Torch-on waterproofing, locally
Waterproofing North Shore
Tree-lined streets are beautiful and brutal on flat roofs: leaf litter blocking box gutters, shade holding moisture on membranes, and big homes with big rooftop terraces above the main bedroom.
Waterproofing in North Shore
From Chatswood, St Leonards and North Sydney's strata towers to the family homes of Lane Cove, Killara, Pymble and Wahroonga, the North Shore mixes high-rise waterproofing with residential detail work, under a canopy that never stops dropping leaves.
Tree cover changes how roofs fail here. Blocked outlets pond water against membranes for weeks. Permanent shade means membranes stay damp, and moss and leaf acid work on anything under-specced. We design North Shore systems around it: generous falls, oversized and hand-detailed outlets with leaf guards, overflow provisions, and mineral-finished torch-on that tolerates sitting water far better than thin liquid systems.
Alongside residential terraces, planter boxes and pool-surround decks, we work with North Shore strata managers on tower podiums, plant decks and remedial programmes, staged, documented and warranted for 20+ years.
Whatever the building, the process is the same: an inspection with photos, a fixed itemised quote, two-layer torch-on installed to manufacturer spec, flood testing where it counts, and a warranty in writing. Not sure what you're looking at? Our guides on waterproofing costs and choosing a contractor are a good place to start.
Most-called-for here
What North Shore calls us about
Roof waterproofing
Leaking roof? We find the fault, fix the cause and membrane the roof so it never does it again.
See the work 02Balcony & podium waterproofing
Leaking balconies are Sydney's most common waterproofing failure, and the most expensive to ignore.
See the work 03Planter box waterproofing
A planter box is a rooftop garden bed with your ceiling underneath it: permanently wet soil, roots hunting for weaknesses, and fertiliser eating cheap membranes.
See the work 04Commercial & strata waterproofing
Warehouses, apartment blocks, car parks and plant decks.
See the workNo fluff. No buzzwords.
Asked locally
Our flat roof ponds water after rain. Is that a problem?
Ponding accelerates every failure mode a membrane has, and under North Shore tree cover it also grows moss that holds moisture permanently. Sometimes the fix is corrected falls in a new screed, sometimes added outlets, sometimes a membrane designed to tolerate it. We inspect first and give you the honest option, not the expensive default.
Can't afford for it to leak twice?
Call the blokes whose names are on the patch. Straight answers, a fixed quote and a warranty that means something.
