Duncraig is a classic Perth family suburb, with most of its housing stock dating from the 1970s and 1980s. The original estate layout has matured with the street trees and established gardens that go with it, and the drainage profile reflects forty plus years of normal household use. Drains Plus is a Perth drainage specialist that has cleared more than 20,000 drains across the metro. This page covers what we typically see in Duncraig and how we approach the work.
Duncraig sits within the City of Joondalup, which manages stormwater and kerbside drainage. Most of the housing stock dates from the mid 1970s through to the late 1980s, with continuing infill replacing original homes through to today. Soils through Duncraig are predominantly Spearwood sand. The original sewer infrastructure on most homes is early generation PVC, with some clay in the earliest builds and on commercial properties. Stormwater drainage on private property is overwhelmingly PVC. Street trees, including jacaranda, gum and peppermint, are well established and a regular source of root activity around the drain runs.
Root intrusion is the most common single problem we deal with in Duncraig. The original PVC lines from the 1970s and 1980s have had decades to settle, and where joints have moved slightly, roots have found their way in. Recurring blockages at the same fixture are the usual sign. We also see lines that have been crushed or compromised by later works, particularly pool installations and major paved area additions. On the stormwater side, gully blockages from leaves and debris are the most common call in autumn and after heavy rain. CCTV inspection is standard practice on any recurring issue. For clear cut root intrusion in an otherwise sound line, jetting followed by relining at the affected sections is usually the right long term answer. For lines that have been crushed or significantly damaged, targeted excavation and replacement is the alternative.
Drains Plus operates from Greenwood, a short drive from Duncraig. For most call outs we can have a plumber on site the same day, and emergency call outs are covered around the clock. We are a single location business with a single Google profile, so when you book through us you are dealing directly with the team that will arrive at your address. Most blocked drain work is covered by our fixed price guarantee, and a free plumbing health check is included on every job. If we cannot clear the drain, our service is free.
We service Duncraig as part of our wider coverage of the Perth northern suburbs. Nearby suburbs we cover include:
If you are based outside these areas, our full service area covers the Perth northern suburbs across four local government areas.
Most original 1970s Duncraig homes were built with early generation PVC sewer lines, with stormwater also in PVC. The material is durable, but joints have had decades to move slightly with normal ground settlement, and any movement is an opportunity for tree roots to enter. We see this pattern routinely in the suburb.
Repeated blockages at the same location almost always mean an underlying problem in the line itself. The most common cause in Duncraig is root intrusion through a joint that has moved. Clearing resolves the immediate symptom but not the root entry point, which is why the problem returns. A CCTV inspection identifies the exact location and from there we can talk about whether relining or a targeted repair is the right answer.
In most cases yes. Pipe relining is a no dig solution that installs a new liner inside the existing pipe and cures it in place. For homes with pools, paving, decking or established landscaping over the drain runs, relining avoids the disruption of excavation. We use CCTV to confirm the existing line is suitable for relining before recommending it.
The City of Joondalup manages the public stormwater network, including the gully inlets at the kerb and the connection out to the main. Anything within your property boundary is the owner’s responsibility. If a CCTV inspection shows the problem sits past the boundary, we tell you and advise on what to report to council.
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