Exterior cleaning in Davidson

A 1970s and 1980s planned suburb of brick and tile family homes on large blocks that back directly onto Garigal National Park, with pools, timber decks and long sloping driveways. Most of what we clean here dates from 1970s to 1980s with recent rebuilds, on sandstone slopes falling to Middle Harbour Creek, national park on the western boundary.

We work around Davidson Park and Middle Harbour Creek, Garigal National Park, Lionel Watts Reserve and Davidson High School, on streets such as Kambora Avenue, Narelle Avenue, Glendale Avenue, Walana Crescent and Kanimbla Crescent. The defining exterior problem is roofs and gutters heavy with leaf, bark and gumnuts, moss on the shaded southern driveways, and lichen on timber decks and brick paving under the canopy.

Terrey Hills, Duffys Forest, Belrose, Davidson, Frenchs Forest, Ingleside and the plateaus behind the beaches back onto Garigal and Ku-ring-gai Chase national parks. Salt is minor; leaf litter, shade, bushfire-prone-land obligations and acreage-scale hard surfaces decide the work.

Field note from Davidson. Davidson's park-edge homes get a leaf load that fills a gutter in a season; we clear them in September for the fire season and tell owners which downpipes were blocked, because on these blocks a blocked downpipe is how water gets into the eaves. Nathan G, Founder

Planning and site constraints we check in Davidson:

• Bushfire-prone land along the entire Garigal boundary
• Middle Harbour Creek catchment

Run-off. Anything washed off a Davidson property ends up in Middle Harbour Creek unless it is stopped at the kerb. Northern Beaches Council enforces the NSW EPA rule that wash water, detergent and sediment stay out of stormwater, so we bund drains, capture run-off and vacuum-recover on sealed or commercial sites. More in our stormwater guide.