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Maximise your green energy output and protect your solar investment with premium solar panel cleaning from A Bligh Exterior Cleaning Ltd. Serving residential and commercial solar arrays across Portsmouth, our fully certified team utilizes advanced pure-water technology to safely eliminate performance-killing grime, bird droppings, and coastal salt film.
We’ll respond within a few hours.
£5m public liability cover for total peace of mind.
Safe, biodegradable methods that protect your property.
IPAF, PASMA & City & Guilds trained professionals.
Turn up on time, every time — that's our promise.
Solar panels are a fantastic, cost-effective way to generate clean energy, but they require regular maintenance to operate at peak efficiency. A common misconception is that rainfall alone is enough to keep solar cells clean. In reality, rain often carries atmospheric dust and leaves behind a thin, murky residue. Over time, your solar array naturally accumulates a heavy glaze of traffic pollution, bird droppings, windblown dust, moss spores, and—particularly in our coastal Portsmouth environment—a sticky layer of salt film. This combined layer of debris creates an artificial barrier that physically blocks sunlight from reaching the photovoltaic (PV) cells, directly cutting your energy production and costing you money on your electricity bills.
When solar panels become dirty, they suffer from what the industry calls “soiling loss”—a gradual, unseen drop in energy efficiency that can reduce your system’s financial returns by up to 15% to 25%.
Even a thin layer of dust or coastal salt crust acts like a permanent shadow over your solar panels, severely limiting their ability to generate electricity. Our specialized pure-water cleaning instantly removes this microscopic barrier, immediately bouncing your system back to its optimum generation capacity.
Bird droppings are highly acidic and completely opaque. When left on a solar panel, they create a localized obstruction called a “hot-spot.” Because the blocked cell cannot generate power but the surrounding cells do, it overheats structurally, which can permanently crack the glass panel or cause internal circuit failures.
Attempting to clean solar panels with standard tap water leaves behind a hazy layer of white calcium scale, while using chemical soaps or hard brushes can permanently scratch the sensitive anti-reflective glass surface. Our certified, pure-water process avoids all scratching and strictly protects your manufacturer’s warranty.
At A Bligh Exterior Cleaning Ltd, our mission is to provide top-tier exterior cleaning services that enhance the beauty and value of properties in Portsmouth. We’re committed to exceptional results with every job — using eco-friendly, safe methods that protect both your property and the environment.
Years of trusted service in Hampshire
When you hire A Bligh, you’re getting more than a clean — you’re getting a team that treats your property like their own.
Born and based in Portsmouth — we know the local properties, weather and challenges inside out.
Pure-water systems for glass, soft-wash for delicate surfaces, and high-pressure for hard stone.
PureSeal approved applicator plus IPAF, PASMA and City & Guilds certifications.
No hidden charges. What we quote is what you pay — every single time.
Have a question about our professional cleaning services? Below, we have compiled answers to the most common queries we receive from homeowners and businesses across Portsmouth.
Tap water contains dissolved minerals like calcium that leave behind a cloudy white scale when they dry, which actually blocks sunlight. Household soaps also leave a sticky chemical film behind that acts like glue, attracting airborne dust and traffic pollution much faster. We use strictly 100% de-ionised pure water, which cleans deeply and dries perfectly clear without any sticky residues.
Depending on your property’s location, dirty solar panels typically lose between 10% and 25% of their total energy-generating efficiency. If your property is near a main road (heavy traffic film), under a flight path, surrounded by trees, or close to the Portsmouth coast (sticky salt air), the power drop can be even more severe.
No, absolutely not. Solar panel manufacturers strictly forbid the use of high-pressure jet washers. High water pressure can easily shatter the tempered glass sheet, force water past the protective rubber weather-seals, or damage the delicate silicon cells underneath. We rely entirely on high-reach water-fed poles fitted with specialized, super-soft nylon cleaning brushes.
For optimal energy generation and system health, we generally recommend having your solar panels professionally cleaned once or twice a year. A springtime clean is highly effective for removing winter soot and preparing your array for peak summer generation, while an autumn clean clears away pollen, dust, and heavy bird droppings.
Safety is our top priority. Our carbon-fibre reach-and-wash poles allow us to clean the vast majority of residential solar arrays up to 40 or 50 feet high completely from the safety of the ground. For large-scale commercial rooftop arrays or complex building angles, our technicians hold full IPAF and PASMA qualifications to safely use cherry pickers or scaffold towers.
