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Professional Local Sydney Plumbers

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Smelly Drains Sydney — Same Day Fix From $49*

Bad odour coming from your drains? We find the cause with a free CCTV inspection and fix it the same day — so your home smells fresh again.

Drain Clearing From $49* Same Day Service, 24/7 $0 Call Out Fee* Free CCTV Drain Inspection Lifetime Guarantee on Workmanship

★★★★★ 4.9 Rating · 1,232 Reviews

What Our Customers Say

★★★★★ 4.9 from 1,200+ Google Reviews

Esther Yu

★★★★★

“Liked the responsiveness — blocked drain fixed within a couple of hours notice. The plumber was helpful, efficient and polite. Highly recommend.”

Vik Prasad

★★★★★

“Charlie arrived right on time, was utterly professional and cleared our drain blockage fast. It does not get any more honest and efficient than this.”

Trevor Mcintyre

★★★★★

“Quick response, friendly, engaging and dare I say honest. Knowledgeable solution and good listeners. Would absolutely use again.”

Loretti Dobrescu

★★★★★

“Sam was fantastic — knowledgeable, diligent, on time, always in touch with updates. High quality services at a fair price.”

Adam Doyle

★★★★★

“Every time I have called, I’ve been booked in promptly. Sam has been assigned each time — cannot speak highly enough of the service.”

Danny Ng

★★★★★

“They came out same day. Lovely plumber. Fixed the issue quickly and explained everything clearly. Great value for money.”

Read All 1,200+ Reviews on Google

Drain Odour Diagnosis

What Causes Smelly Drains in Sydney?

Drain odours are never normal. Here are the most common causes our plumbers find across Sydney homes.

Blocked Drains

Food, hair, grease trapped in pipes causing rot and odour

Dry P-Trap

Unused drains lose their water seal, letting sewer gas through

Tree Root Intrusion

Roots crack pipes, causing leaks and sewage smells

Broken Sewer Vent

Damaged vent pipe allows sewer gas into your home

Bacteria Buildup

Biofilm in pipes produces hydrogen sulphide (rotten egg smell)

Cracked or Collapsed Pipe

Sewage leaking into surrounding soil and venting upward

Grease Buildup

Cooking fats solidify in kitchen drains and turn rancid

Failed Drain Seal

Worn gaskets or loose fittings at toilet or basin connections

How We Fix It

We don’t just mask the smell — we find and fix the source permanently.

CCTV Drain Camera

High-Pressure Jet Blasting

Chemical Root Treatment

Pipe & Vent Repair

Get a Free Smelly Drain Quote $0 Call Out Fee* — Same Day Service

Simple Process

How We Fix Smelly Drains

From your call to a fresh-smelling home — here’s how we get it done.

Call or Book Online

Tell us about the smell — which drains, how long, how bad. We’ll book a same-day visit. Available 24/7 including weekends. $0 call out fee*.

We Diagnose With CCTV

Our plumber runs a HD CCTV camera through your drains to find the exact cause — blocked pipe, dry trap, tree roots, cracked sewer vent, or bacteria buildup. No guesswork.

Fixed on the Spot

We show you the CCTV footage, explain the problem, and give you an upfront fixed price. Most smelly drain jobs are completed within 1–2 hours. Lifetime guarantee on workmanship.

Get a Free Quote

Why DIY Drain Cleaners Won’t Fix Smelly Drains

Pouring bleach or baking soda down a smelly drain might mask the odour for a few hours — but it never fixes the real problem. Supermarket drain cleaners can actually corrode your pipes, making things worse.

Chemical cleaners damage pipes — they eat away at older clay and PVC
The smell always comes back — because the cause is still there
Sewer gas is a health hazard — hydrogen sulphide can cause headaches and nausea
A CCTV camera finds the real cause — so we fix it permanently, the first time

Book a Free Quote

1300 677 752 Get Free Quote

Don’t Ignore Smelly Drains — It Gets Worse

A smelly drain is your plumbing system telling you something is wrong. Left untreated, the problem escalates — from a bad smell to sewage backup, water damage, or a health hazard.

Sewage backup — blocked sewers can overflow into your home
Structural damage — leaking pipes erode foundations and flooring
Health risks — mould, bacteria, and sewer gas exposure
Higher repair costs — small fixes become major pipe replacements

Call Now: 1300 677 752

Why Sydney Chooses Mr Splash for Smelly Drain Repairs

We’ve been fixing smelly drains across Sydney for over 15 years. We don’t just mask the odour — we find the source with CCTV cameras and fix it permanently.

4.9 stars from 1,200+ Google reviews
Free CCTV inspection with any booked drain service
Drain clearing from $49* with $0 call out fee*
Same-day service, 24/7 — including weekends
Licensed (#306457C) & fully insured

Get a Free Quote

1300 677 752 Get Free Quote

Our Smelly Drain Services

From quick drain clears to full sewer repairs, we fix every type of drain odour problem.

emergency drain repair icon

Emergency Drain Odour Fix

Sewage smell filling your home? We respond same day, 24/7. Our plumbers diagnose the cause with CCTV and fix it on the spot — so you can breathe easy again.

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Deep Drain Cleaning

Bacteria, grease and biofilm buildup inside your pipes cause persistent odours. Our high-pressure jet blasting scours pipe walls clean — removing the smell at its source.

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Preventative Drain Care

Stop smells before they start. Regular CCTV drain inspections and jet cleaning keep pipes clear of buildup. We recommend a check every 1–2 years for Sydney homes.

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Get Your Free Smelly Drain Quote

Fill out the form and one of our licensed drain specialists will be in touch shortly.

★★★★★ 4.9 Rating · 1,200+ Reviews

$0 Call Out Fee*

Drain Clearing From $49*

Licensed & Insured (#306457C)

Same Day Service — 24/7 Emergency

Lifetime Guarantee on Workmanship

Jon Tsingolis

Owner, Mr Splash Plumbing

Or call us now

1300 677 752

Request a Free Quote

Takes less than 60 seconds.

FAQS

Answer:

Smelly drains in Sydney are usually caused by blocked pipes, dry P-traps (common in unused bathrooms), cracked sewer vents, tree root intrusions, or bacteria buildup in the drain line. Sydney’s clay soil and older pipe systems make root intrusion particularly common. A CCTV drain camera inspection finds the exact cause.

Answer:

Drain clearing starts from $49* with Mr Splash Plumbing. The total cost depends on the cause — a simple P-trap fix or jet blast may be under $200, while a cracked sewer line or tree root removal typically ranges from $200–$600. We always provide an upfront fixed price before starting work. $0 call out fee*.

Answer:

Pouring boiling water or baking soda down the drain may temporarily reduce odour, but it won’t fix the underlying cause. Supermarket drain cleaners can actually corrode your pipes. A licensed plumber uses a CCTV drain camera to find the real problem and fix it permanently.

Answer:

We offer same-day service for smelly drain repairs across Sydney. Most jobs are completed within 1–2 hours. For emergencies, we’re available 24/7 — call 1300 677 752.

Answer:

A rotten egg smell from your shower drain is usually hydrogen sulphide gas produced by bacteria in the drain line, or sewer gas coming through a dry or broken P-trap. If you haven’t used the shower in a while, try running water for 30 seconds to refill the trap. If the smell persists, you need a professional diagnosis.

Answer:

Kitchen sink smells are most commonly caused by grease, food scraps and biofilm buildup inside the drain pipe. Over time these decompose and produce foul odours. High-pressure jet blasting clears the buildup completely. We also check for blocked or damaged vents that can trap odour.

Answer:

Yes, it can be. Sewer gas contains hydrogen sulphide and methane — exposure can cause headaches, nausea, dizziness, and in severe cases is flammable. If you smell sewage inside your home, you should call a licensed plumber promptly.

Answer:

Yes. We offer a lifetime guarantee on workmanship for all drain repairs. If the smell comes back due to our work, we’ll fix it at no charge. We’re licensed (#306457C) and fully insured.

*$49 price applies to standard drain blockages. $0 call out fee applies to standard service calls. Free CCTV inspection included with any booked drain service. Upfront pricing provided before any work begins.

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