Walls & Glass · Elevations & glazing
Solar Panel Cleaning
- Roof-mounted photovoltaic arrays
- In-roof (integrated) panels
- Solar thermal panels
- Ground-mounted arrays
- Commercial roof arrays
- Skylights and roof glazing
About this service
Solar panels are sold as self-cleaning, and rain does rinse loose dust. It does nothing for baked-on bird droppings, tree pollen, lichen and the film of traffic grime that builds up along the lower edge of every panel. All of it shades the cells beneath it, and shaded cells drag down the output of the whole string.
MC6 cleans panels with reverse-osmosis pure water and a soft brush — the method panel manufacturers specify. No detergents that leave a film or void a warranty, no pressure washers that stress the seals, and no walking on the array.
Part of Walls & Glass. Low-pressure biocide treatments for render and brickwork, and reverse-osmosis pure water for windows, conservatories and solar panels — a spot-free finish with no ladders on your walls.
What is included
- Every panel brushed and rinsed with pure water
- Frame edges and lower rails cleared of grime build-up
- Bird droppings and lichen spot-treated and removed
- Visual check for cracked glass, loose cables or nesting
- Before-and-after photographs
- Optional inverter output reading before and after
- City & Guilds Accredited
- Smartseal Registered Installer
- Fully Insured
Why it matters
Why dirty panels underperform
- 01
A single fouled cell can limit the output of an entire panel because cells are wired in series.
- 02
Lichen and bird droppings do not wash off in rain; they bake on in summer.
- 03
Pollen season and harvest dust in rural Hampshire coat panels in a matter of weeks.
- 04
Grime along the frame edge creates a permanent shaded strip on the bottom row of cells.
Drag the handle to compare a typical result.
How we do it
Our solar panels process
- 01
Assess
We check the roof access, panel mounting and any visible damage, and note the inverter reading if you would like a comparison.
- 02
Soften
Pure water is flooded across the panels to soften baked-on deposits before any brushing.
- 03
Brush and rinse
A soft brush works across each panel in the direction of the frame, followed by a full pure-water rinse.
- 04
Check
We photograph the array and let you know about anything that needs an electrician or installer.
State-of-the-art equipment
The kit that makes it safe and thorough
Pure-water system
Deionised water leaves nothing on the glass to shade the cells or attract dust.
Solar-specific brush heads
Extra-soft bristles designed for anti-reflective coated glass.
Telescopic poles and roof access kit
Ground-based cleaning where possible; safe roof access where not.
Benefits
What solar panels does for your property
More output
Clean glass lets the full available light reach the cells.
Warranty-safe
Manufacturer-approved method: no chemicals, no pressure, no abrasives.
Early fault spotting
We often spot cracked panels, loose cables or bird nests before they become a bigger problem.
Bundle with windows
Have the panels done on the same visit as a window clean for a lower combined price.
Honest expectations. We will always tell you before we start if a surface has damage that cleaning cannot fix — cracked tiles, failed pointing, UV-yellowed plastic — so there are no surprises on the day.
FAQs
Solar Panels questions
Once a year is typical, ideally in spring after the pollen and before the high-output summer months. Panels under trees or near a busy road benefit from twice a year.
Often booked together
Related services
Book solar panels across Hampshire & Surrey
Send your postcode and a photo or two. We will confirm the method, the price and the earliest date — usually within one working day.
- City & Guilds Accredited
- Smartseal Registered Installer
- Fully Insured