- Mon – Sat : 7:00 AM – 6:00 PM
Revive the beauty and safety of your outdoor living space with premium patio cleaning from A Bligh Exterior Cleaning Ltd. Serving homes and businesses across Portsmouth, our fully certified team utilizes advanced pressure washing and soft-washing techniques to completely eliminate slick algae, black spots, and deep-seated grime.
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.
At A Bligh Exterior Cleaning Ltd, we transform weathered, slippery, and unsightly patios back into pristine, safe outdoor environments you can enjoy with pride. Over time, external surfaces like Indian sandstone, limestone, porcelain, concrete flags, and block paving naturally fall victim to the British climate. Airborne spores, damp weather, and lack of sunlight cause a rapid accumulation of green algae, thick moss, and notoriously stubborn black lichen spots. Standard domestic pressure washers simply lack the power and temperature control to remove these deep-rooted organisms, often just wetting the surface without solving the underlying issue.
An neglected patio doesn’t just ruin the look of your garden; it quickly becomes a serious hazard. Slippery green algae turns natural stone into an absolute ice rink when wet, putting your family and guests at risk of falls.
When rainwater mixes with built-up surface algae and moss, it creates an invisible, slick film that is incredibly dangerous to walk on. Our deep-cleaning process completely eradicates this biological growth, instantly restoring traction and making your outdoor paths and entertainment areas safe to use year-round.
Those small, dark spots scattered across your stone aren’t dirt—they are black lichen, a hardy organism that anchors itself deep into the pores of the rock. Standard pressure washers cannot shift them. We utilize specialized PureSeal treatments that chemically dissolve these black spots, lifting them away entirely.
Using an aggressive domestic pressure washer too close to the stone can permanently etch lines into natural paving and completely blast away the sand or mortar jointing between slabs. Our certified team adjusts the water pressure and temperature precisely to protect your stone’s structural integrity.
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.
Yes, absolutely. Those black spots are lichen, which cannot be removed by water pressure alone. As a PureSeal Approved Applicator, we apply specialized, surface-safe treatments that break the bond of the lichen and dissolve it from the pores of the stone, completely restoring your sandstone to its natural appearance.
No, because we adjust our methods based on the condition of your patio. If your pointing is old or already crumbling, high pressure can dislodge it, which is why we utilize low-pressure soft-washing techniques on delicate or compromised joints to safely clean the stone without disrupting the layout.
Yes, we take extreme care to protect your garden. Before, during, and after applying any soft-wash treatments, we thoroughly pre-rinse and post-rinse all surrounding lawns, flowerbeds, and shrubs with clean water. This completely dilutes our eco-friendly solutions, ensuring your landscaping remains perfectly safe and healthy.
Because we don’t just blast away surface dirt but actually kill the organic spores at their root, your patio will stay clean significantly longer than a standard wash—typically up to 2 to 3 years depending on sunlight exposure and overhanging trees. We can also apply preventative treatments to keep it looking fresh for longer.
Yes, we clean all patio materials, including porcelain, concrete paving flags, limestone, slate, Yorkstone, and block paving. Each material requires a slightly different approach regarding pressure and chemical application, and our fully trained team knows exactly how to treat each type to achieve a flawless finish safely.
