Plumber Seven Hills, NSW 2147
Seven Hills is a working post-war suburb between Blacktown and Toongabbie, split by the railway and the Prospect Highway, with a sizeable industrial estate on the northern side and streets of 1950s to 70s homes on the south. It is flat clay country with a few rises toward the Hills, and Toongabbie Creek and Blacktown Creek carry its stormwater east. The M2 and M4 are both close, with Old Windsor Road and Prospect Highway running through.
What usually goes wrong in Seven Hills
- Earthenware sewer lines under 1950s fibro homes cracked by clay movement and blocked with liquidambar roots
- Copper pinhole leaks in 1960s and 70s brick veneer homes showing as damp walls or a warm floor
- Blocked trade waste drains, failed backflow devices and burst mains in the industrial estate off Station Road
- Electric hot water tanks in laundries and on outside walls failing after decades of summer heat
- Stormwater pooling and overflow gully surcharge on the low ground toward Toongabbie Creek and Blacktown Creek in storms
Local notes from the plumbers
Seven Hills went up in the 1950s and 60s on Cumberland Plain clay, and the plumbing has aged accordingly. The earthenware sewers under the fibro and brick veneer homes have cracked at the cement joints as the ground has moved, and the liquidambars and eucalypts that line the older streets have grown into them. A blockage that responds to a jetter but returns before the next bill is the sign of a broken run rather than a one-off. Brick veneer homes from the late 1960s and 70s on the southern side carry copper that has reached pinhole age, and the first sign is often a warm patch on a slab or a paint bubble on a wall. Hot water tanks in laundries and on outside walls are on their second or third replacement. The industrial estate off Station Road and Powers Road needs a different kind of plumber: trade waste, backflow devices, burst mains and hot water for factories. The suburb drains to Toongabbie Creek and Blacktown Creek, and the streets nearest them see stormwater pooling and overflow gullies surcharging after a summer storm.
Housing in Seven Hills
1950s and 60s fibro and brick veneer homes on flat blocks either side of the railway, 1970s brick homes toward the Prospect Highway and Lalor Park, a light industrial estate along Station Road and Powers Road, and small unit blocks and newer townhouses near the station and Seven Hills Plaza.
