Updated October 2026
Thornlands is the newest built-up part of Redland City, the clearest new-estate block in the city: larger project homes, double garages, young families, and street trees that have not had time to become a problem. It is the opposite of Cleveland in almost every way that matters to a drain. Redlands Blocked Drains is a local referral service. We put you in touch with QBCC-licensed local drain plumbers who service Thornlands.
Why Thornlands drains block, and why it is not roots
The pipe under Thornlands is PVC with rubber-ringed joints. It does not weep at the joints the way old vitrified clay does, so there is nothing for a tree to find, and the trees are young anyway. That removes the single most common cause of blockages in the older bayside suburbs.
What is left is load. In a newer estate the blockage is almost always something that went down the drain:
- Wet wipes, including the ones sold as flushable. They do not break down and they knit together with everything else in the line.
- Cooking fat and oil, which cools and coats the pipe wall until the effective bore narrows.
- Nappies and sanitary items, the classic young-family blockage and reliably a hard, sudden one.
- Toys and objects, often needing the pan lifted to retrieve.
- Builders' debris, in the newest streets. Sand, mortar, render washings and offcuts left in the line during construction block drains months or years after handover, and this is worth raising if your house is very new.
The one pipe problem that does appear in new estates is fall. A section laid flat, or laid with a slight back-fall, holds water from the first day and catches solids every time. A camera finds it, and because the house is new it is worth checking whether it is a defect somebody else should be fixing.
The council's three-step test
Redland City Council publishes a short diagnostic that is worth running before calling anyone.
- One fixture slow and the rest of the house fine means the problem is most likely in your home's plumbing.
- The overflow relief gully overflowing while no water is being used on the property means the blockage is likely to be in the council's sewer main. Clear any obstruction, check the grate moves freely, then contact the council.
- An inspection opening that holds water or drains slowly while an indoor tap runs means contact the council. Dry means the house plumbing, so call a plumber.
The sewer mains in the sewered parts of the Redlands belong to Redland City Council, through its water and wastewater business, City Water (previously Redland Water). Your own drain line, from the house to the connection point, is yours. The full guide covers the reimbursement path where the main is the council's.
What clearing a blocked drain involves
Most Thornlands jobs are a straightforward clear. The licensed drain plumbers we work with will clear the line, and where the blockage has happened more than once, run a CCTV drain camera to check whether the pipe has a fall problem or whether it is purely a load problem. Jet blasting handles fat and wipes properly, cleaning the pipe wall rather than punching a hole through the blockage.
A standard clear typically costs $150 to $400, with most jobs around $280. A camera inspection runs $249 to $600, or $350 to $900 combined with jetting. If somebody has quoted you for relining on a house built in the last twenty years, ask to see the footage first, because relining is for damaged pipe and new PVC rarely qualifies. You get a price before any work starts.
Frequently asked questions
My house is eight years old. Can the drains really be blocked?
Easily. New pipe blocks for the same reasons as old pipe when the wrong things go down it, and builders' debris left in the line during construction shows up later surprisingly often.
Are flushable wipes actually a problem?
Yes. They pass through the pan and then sit in the line. They are one of the most common causes of blockages in newer estates, where there is no other obvious culprit.
Do I need a camera for a one-off blockage?
Usually not. If it has happened once with an obvious cause, a clear is enough. If it has happened twice, a camera stops you paying for the same clear repeatedly.
Could it be a building defect?
It can be. A section laid without enough fall, or debris left in the line, are both construction issues rather than usage issues. Camera footage is what turns that from an argument into a claim.