monitoring data will show whether soiling is actually costing you generation. We advise honestly and arrange safe cleaning only where the numbers justify it.

Yes: inverter faults and replacements, string and wiring faults, damaged panels, pigeon-proofing and monitoring dropouts, for systems we installed and systems we did not. Most faults are diagnosed from monitoring data before we arrive, so repairs are usually completed in a single visit.

Manufacturer warranties on panels and inverters generally require evidence of proper installation and sensible upkeep. Documented servicing protects those claims, and our reports give you the paper trail insurers and warranty desks ask for.