Roof Washing Henderson

Moss and lichen on a Henderson roof are more than a cosmetic problem. They hold moisture against the surface, which speeds up erosion of concrete tiles and keeps steel coatings wet for long periods. We kill the growth first so it can be removed gently, and some lichen residue is best left to weather away after treatment.

Henderson roof cleaning beside the creeks and the ranges

Henderson sits where five streams, including the Ōpanuku, Oratia and Swanson, meet at Henderson Creek, and sections near the creek and its tributaries can stay damp and shaded for much of the year. With high rainfall coming off the ranges and plenty of overhanging trees, moss, lichen and blocked spouting are the main reasons people call us. We treat the growth first, give it time to die, then wash it off with low pressure.

The roofs underneath are mostly post-war. Corrugated iron needs a gentle clean around fixings and laps, where it usually fails first. Concrete tiles are porous and the growth roots into them, so the treatment matters more than the washing. Decramastic from the 1960s and 1970s is a caution point, because some has asbestos in its coating, so we test before any cleaning. Concrete tile roofs here often have tired ridge bedding too, and we photograph loose ridge caps while we are up there.

With so many streams nearby, runoff control is not optional. Washing waste is captured and kept out of the stormwater drains, which carry it to the creeks. Commercial buildings around the town centre and Lincoln Road have low-pitch longrun roofs and box gutters, where cleaning means clearing outlets and washing the sheltered areas that material warranties call for. We plan those jobs around the working day. At home, trimming branches that touch the roof before our visit helps the treatment reach the whole surface.

Local tip: If your Henderson home backs onto a stream reserve, plan for spouting and valley clears more than once a year, since leaf fall and shade there are heavy.

Roof Washing in Henderson: Local Conditions

High rainfall, overhanging native trees and shaded roof faces make moss, lichen and leaf build-up the main roof cleaning job in West Auckland. On tank-water properties in Titirangi and around Kumeū, we isolate the tank supply before any treatment or washing starts.

Large steel roofs on industrial buildings have plenty of sheltered areas that rain does not wash, and keeping material warranties valid depends on cleaning them.

Homes in Henderson

Henderson's post-war suburban homes were mostly built with corrugated iron or concrete tile roofs, and the 1960s and 1970s added plenty of decramastic tiles. All three are common re-roofs now. Old iron often fails at fixings and laps first, concrete tiles at their ridge bedding and underlay, and decramastic as its chip falls away and the steel rusts. Some older decramastic has asbestos in its coating, so we test before removal. Commercial buildings around the town centre and Lincoln Road bring low-pitch longrun roofs and box gutters.

From streets near Henderson Creek to the edges of Henderson, every roof washing job is quoted in writing before work starts. See our roofers in Henderson page for everything else we do here.

How We Handle Roof Washing in Henderson

We wash with low pressure and a soft brush, paying attention to valleys, laps, fixings and the sheltered areas rain never reaches. Debris is cleared from the gutters and taken away rather than left in the drains.

Pricing: every roof gets a free on-site measure and an itemised written quote, with a fixed price agreed before any work starts.

Roof Washing Jobs We Do in Henderson

Valley and gutter clearing
Roof debris removal
Steel roof washing
Salt washing of sheltered areas
Membrane roof cleaning