Which suburbs does this page cover?

Mirrabooka, Balga, Nollamara, Westminster, Yokine, Dianella, Menora and Coolbinia. Girrawheen and Marangaroo have their own page, and so do Morley, Osborne Park, Malaga, and Noranda and Beechboro. Mount Lawley and Inglewood are on our list. If you’re not sure, call (08) 6187 3999 with the street.

Our Yokine house is from the 1950s and the drains keep blocking. What’s going on?

In houses this age, roots getting into the older sewer pipe are a common cause, especially with big trees nearby. We clear it and tell you where the blockage was and what caused it, so you can decide whether that section needs repairing. Our tree roots page explains more.

We’re building townhouses on a Nollamara block. When should we talk to a plumber?

Before the slab goes in. Each dwelling needs its own sewer and water connections sorted, and Water Corporation requires the builder’s plumber to confirm where the sewer connection point is, and how deep, before work starts.

The water pressure in our older Dianella house is poor. What causes it?

In older homes it’s often galvanised supply pipe that has rusted up inside, a stop tap that isn’t fully open, or a failed pressure limiting valve. Do the meter test on our water pressure page first. If the street supply is fine, we’ll find where the flow is being lost.

How far is Mirrabooka from your base?

It’s a run south-west from Ellenbrook, not a cross-city trip. The ETA depends on where we are and the traffic when you ring, and we’ll give you a real time rather than a guess.

Inner north · City of Stirling

Plumber in Mirrabooka, Balga, Nollamara, Yokine and Dianella

The Mirrabooka Project of the early 1950s was meant to be a satellite city for up to 60,000 people, spread over Balga, Nollamara and a third suburb called Yirrigan. Balga’s streets and houses went in from the 1960s. Yirrigan stayed mostly bush until it was renamed Mirrabooka in 1980 and built up through the ’80s and ’90s. Further south, Yokine was almost fully built by the late 1970s.

The short answer

Yes, McDermott Plumbing covers Mirrabooka, Balga, Nollamara, Westminster, Yokine, Dianella, Menora and Coolbinia for licensed plumbing and gas: blocked drains and sewers, burst pipes and leaks, hot water repairs and replacements, leak detection and gas fitting, for owners, landlords and property managers. Call (08) 6187 3999 or text 0406 882 648. It’s a run south-west from our Ellenbrook base, and we’ll give you a real ETA when you ring.

Mirrabooka, Balga, Nollamara and Westminster

Balga took its name in 1954, from the Noongar word for the grass tree, and the State Housing Commission designed it with Nollamara and Westminster as part of the Mirrabooka Project. Westminster was the southern part of Balga until 1995, when residents asked for it to take the name of the original estate. Recent figures put about 44% of Westminster homes in private rental.

Mirrabooka itself is newer. Mirrabooka Square opened in 1979, and the suburb grew quickly in the 1980s and 1990s as bushland was subdivided, especially north of Yirrigan Drive. In Nollamara, older homes are being knocked down and replaced with townhouses, so an older house can sit next door to a brand-new pair of units.

Yokine, Dianella, Menora and Coolbinia

Before the Second World War, Yokine had one house. It boomed after the war: the streets near the golf course were mostly built by the early 1950s, the south filled in through the 1960s, and by the late 1970s the suburb was almost fully developed. Dianella, on the sandy soil of the Banksia sandplain, was formed in 1958 from several smaller localities and grew from the 1960s, north from Walter Road and Grand Promenade. Its last big estates, St Andrews, Montclair Rise and Dress Circle, were built in the early 2000s, so housing runs from modest post-war homes to large modern two-storeys.

Coolbinia and Menora were split off from Mount Lawley in 1953 and 1954. Menora has an older population than most of Perth: at the 2021 census its median age was 57 and about 41% of residents were over 65, partly because of the retirement villages there. If you’re arranging a plumber for a parent, tell us who to call and how we get in.

What we see across this patch

The age of the house and what’s been done to the block decide most of the jobs here:

1950s to ’70s sewer lines in Yokine, Balga and older Dianella. Water Corporation says homes over 15 years old are less likely to have PVC sewer pipe and more at risk from tree roots, and these are decades past that. Slow drains, gurgling toilets and an overflow relief gully that fills up are the warning signs.
Knock-down rebuilds and townhouse infill in Nollamara and nearby streets. Each new dwelling needs its sewer and water connections sorted, and Water Corporation requires the builder’s plumber to confirm the location and depth of the sewer connection point before work starts. Ask early so it doesn’t hold up the build.
Old galvanised or copper supply pipe in unrenovated post-war homes: low pressure, discoloured water after works in the street, and pinhole leaks.
Rentals, especially in Westminster, where the tenant reports the fault and the landlord or agent authorises the work. Our sewer blockage page explains who pays.
Two-storey homes in Dianella’s 2000s estates: upstairs bathroom leaks into the ceiling below, and hot water units from the original build that are now due for replacement.

Jobs we do around Mirrabooka and Dianella

Blocked drains, sewers, toilets and gullies
24/7 burst pipe and leak call-outs
Hot water repairs and replacements (gas, electric, solar and continuous flow)
Leak detection, water pressure and high water bill checks
Gas fitting and gas leak checks
Rental and strata maintenance, and bathroom renovations

Common questions

Which suburbs does this page cover?: Mirrabooka, Balga, Nollamara, Westminster, Yokine, Dianella, Menora and Coolbinia. Girrawheen and Marangaroo have their own page, and so do Morley, Osborne Park, Malaga, and Noranda and Beechboro. Mount Lawley and Inglewood are on our list. If you’re not sure, call (08) 6187 3999 with the street.
Our Yokine house is from the 1950s and the drains keep blocking. What’s going on?: In houses this age, roots getting into the older sewer pipe are a common cause, especially with big trees nearby. We clear it and tell you where the blockage was and what caused it, so you can decide whether that section needs repairing. Our tree roots page explains more.
We’re building townhouses on a Nollamara block. When should we talk to a plumber?: Before the slab goes in. Each dwelling needs its own sewer and water connections sorted, and Water Corporation requires the builder’s plumber to confirm where the sewer connection point is, and how deep, before work starts.
The water pressure in our older Dianella house is poor. What causes it?: In older homes it’s often galvanised supply pipe that has rusted up inside, a stop tap that isn’t fully open, or a failed pressure limiting valve. Do the meter test on our water pressure page first. If the street supply is fine, we’ll find where the flow is being lost.
How far is Mirrabooka from your base?: It’s a run south-west from Ellenbrook, not a cross-city trip. The ETA depends on where we are and the traffic when you ring, and we’ll give you a real time rather than a guess.

Nearby

Northern suburbs next to this one.

The jobs we get called for most here.

Official sources

Last updated 8 October 2026. General information only. Every property is different, so call us to talk about yours.

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Need a plumber now?

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