1 guide

Maintenance Guides

Every maintenance guide from the SMS engineering team — practical, factual, and from the people who fit the systems.

2026-03-20· 6 min read

How to Clean Solar Panels in the UK: A Practical Guide

When to clean, what equipment to use, what to avoid, and when to call a professional — the definitive UK guide from an MCS installer.

Where to go next

On the agricultural side, agricultural solar.
On commercial systems, commercial solar maintenance.
For business premises, solar for business premises.
If an existing system is producing less than it used to, a solar system health check.

Is your system worth upgrading? Find out free.

Tell us your postcode and what you have. A real engineer reviews it and comes back within one working day with an honest answer — including when the answer is "leave it alone".