Dirty solar panels can lose up to 25% of their generating capacity. Our specialist pure water cleaning service restores maximum performance without voiding your manufacturer warranty.
Solar panels accumulate bird droppings, algae, dust, pollen and airborne debris that significantly reduce their ability to generate electricity. Regular professional cleaning is the single most effective maintenance action you can take to protect your investment and maximise returns. Access Window Cleaning provides specialist solar panel cleaning across the West Midlands using deionised pure water — the only cleaning method approved by most panel manufacturers.
We use only fully deionised water to clean solar panels. No detergents or chemicals that could leave residue, damage coatings or void your warranty.
Deionised pure water cleaning is the method recommended by leading panel manufacturers including SunPower, LG, Panasonic and most warranty policies.
Studies show soiled panels generate up to 25% less electricity. A professional clean can quickly recover lost output, often paying for itself within weeks.
We clean with soft brushes and pure water at low pressure. No high-pressure jets that could damage cell coatings, frame seals or junction boxes.
From a 10-panel domestic array to a large commercial or agricultural ground-mount system — we have the equipment to clean any installation safely.
Keep your solar panels operating at peak performance year-round with our scheduled maintenance and cleaning service.
See what we achieve for our domestic and commercial clients across Redditch.
We quote based on panel count, roof pitch and access requirements. Pricing is transparent with no hidden extras.
We use appropriate access equipment — extended water-fed poles, scaffolding or MEWPS — to reach panels safely without walking on your roof.
Soft brushes and deionised water remove bird droppings, algae, pollen and dust without scratching or leaving residue.
We recommend checking your inverter output in the days after cleaning to confirm the performance improvement.
We quote based on panel count, roof pitch and access requirements. Pricing is transparent with no hidden extras.
We use appropriate access equipment — extended water-fed poles, scaffolding or MEWPS — to reach panels safely without walking on your roof.
Soft brushes and deionised water remove bird droppings, algae, pollen and dust without scratching or leaving residue.
We recommend checking your inverter output in the days after cleaning to confirm the performance improvement.
Research varies, but soiling typically causes a 5–25% reduction in output depending on the degree of contamination. Bird droppings on even one cell can cause disproportionate output losses due to hotspotting.
Using approved methods — pure water with no detergents and no high pressure — will not void your warranty. In fact, most manufacturers require regular cleaning as a warranty condition.
Once or twice a year is sufficient for most domestic installations. Arrays in agricultural areas, near motorways or under trees may benefit from more frequent cleaning.
No. We use extended water-fed poles to clean panels from the gutter line or from appropriate access equipment — we never walk on tiles or panels.
Yes. We can install stainless steel mesh guarding around the panel perimeter to prevent pigeons and other birds nesting underneath. Ask for a combined quote.
Redditch, Bromsgrove, Warwick, Leamington Spa, Solihull, Stratford-upon-Avon, Alvechurch, Studley, Henley-in-Arden, Droitwich, Wythall, Hagley and surrounding areas.
Tell us about your property and we’ll send back an accurate, no-obligation quote.
