Blocked Drain Costs: Clearing, CCTV and Jetting
Blocked drains come in two price tiers, and knowing which one you're in is most of the battle. What's The Damage's July 2026 re-verification across 90+ sources puts a standard drain clear at $150–$400 nationally, and a CCTV inspection with high-pressure jetting at $350–$900. Here's what separates them, and the warning signs you're headed for the second tier.
The two price tiers of drain work
Blocked drain pricing in Australia splits cleanly into two tiers, and almost every quote you'll ever receive belongs to one of them. Tier one is the standard clear: a plumber with a plunger, drain machine or hand auger restores flow to a blocked fixture or line. Tier two adds diagnostics and force — a CCTV camera inspection to see what's actually in the pipe, and high-pressure water jetting to cut it out. Nationally the first runs $150–$400 with $280 typical; the second runs $350–$900 with $550 typical.
| Service | Low | Typical | High |
|---|---|---|---|
| Blocked drain — standard clear | $150 | $280 | $400 |
| Blocked drain — CCTV inspection + jetting | $350 | $550 | $900 |
The gap between the tiers isn't upselling; it's information. A standard clear restores flow without necessarily learning why it stopped. The camera tells you why — and for recurring blockages, that answer is usually worth more than the clear itself.
What a standard clear covers
The $150–$400 visit suits the everyday blockage: a single slow or stopped fixture, a kitchen line clogged with grease, a shower trap full of hair, a toilet that took something it shouldn't have. The plumber works from the fixture or the nearest access point with mechanical tools, restores flow, and tests it. Where the job sits in the band tracks access and stubbornness — a trap-level clog at a vanity is bottom of the range; a main-line blockage reached through an overflow gully with a powered machine sits at the top. One honest limitation to know upfront: a mechanical clear can punch a hole through a soft blockage and restore flow without fully removing it, which is why a drain that re-blocks within weeks is telling you something.
When CCTV and jetting earn their price
Four situations point straight to tier two. A drain that keeps re-blocking after standard clears — paying $280 three times a year is worse arithmetic than paying $550 once to find the cause. Tree roots, the great Australian drain villain, which mechanical tools trim but jetting actually cuts back to the pipe wall. Any suspicion of pipe damage — older homes with earthenware or clay drainage lines are prime candidates for cracked joints and root intrusion, and the camera is the only way to know without digging. And pre-purchase peace of mind: a camera inspection before buying an older home is one of the cheapest large-risk checks in the building game. The jetter clears; the camera explains; together they turn a mystery into a maintenance plan.
Warning signs you're headed for tier two
The drain usually announces the expensive version in advance. Multiple fixtures slowing at once — when the shower, toilet and laundry all struggle together, the problem is downstream in the main line, not in any one trap. Gurgling from one fixture when another drains, which is air moving past a partial obstruction. Water rising at the overflow gully outside, the system relieving itself where it's designed to. Odours from floor wastes. And the calendar sign: any blockage that returns within a couple of months of being cleared. One of these is a hint; two or more is the drain asking for a camera.
What actually blocks Australian drains
Inside the house, the culprits are domestic: cooking fat and grease that sets in the kitchen line, hair and soap in bathroom traps, and the great modern menace — wet wipes, which do not break down regardless of what the packet implies. Outside, it's the landscape: tree roots hunting moisture through the joints of older clay and earthenware pipes, soil movement cracking rigid lines, and storm debris where surface drainage ties in. Older homes carry more risk simply because pre-modern drainage materials have more joints and less flexibility than modern PVC. Knowing which category you're in shapes the fix: habits solve the inside list, while the outside list is a condition conversation, not a behaviour one.
Prevention that actually works
Most drain advice is folklore; a short list genuinely moves the needle. Keep fat out of the kitchen sink — wipe pans before washing, jar the grease. Bin wipes, every brand, always. Put simple strainers in shower and bathroom wastes and empty them weekly. Run hot water through the kitchen line after greasy washing-up. If your block has significant trees near the drainage run, treat a periodic camera check the way you'd treat gutter cleaning — boring, cheap, and vastly cheaper than the alternative. And skip the caustic supermarket drain chemicals as a routine habit: they rarely fix a real blockage and they make the eventual plumber's job less pleasant without making it cheaper.
If the camera finds damage
Sometimes the inspection ends the good news: cracked pipe, collapsed section, root-crushed joint. That work — relining a damaged run or excavating and replacing it — is its own project with its own quote, sized by length, depth and access, and it sits beyond the bands on this page. What the camera footage gives you is leverage and clarity: get the recording, get the location and depth marked, and take it to more than one drainage specialist for an itemised quote. Repair decisions made from evidence beat repair decisions made from a wet lawn — and either way, you'll never again pay to clear a blockage nobody could explain.
Plumber cost in your city
Verified July 2026 ranges — tap your city for the full local guide.
Frequently asked questions
How much does it cost to unblock a drain in Australia?
A standard clear — restoring flow with mechanical tools — runs $150–$400 nationally with $280 typical, per What's The Damage's July 2026 re-verification across 90+ sources. Adding a CCTV camera inspection and high-pressure jetting lifts the job to $350–$900 with $550 typical.
When is CCTV drain inspection and jetting worth it?
When a drain keeps re-blocking after standard clears, when tree roots are suspected, when the home is older with clay or earthenware lines, or before buying an older property. Paying $550 once to learn the cause beats paying $280 several times a year to treat the symptom.
What are the signs of a serious drain blockage?
Multiple fixtures slowing together, gurgling from one fixture when another drains, water rising at the outdoor overflow gully, odours from floor wastes, or any blockage that returns within a couple of months of being cleared. One sign is a hint; two or more means the main line needs a camera.
What causes blocked drains in Australian homes?
Indoors: cooking grease, hair and soap, and wet wipes — which never break down, whatever the packet says. Outdoors: tree roots entering the joints of older clay pipes, soil movement cracking rigid lines, and storm debris. Older homes carry more risk simply through older drainage materials.
Do supermarket drain cleaners work?
Rarely on a real blockage. Caustic chemicals may soften a minor kitchen clog but won't touch roots, wipes or main-line obstructions, and repeated use makes the eventual professional clear less pleasant without making it cheaper. Strainers, grease habits and hot-water flushes prevent more than chemicals cure.
What happens if the camera finds a damaged pipe?
Relining or excavation becomes its own quoted project, sized by length, depth and access — beyond the clearing bands on this page. Keep the camera footage and marked location, and take them to more than one drainage specialist for itemised quotes; repairs priced from evidence beat repairs priced from a wet lawn.
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