Drain Is Backing Up

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Licensed plumbers across Brisbane, Perth & Adelaide

G★★★★★
4.6 · 2,000+ Google reviews

A backing-up drain, especially sewage coming up through the lowest fixtures, means a blockage in the main line and is a health hazard, so it needs urgent attention. Our licensed plumbers answer the phone 24/7 and attend fast to clear the main line with drain machines and high-pressure jetting, then use a CCTV camera to find the cause, often tree roots, grease build-up, or a damaged pipe, and fix it so it does not recur, relining damaged pipes where needed. We clear backing-up drains across Brisbane, Perth and Adelaide, around the clock, with an upfront fixed price.

Why choose Same Day Trades when your drain backs up

We are local, licensed and insured plumbers who do this work every day, so we get it right the first time, with no mess and no surprises on the invoice.

Fully licensed and insured plumbers
Upfront fixed pricing before we start
Same-day service where we can, with 24/7 phones
Workmanship guaranteed and the job left clean
Servicing Brisbane, Perth and Adelaide

Whatever the job, you get honest advice and a tidy, professional result.

Why is my drain backing up?

A drain that backs up, pushing water or waste up out of a fixture instead of draining away, means there is a blockage downstream stopping the water flowing, so it comes back up through the lowest or nearest opening. A single backing-up fixture may have a local blockage, but when water backs up out of the shower, floor drain, toilet or bath, especially when you use another fixture, the blockage is usually in the main drain or sewer line that everything shares. Backing up is a clear sign of a significant blockage that needs clearing promptly, and if it is sewage, it is a health hazard requiring urgent attention. We clear backing-up drains across Brisbane, Perth and Adelaide.

A warning sign to act on

A backing-up drain is not a minor nuisance to ignore, it is a warning that your drainage is seriously obstructed and about to get worse. As the blockage builds, more water backs up, and what starts as a slow, gurgling drain can progress to water, or raw sewage, flooding your floor. Sewage backing up is both a health hazard and a damaging, unpleasant mess. Catching a backing-up drain early, while it is still just slow or occasionally backing up, means it can be cleared before it floods. This is why backing up should prompt a call to a plumber promptly, rather than waiting and hoping it clears itself, which it will not if there is a real blockage.

Common causes of a backing-up drain

When the main drain or sewer backs up, the usual causes are:

Tree roots growing into the pipe through cracks and joints, the most common cause of main-line blockages
Build-up of grease, wipes, sanitary items and debris flushed over time
A cracked, collapsed or sagging pipe trapping waste
Foreign objects lodged in the line
A blockage at the connection to the sewer main

Tree roots and pipe damage are frequent culprits for recurring backups, which is why we find the cause with a camera rather than just clearing and leaving it to happen again.

Multiple fixtures backing up

A key clue to where the blockage is lies in how many fixtures are affected. If just one fixture backs up, the blockage is usually local to that fixture or its branch. But if several fixtures back up together, or using one makes another gurgle or rise, for example flushing the toilet makes the shower back up, the blockage is in the shared main drain or sewer line that they all connect to. This is a more significant blockage requiring the main line to be cleared. We quickly establish whether you have a local or a main-line blockage from the pattern of symptoms, so we target the right part of the system and clear the actual cause.

Sewage backing up is urgent

If raw sewage is backing up into your shower, floor drains, toilet or bath, treat it as urgent, it is a serious health hazard as well as a damaging, unpleasant mess. Sewage carries bacteria and pathogens, and the longer it is left, the more it contaminates and the worse the clean-up. Avoid using water (which makes more back up), keep people and pets away from the affected area, and call us straight away, our phones are answered 24/7. We will clear the main line to stop the backup, then find the cause. A sewage backup is exactly the kind of emergency we prioritise, getting to you fast to resolve it safely.

How we clear a backing-up drain

We clear backing-up drains with professional equipment suited to main-line blockages. A drain machine (electric eel) cuts through and clears blockages and roots, while a high-pressure water jetter scours the pipe walls clean of grease, debris and roots, restoring full flow, far more thoroughly than just punching a hole through. For a main-line backup, we access the line through an inspection point or opening and clear it. Once the water is flowing again, we run a camera through to find what caused the blockage, so we can address the underlying problem rather than leaving it to back up again.

Finding the cause with a camera

Clearing the immediate backup gets your drains working again, but if there is an underlying cause, it will back up again unless that is addressed. This is why, after clearing, we run a CCTV camera through the line to see exactly what caused the blockage, tree roots, a grease build-up, a cracked or collapsed section, or a sagging pipe holding waste. The camera shows the type, extent and exact location of the problem. This lets us recommend the right fix to stop the backups recurring, rather than you facing the same emergency again in a few weeks or months. You can see the footage, so you understand the cause and the recommended repair.

Tree roots and recurring backups

If your drain keeps backing up despite being cleared, tree roots are the most likely cause. Roots grow into the main line through cracks and joints, catching waste and causing blockages, and clearing them restores flow only until they grow back. The lasting solution is to clear the roots by jetting, then seal the cracks and joints with no-dig pipe relining, so there is no gap for roots to re-enter and the backups stop for good. Repeatedly clearing a root-blocked drain is a false economy, each clear buys only a few months. We find the roots with a camera and fix the cause, so you are not facing the same backup again and again.

Damaged pipes and backups

Sometimes a backing-up drain is caused by a damaged pipe, a crack, a collapse, or a section that has sagged below the correct fall and now holds water and waste. These trap material and cause recurring blockages and backups that clearing alone will not permanently fix, because the damage keeps catching waste. A camera inspection reveals this damage and its exact location. Depending on the condition, we repair it with no-dig relining where the pipe is intact enough, or excavate and replace a collapsed or missing section. Addressing the damaged pipe is the only way to stop the backups for good, and we will advise honestly which repair your situation needs.

Preventing drains backing up

Many backups are preventable. Be careful what goes down your drains, no wipes (even flushable), sanitary items, fat, grease or food scraps, which build up and cause blockages. Use strainers and only flush the three Ps. If you have large trees near your drain lines, periodic camera checks and preventive jetting keep roots in check before they block the line. Addressing slow drains early, before they become a backup, also helps. For older properties, a camera inspection can reveal developing pipe problems. These measures reduce the chance of the serious, messy and sometimes hazardous backup that a blocked main line causes, catching issues while they are still minor.

How much does it cost?

The cost of clearing a backing-up drain depends on the location and severity of the blockage and the method needed, and whether there is an underlying cause like roots or a damaged pipe to address. Clearing the blockage to restore flow is the first step; a camera inspection to find the cause lets us give you an accurate price for any further repair. Emergency and after-hours call-outs cost more than a standard appointment. We give you an upfront fixed price, and if a lasting fix like relining is needed to stop recurrence, we will quote that clearly so you can choose between a temporary clear and a permanent solution.

24/7 emergency service

A backing-up drain, especially one pushing sewage into your home, is a genuine emergency and a health hazard, so we treat it as a priority. Our phones are answered 24 hours a day, and we can usually get a licensed plumber to you the same day, including after hours, across Brisbane, Perth and Adelaide. We arrive with drain machines, jetters and cameras to clear the main line, stop the backup, and find the cause in one visit, with an upfront price. If sewage is backing up, stop using water and call us straight away, and we will get to you as fast as possible to clear it and make it safe.

Licensed, guaranteed drain plumbers

Clearing a backing-up drain properly takes the right equipment, drain machines, jetters and cameras, and a licensed plumber who not only clears the blockage but finds and fixes the cause so it does not recur. Our team is fully licensed and insured, we clear the main line, inspect it with a camera, and reline or repair the underlying cause where needed, and we back our work. You get 24/7 emergency response, honest advice on a temporary clear versus a lasting fix, and upfront fixed pricing. For a plumber near you for a backing-up drain, we cover Brisbane, Perth and Adelaide.

Drain backing up FAQs

Why is my drain backing up?

A backing-up drain means a blockage in the main line is stopping water draining away, so it backs up out of the lowest fixtures like the shower, floor drain or toilet.

Is a backing-up drain an emergency?

It can be, especially if sewage is backing up, which is a health hazard. Our phones are answered 24/7 and we can usually attend the same day.

What causes the main drain to block?

Common causes are tree roots, a build-up of grease, wipes and debris, or a cracked, collapsed or sagging pipe. We find the cause with a camera.

Why do several drains back up at once?

When multiple fixtures back up together, the blockage is in the shared main line or sewer, not a single fixture. We clear the main line to fix it.

How do you clear a backing-up drain?

We clear the main line with a drain machine or high-pressure jetter, then inspect with a camera to find and fix the cause so it does not keep happening.

How do I stop it backing up again?

Clearing alone is temporary if there is an underlying cause like roots or a damaged pipe. We find and fix the cause, with relining where needed, to stop recurrence.

How much does it cost?

It depends on the blockage and the cause. A camera inspection lets us give an accurate upfront fixed price.

Do you service my area?

Yes, we clear backing-up drains across Brisbane, Perth and Adelaide, with 24/7 emergency service.

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