algae on house walls nz - Metro Exterior Cleaning Services

Why Exterior Walls Start Looking Dirty Faster in Winter in Auckland

Kulwinder Smagh2026-05-28T13:00:27+12:00May 28, 2026|

Many homeowners across Auckland notice their home’s exterior walls suddenly looking dirtier during winter. What often begins as: Light green staining Dark patches beneath gutters Small mould spots Dirty weatherboards …can quickly spread across large exterior areas throughout colder months. Winter creates ideal conditions for: Algae growth Mould contamination Moisture [...]

Why Homes in Tauranga Get Green Mould So Quickly

Kulwinder Smagh2026-05-12T09:50:46+12:00May 12, 2026|

Many homeowners in Tauranga notice green staining slowly appearing on their homes over time. It often starts as: Small green patches Dark streaking Discolouration on shaded walls …but gradually spreads across exterior surfaces if left untreated. This build-up is usually caused by: Algae Mould Mildew Organic moisture growth And Tauranga’s [...]