Patio Cleaning Belfast

Diamond Property Maintenance NI provides professional patio cleaning across Belfast and Northern Ireland, working on concrete slabs, Indian sandstone, limestone, slate, porcelain, brick pavers and wooden decking. A patio is where surface knowledge really matters. Indian sandstone and limestone are soft and porous, porcelain is dense and needs a different touch, and slate can flake if treated roughly. We identify the material before we choose the pressure and the products.

The biggest patio problem in Northern Ireland is black spot lichen, those stubborn dark marks that bond hard to natural stone and shrug off a standard wash. We treat black spot and lichen with the right products and dwell time rather than trying to grind it off, which would scar the stone. We also tackle rust marks from metal furniture and garden ornaments, and lift the general algae and grime that dull a patio.

How much does patio cleaning cost in Belfast? Patio cleaning runs from £150 to £400, set by the size of the area, the material and how much black spot, lichen and staining has taken hold. Natural stone with heavy black spot takes more time and treatment than plain concrete slabs, and the quote reflects that.

Why do Belfast patios get so much black spot? Our damp, mild climate is ideal for lichen and algae, and patios sit flat, hold water and often catch shade from walls, fences and planting. That combination lets black spot dig in. Regular cleaning stops it establishing and keeps the stone looking as it should.

After cleaning we can apply a sealer that typically lasts three to five years, deepening the colour of natural stone and making future cleans easier. Every patio job is covered by our £10M public liability insurance, backed by 30+ years of local experience.