A bloke in Casula rang about a sewer that blocked every few months. Two plumbers had cleared it and one had quoted to dig up the backyard, but nobody had looked inside the pipe. I cleared it, put the camera down, and we watched a root mass push through a cracked earthenware joint under the clothesline, nowhere near the patio the quote wanted to dig up.
That is what a CCTV drain inspection is for, and I do a lot of them as a South West Sydney plumber. Before anyone digs, relines or tells you the whole line has to go, a camera should go down the pipe so you can see the fault, and a pipe locator should mark exactly where it is. Here is what the camera shows, what it cannot, what it costs, and when you actually need one. We run a CCTV drain inspection, no call-out fee, across Liverpool, Camden and Campbelltown.
A CCTV drain inspection pushes a waterproof camera through your sewer or stormwater pipe so you can see what is causing the blockage before anyone digs. A locator on the surface then marks where the fault is and how deep. The inspection is quoted on inspection and is usually bundled with clearing the drain.
How a CCTV drain camera works
The camera is a waterproof head about the size of a golf ball with a ring of LED lights around the lens, on the end of a stiff push rod wound onto a reel. I feed it in through an inspection opening, the overflow gully, the boundary trap or, if there is nothing else, through the floor after lifting the toilet. The head self-levels so the picture stays the right way up, the reel counts how many metres of rod are in the pipe, and the picture comes up live on a screen you can stand next to me and watch. It is recorded, so you get the footage.
Built into the head is a small transmitter, called a sonde, that puts out a low frequency radio signal (512 Hz on most drain cameras, a frequency that still gets out through wet ground and metal pipe). Above ground I walk a handheld locator across the lawn until it finds the strongest signal, which sits directly above the camera head, and the locator estimates the depth. That is the pipe locator half of the job. It turns "somewhere in the backyard" into a paint mark on the grass with a depth written next to it.
What a sewer camera inspection can show
In an older house in Liverpool or Fairfield the sewer is usually earthenware (glazed clay) laid in short lengths with a joint every 600 mm or so, and every joint is somewhere roots can get in. The camera picks up root intrusion, cracked and broken pipe, joints that have dropped or pulled apart, sections holding water where the pipe has settled into a belly, grease and scale build-up, collapsed sections, and objects that should not be there: wet wipes, a toy, a builder's offcut. It shows the pipe material and the point where clay changes to PVC because someone did a partial repair years ago. On stormwater lines it finds the crushed pipe under the driveway that floods the lawn every storm.
What the camera cannot see
I have seen people sold a reline on footage that showed nothing, so the limits matter. The camera cannot see through dirty water. If the pipe is full because it is blocked, the picture is brown and useless until the line is cleared. It cannot see outside the pipe wall, so it will not show a void in the soil or roots wrapped around the outside. It cannot pass a full collapse or a hard blockage, and it cannot measure how thick the pipe wall is. The locator only finds the camera head; it does not find gas, power or water services, which is why nobody should dig on the strength of a paint mark without a Before You Dig enquiry first.
Why I clear the drain first, then put the camera down
A blocked drain gets cleared first and inspected second. Most of the time the clear is jet blasting, which cuts roots and scours grease out of the full length of pipe; I covered how that works in jet blasting blocked drains. Once water is running, the camera goes in and shows what caused it. That order matters for two reasons. The picture is only worth anything in a clear pipe, and the clear is the part you were always going to pay for, so the inspection is usually bundled with it rather than sold on its own. If a plumber wants to charge for a camera inspection on a pipe that is still full of water, ask what they expect to see.
Pinpointing the fault: how to locate a blocked drain before you dig
When the camera is sitting on the fault, I stop pushing, go outside with the locator and find the head. I mark the spot, note the depth, and check it against the metres on the reel. Now the repair conversation changes. Instead of a trench along the whole run, it is a hole a metre square over one broken joint. Instead of a full-length reline, it is a short patch, or a dig where the pipe runs under lawn rather than under the slab. When the mini excavator comes in it digs where the mark is and nowhere else, and when the fault is under a driveway or the house, the footage and the depth decide between boring past it with the Grundomat, cutting the concrete, or a specialist reline. Done right. Done once.
CCTV drain inspection cost in South West Sydney
The honest answer is that a camera inspection is quoted on inspection and is usually bundled with the clear. Using Sydney 2026 price guides, clearing a blocked drain runs $180 to $450, call-out fees are $69 to $170, and plumbers charge $92 to $230 an hour, most around $140. What moves the camera part of the job is access (an inspection opening at the boundary is quick; lifting a toilet to get in adds time and a new pan seal), the length of pipe, whether it needs clearing first, and whether you want a written report with footage for an insurer or a vendor. A camera inspection on its own is never an emergency, so book it for business hours.
| What you are paying for | Sydney 2026 price guides | What moves it |
|---|---|---|
| Call-out | $69 to $170 | After hours, distance |
| Clearing the blocked drain (machine or jet blaster) | $180 to $450 | Length of run, roots or grease, access |
| CCTV drain camera inspection | Quoted on inspection, often bundled with the clear | Access point, pipe length, report and footage |
| Locating and marking the fault | Usually included with the inspection | Depth, distance from the access point |
| Repair, patch, reline or dig | Quoted from the footage | Depth, what sits above the pipe, pipe material |
Drain inspection before buying a house
A building and pest report does not look inside the sewer. For a house built before about 1980 around Liverpool or Fairfield, the drain is probably earthenware, probably has a tree near it, and probably has a boundary trap nobody has opened in years. A camera down the sewer and stormwater before you exchange tells you if you are buying a routine clear or a relining job, and the footage is something you can put in front of the vendor. It is the one part of a pre-purchase plumbing inspection I would never skip, and it is the most common reason a buyer rings me as a plumber in Liverpool the week before settlement.
Buyers are often surprised by where the responsibility line sits. Sydney Water looks after the sewer main and the junction, and its responsibility for repairs page puts everything on the private side of the connection point, including roots entering at the junction, with the property owner. A root problem in the sewer is yours, so find out before the price is agreed, not after.
When to call a plumber for a drain camera inspection
Call for a camera when a drain has blocked more than once in a year, when someone has quoted to dig or reline without showing you footage, when there is a sinkhole, a soggy patch or a strip of suspiciously green grass over the line, when the yard floods from stormwater in every storm, before you buy an older house, and after a big repair so you can see it was done properly. Ring straight away, camera or not, when sewage is coming up in the shower or the overflow gully outside is running over. That is an emergency, and the emergency plumber page covers the after-hours side.
Monarch Civil & Plumbing is based in Austral and covers South West Sydney and the Macarthur region, with the camera, the locator, the jet blaster and the excavator on the one truck. If you need a plumber in Casula, a camera down a sewer in Liverpool or a stormwater line traced in Fairfield, the blocked drains page covers what I do, and 0455 222 292 gets me directly.
Related guides: tree roots in sewer pipes and jet blasting blocked drains.
Need it sorted? Ring 0455 222 292 any hour or book online. Monarch Civil & Plumbing offers a CCTV drain inspection, no call-out fee: the fault on screen, marked on the ground, and a written quote the same day.
Blocked drain in Liverpool, Fairfield or Campbelltown?
The local pages say what is usually wrong in your suburb and what Paul does about it: blocked drains Liverpool, blocked drains Fairfield and blocked drains Campbelltown. Everywhere else within about 20 km of Austral, the blocked drains page covers how a job runs and service areas lists every suburb. No call-out fee anywhere, and the camera goes down before anything is quoted.
Frequently asked
What does a CCTV drain inspection show?
It shows the inside of the pipe in real time: tree roots coming through joints, cracks and breaks, joints that have dropped or separated, sections holding water, grease and scale, collapsed pipe and foreign objects. It also shows the pipe material and where earlier repairs were made. The reel counts the distance to each fault, and a locator above ground marks the spot and estimates the depth so a repair can be planned without guesswork.
How much does a drain camera inspection cost in Sydney?
It is quoted on inspection and usually bundled with clearing the drain, because the camera is only useful once water is flowing. Sydney 2026 price guides put a blocked drain clear at $180 to $450, call-out fees at $69 to $170 and plumbers at $92 to $230 an hour, most around $140. Access, pipe length, a written report with footage and after-hours timing are what move the camera part of the price.
Can a drain camera find exactly where the blockage is?
Yes, within reason. A transmitter in the camera head sends a low frequency signal, and a handheld locator on the surface finds the strongest point, which is directly above the head, and estimates the depth. Accuracy depends on depth, pipe material and interference, so I check it against the metres on the reel. It locates the camera only, not other buried services, so a Before You Dig enquiry is still needed before excavation.
Should I get a drain inspection before buying a house?
For anything built before about 1980 in South West Sydney, yes. Older sewers are earthenware with a joint every 600 mm, and roots find them. A building and pest report does not look inside the pipe, and once you own the property everything on the private side of the Sydney Water connection point is yours to repair. Footage before exchange tells you if you are buying a routine clear or a relining job, and it gives you something to negotiate with.
Can the camera go through a blocked drain?
Not usefully. The lens cannot see through dirty water, so in a pipe that is full because it is blocked the picture is brown and tells you nothing. The drain is cleared first, usually with a jet blaster or a machine, then the camera goes in to show what caused the blockage and whether the pipe is damaged. That is why the inspection is normally bundled with the clear rather than sold separately.
How long does a sewer camera inspection take?
Most residential runs take 30 to 60 minutes once the drain is clear, including locating and marking any fault on the surface. It takes longer when the only way in is through the toilet, when the run is long or has several branches, or when you want a written report with the footage for an insurer, a vendor or an agent. It is never an after-hours job, so book it in business hours.
Licensed plumber and drainer based in Austral, 13+ years in the trade, working across Liverpool, Fairfield and the Macarthur region. About Paul