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Blocked Drains & Overflowing Toilets Auckland

Fast, professional drain unblocking across Auckland. We find the problem and fix it properly.

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A blocked drain or overflowing toilet is one of the most common plumbing emergencies in Auckland homes. Whether it is a slow kitchen sink, a gurgling shower drain, or a toilet backing up onto the bathroom floor, it needs sorting fast. Water & Gas Worx provides professional drain unblocking services across Auckland — we will locate the blockage, clear it, and make sure it does not come back.

Signs You Have a Blocked Drain

Blocked drains rarely happen without warning. Here are the signs to watch for before a small problem turns into a full overflow:

If you notice any of these, call a plumber before the situation gets worse. A partial blockage today becomes a full overflow tomorrow.

Common Causes of Blocked Drains in Auckland

Auckland has its own set of drainage challenges. Many homes, particularly in older suburbs, are running on drainage systems that are decades old. Here is what we find most often:

Auckland-Specific: Old Clay Drains

A large number of Auckland homes — particularly those built before the 1980s in suburbs like Mt Eden, Grey Lynn, Ponsonby, Remuera, and across the North Shore — have clay or earthenware drain pipes. These pipes were designed to last, but after 40 to 60 years they develop cracks at the joints. Tree roots exploit these cracks and work their way inside. If you are dealing with repeat blockages, old clay pipes are very likely the underlying cause. A CCTV drain inspection is the best way to confirm the condition of your drains and plan the right repair.

What to Do Before the Plumber Arrives

Do Not Pour Chemicals Down the Drain

Store-bought drain cleaners are harsh on old pipes and rarely clear the actual blockage. They can damage clay and PVC joints, create toxic fumes, and make the job harder (and more hazardous) for your plumber. If the drain is blocked, call a professional.

While you wait for us to arrive, here is what you can do to minimise the damage:

Our Drain Unblocking Services

We carry the equipment to handle any blocked drain — from a slow kitchen sink to a fully blocked sewer main. Here is what we offer:

Drain Unblocking

Using professional drain machines and electric eels, we clear blockages caused by grease, debris, and general buildup. Most internal blockages can be cleared on the first visit.

Hydro Jetting

For stubborn blockages and heavy root intrusion, we use high-pressure water jetting (hydro jetting) to blast through the obstruction and scour the pipe walls clean. This is the most effective method for removing tree roots and heavy grease buildup, and it leaves the pipe in the best possible condition.

CCTV Drain Inspection

We feed a small camera through your drain to see exactly what is happening inside. CCTV inspection takes the guesswork out of drainage problems. We can identify root intrusion, cracks, collapsed sections, bellies (sagging pipe), and buildup — and show you the footage so you can see it for yourself. This is essential for repeat blockages or when buying an older Auckland property.

Drain Relining

If your drain pipes are cracked or damaged but the line is still structurally sound, drain relining (also called pipe relining or no-dig repair) allows us to install a new pipe inside the old one without digging up your property. A resin-coated liner is inserted into the pipe and cured in place, creating a smooth, jointless new pipe that is resistant to root intrusion. This saves your lawn, driveway, and landscaping.

Kitchen, Bathroom, and Sewer Blockages

Kitchen Drain Blockages

Kitchen blockages are almost always caused by grease and food waste. Fat coats the inside of the pipe and food scraps get caught in it, eventually creating a solid plug. We clear the blockage and advise on how to prevent it happening again — the main thing being to never pour fat or oil down the sink.

Bathroom Drain Blockages

Hair and soap scum are the main offenders in bathroom drains. Shower drains and basins are particularly prone to hair buildup. Toilet blockages are usually caused by too much paper or foreign objects being flushed. We clear these quickly and can install drain guards to reduce future buildup.

Sewer and Main Drain Blockages

When the main sewer line is blocked, multiple fixtures in the house are affected at once. These are the most urgent blockages because sewage can back up into the home. Main drain blockages are commonly caused by tree roots, collapsed pipes, or a combination of both. We use CCTV and hydro jetting to diagnose and clear main line blockages, and recommend permanent repairs where needed.

Why Call Water & Gas Worx

Blocked Drain? Call Now — We'll Sort It

Fast drain unblocking across Auckland. Available for emergencies.

0800 322 322