More homes and businesses in Northampton are turning to solar energy to cut bills and reduce their carbon footprint. But one thing many owners discover too late is that solar panels don’t stay “self-cleaning” forever. Dust, pollution, bird mess and traffic film slowly build up — and the result is a steady drop in energy production.
Studies show that dirty panels can lose anywhere from 5% to 30% efficiency, depending on location and weather. In a town like Northampton — with busy main roads, construction dust, and high bird activity around estates and industrial estates — regular cleaning isn’t just cosmetic, it’s essential maintenance.
Why Northampton Panels Get Dirty Faster
- Traffic & urban dust: Northampton’s main routes like the A45, A43 and M1 create constant airborne particulates.
- Housing estates with birds & nesting spots: Droppings not only block light but can cause permanent “hot spots”.
- Tree pollen & sap: Areas like Kingsthorpe, Weston Favell and Abington often deal with sticky film build-up.
- Construction dust: Ongoing development around Brackmills, Sixfields and Upton adds fine debris to rooftops.
DIY vs Professional Cleaning — What You Need to Know
DIY cleaning may sound appealing, but using tap water, detergents or household brushes can void warranties and scratch the glass. There is also the safety risk of working at height with no proper equipment.
Professional cleaning uses:
- Purified (deionised) water that dries spot-free
- Soft, non-abrasive brushes that protect the panel surface
- Telescopic poles or safe roof access — no walking on tiles
- Insurance + risk assessment for domestic & commercial sites
How Often Should Panels Be Cleaned?
For most Northampton properties, the ideal schedule is:
- Every 6–12 months for domestic homes
- Every 3–6 months for commercial, roadside or industrial roofs
Systems with bird issues, trees or farmland nearby may need more frequent cleans.
Book a Local Specialist
If your inverter data shows a drop in kWh or you can visibly see grime, it’s time to act. You can get a free quote for solar panel cleaning in Northampton — including a full access check, eco-friendly wash and before/after performance report.
Don’t Let Dirt Steal Your Energy
Solar panels can only turn sunlight into power if the glass is clean enough to let it through. A simple maintenance visit can instantly restore output, extend system life, and protect your investment.
Your panels were designed to collect light — not dust.