Blocked Drains Cashmere

Cashmere rises up the north side of the Port Hills above the southern end of Colombo Street, and its elevated sections look out over the flat city. Homes were first built here in the 1890s, and the tram line that ran until 1954 helped the suburb build a reputation as one of the country's more well-to-do suburbs. Hillside properties sit on ground prone to rockfall, cliff collapse and landslips. One slow basin is an annoyance. When the toilet, the shower and the laundry tub all gurgle together, the main drain from the house is struggling. Call us and a licensed drainlayer comes to Cashmere with a machine sized for the job.

Cashmere hillside drains: steep runs, ground movement and Port Hills debris

Cashmere climbs the north side of the Port Hills, and on many sections the drain from the house runs a long way downhill before reaching the street. On a steep fall, water clears quickly but heavier waste can lag behind, especially at bends and where the pipe flattens near the bottom. Those spots fill gradually until a fixture inside starts to back up.

The earthquakes added another layer. Hundreds of Cashmere houses were damaged by rockfall, landslides and ground cracking, and a GNS report identified 36 areas of mass movement. A lateral on ground that crept or cracked can have a joint pulled apart or a section out of line, even where the house itself was repaired. After clearing, a camera run is the only way to know whether the pipe has moved.

Access is often the hardest part. Inspection points may be under decks, at the bottom of steps or down a bank, so we carry gear that can be walked in rather than relying on a vehicle at the gully. At the base of the hills, near the Ōpāwaho / Heathcote River, the flatter streets behave more like the rest of the city, where roots in older pipe are the usual cause. Leaves from established gardens and bush also wash into open gully traps after a storm. We finish with a flush from the top fixture down, which proves the whole run is clear rather than just the section nearest the street.

Local tip: On a steep Cashmere section, note where your drain inspection points are while the weather is good, because finding them on a wet bank in a hurry is harder.

Blocked Drains in Cashmere: Local Factors

On land that moved in 2010 and 2011 a drain can have sagged, cracked or pulled apart at a joint even where it was repaired afterwards. A dip holds waste and keeps blocking, so after clearing we look at the line on camera to see if it has settled.

For anything else, see our plumbers in Cashmere.

How We Handle Blocked Drains in Cashmere

We start at the lowest access point, usually the gully trap, and work back towards the house. That keeps the mess outside and lets us clear the line without lifting a toilet in your Cashmere home.

Pricing: quotes are free, and every job gets a fixed price before we start, so there are no surprises on the invoice.

Blocked Drains problem in Cashmere?Describe it in chat and we will tell you what it likely needs, what it costs and when we can get there.

Blocked Drains Jobs We Do in Cashmere

Slow shower drain
Blocked stormwater sump
Repeat blockage diagnosis
Overflowing gully trap
Blocked laundry tub