If your sink is draining slowly, your toilet is gurgling, or you notice a strange smell coming from your yard, it’s tempting to just plunge or pour chemicals down the drain. The problem is, these are only temporary fixes, as you can’t solve the issue for good unless you know what’s really causing it, and often, the source is hidden in the pipes beneath your home.

A CCTV drain inspection lets you see inside your pipes without digging up your yard, so you can understand why your drains are acting up, catch small problems before they turn into costly repairs, and make smart decisions about maintenance or repairs.

In this guide, we’ll explain what a CCTV inspection is, what issues it can uncover, and why it’s worth considering, so you can protect your home and avoid unnecessary stress or expenses.

TL;DR

• A CCTV drain inspection uses a waterproof camera attached to a flexible cable to see inside your pipes without digging.
• In an inspection, the plumber guides the camera through your drains, records the footage, pinpoints exact problem locations with a sonde, reviews the findings with you, and recommends the next steps for repairs or maintenance.
• CCTV camera inspections are also useful for pre-purchase checks, insurance claims, post-construction damage, or verifying the effectiveness of previous drain clears.
• Common issues revealed are tree roots, misaligned pipes (bellies), cracks, joint failures, grease build-up, foreign objects, corrosion, and poor installation.
• You need a CCTV camera inspection if you experience recurring blockages, slow drainage, gurgling pipes, sewer smells, soggy patches, fluctuating water levels, or multiple backed-up drains.
• Typical residential inspections take 30–120 minutes and cost $250–$550, depending on pipe condition, accessibility, pipe length, and inspection type.

What Is a CCTV Drain Inspection?

A CCTV drain inspection is a non-invasive method that uses a high-resolution, waterproof camera attached to a flexible cable to look inside the drain in real time. This gives a clear, accurate view of your pipe’s condition and helps identify specific problems like cracks, tree root intrusions, blockages, or even collapsed sections.

The setup includes:

• a small camera head with built-in lights, 
• a flexible pushrod that moves the camera through bends in the pipe, 
• and a monitor that shows live footage as the camera travels through the drain. 

Most modern systems also include a sonde, which is a small signal-emitting device attached to the camera. As the camera moves underground, the plumber uses a locator above ground to track its exact position and depth so they can pinpoint the exact spot without digging up large areas.

What to Expect in a CCTV Drain Inspection

Before the Inspection

The plumber starts by finding the best entry point into your drain. This is usually an inspection opening, a gully, or an outdoor drain grate. You must make sure these areas are easy to access and not blocked by pots, soil, or debris.

If your drain is overflowing or completely blocked with standing water, the plumber may first use a high-pressure water jetter to clear the immediate buildup and remove grease, sludge, and loose debris so the camera can actually see the pipe walls clearly. Otherwise, the footage would just show dirty water instead of the real condition of the pipe.

During the Inspection

• Insertion: The plumber inserts the camera into the drain through the access point. This camera is attached to a flexible cable, which is pushed through the pipe. 
• Real-Time Navigation: The plumber physically pushes and pulls the camera through the pipe using the flexible cable. As the camera moves through the full length of your drainage or stormwater pipes, the plumber carefully guides it through bends, junctions, and changes in direction. At the same time, they watch the live footage on the screen and check for clear, specific issues (which we will discuss later). 
• Locating the Problem: When the camera spots something important, like a root blockage or a damaged pipe section, the plumber uses a sonde, which is a small signal emitter built into the camera head. Above ground, the plumber holds a sonde locator that detects this signal. This allows them to track the exact position and depth of the camera underground. They then mark the precise spot on your lawn, driveway, or floor, so if repairs are needed, they know exactly where to dig.
• Recording the Evidence: The entire inspection is recorded as the camera moves through the pipe. The plumber may also capture still images of key problem areas, like cracked joints, sagging sections, or heavy root intrusions. This gives you a clear, visual record of what’s inside your drain.
• Completing the Inspection: Once the camera has travelled the full length of the pipe and all areas of concern have been documented, the plumber carefully retracts the camera back through the same access point and ends the inspection.

After the Inspection

Once the camera is removed, the plumber will go through the footage with you. They’ll show you exactly what was found, explain what it means in simple terms, and suggest the next steps, like a thorough clean or more targeted repairs.

You’ll also receive a digital copy of the recording along with a report that outlines the condition of your pipes. This gives you clear evidence of your drain’s condition, which helps you plan repairs or provide proof for an insurance claim.

What Problems a CCTV Drain Inspection Can Reveal

A CCTV drain inspection can uncover the following issues in your pipes:

• Tree Root Intrusion: Tree roots naturally grow towards water, and small cracks or gaps in your pipes give them easy entry. Once inside, roots expand and can crack the pipe or completely block the flow, causing stubborn, recurring blockages. The camera can even spot tiny, hair-like roots entering pipe joints before they become a major problem.
• Pipe Misalignment or Bellies: Townsville’s soil is reactive, which means it expands when wet and shrinks when dry. This movement can shift pipes out of alignment or create sagging sections called bellies, where water and debris collect instead of flowing freely, and cause repeated blockage. A CCTV inspection shows exactly where these problem areas are.
• Cracks, Fractures, and Collapsed Pipes: Pipes can crack or collapse over time because of age, ground movement, or heavy loads above, like cars or trucks. CCTV footage helps you see whether there is a small hairline crack or a full collapse, so you can repair accordingly. 
• Joint Failures and Seepage: Pipes are connected in sections, and these connections are called joints. Over time, seals at these joints can degrade, or the sections can pull apart, which lets wastewater leak into the surrounding soil and wash away ground underneath driveways or concrete slabs. CCTV pinpoints exactly where joints are failing. 
• Accumulated Build-Up: Fat, oil, and grease (FOG) stick to the inside of pipes over time and gradually narrow the space for water and waste to flow. The CCTV camera can clearly show this build-up, as well as foreign objects like flushable wipes, toys, or other debris stuck to the pipe walls.
• Corrosion, Wear, and General Pipe Condition: Older pipes slowly deteriorate over time. CCTV footage can show pitting, channelling (grooves forming along the inside of the pipe from repeated water flow), or thinning walls in metal or PVC pipes. This gives you a clear picture of the pipe’s health.
• Poor Installation or Non-Compliance: Even in newer builds or renovations, pipes can be installed incorrectly. CCTV can reveal back-fall (pipes sloping the wrong way), incorrect junctions, or other faults that don’t meet Australian Standards (AS/NZS 3500) for plumbing and drainage.

Signs You May Need a CCTV Drain Inspection

If you notice any of the following signs, it is a clear indicator that something is happening beneath the surface that requires a visual check.

• Recurring Blockages: If you find yourself reaching for the plunger every few weeks, there is likely a structural issue like tree roots or a shifted joint that needs a permanent fix.
• Slow Drainage: When water takes an unusually long time to disappear down the sink, shower, or bath, it suggests the pipe’s internal diameter is narrowed by grease buildup or a partial collapse.
• Gurgling Noises: Strange sounds coming from your pipes after you flush the toilet or run the washing machine mean a blockage further down the line prevents water from flowing smoothly.
• Sewerage Odours: If you smell persistent rotten egg or sewage odours around your drains or in your backyard, it often means there is a crack or a broken seal in the pipework allowing sewer gases to escape.
• Soggy Patches or Sinkholes: In Townsville’s dry periods, a patch of grass that stays unusually green or feels spongy indicates an underground leak that is saturating the soil.
• Changes in Water Levels: If the water level in your toilet bowl is higher or lower than usual, or if it fluctuates significantly, there is a venting or blockage issue in your main sewer line.
• Multiple Clogged Fixtures: When two or more drains are backed up at the same time, the problem is almost certainly in the main sewer line. 
• Suspected Damage After Building Work: If you have recently completed a renovation, heavy machinery or excavation could have crushed or nicked your pipes. An inspection confirms whether drainage is intact or not.
• Ground Movement and Structural Shifts: If you notice new cracks in your walls or if your concrete paths are shifting, a camera check is needed to ensure your underground pipes haven’t been compromised by these natural ground shifts.

How Long a CCTV Drain Inspection Takes and What It Costs

In Townsville, a residential CCTV drain inspection usually takes 30 minutes to 2 hours and costs between $250 and $550, depending on the complexity of your pipes and the inspection required. 

Both the time on-site and the price can vary based on these factors:

1. Age and Condition of Pipes: Older pipes may have cracks, sagging sections, or partial blockages. Inspecting these carefully takes extra time to ensure every issue is captured, which can also slightly increase the cost.

2. Access and Layout: Inspections are quicker and cheaper when entry points, such as inspection openings, gullies, or boundary traps, are easy to reach and free of grass, debris, or soil. Buried, blocked, or hard-to-reach access points require extra preparation and setup, adding to the time and labour cost.

3. Scope of the Inspection: Checking a single blocked line is faster and more affordable than surveying your entire drainage system. After heavy rain, it’s common for plumbers to inspect both sewerage and stormwater lines, which takes longer and costs more.

4. Blockages or Debris Inside the Pipes: Thick roots, grease, silt, or other debris can slow the inspection. The plumber may need to pause and clear the line with a high-pressure jetter to allow the camera to pass, which adds both time and equipment costs.

5. Type of Inspection: A standard CCTV inspection, which focuses on finding blockages or obvious damage, usually costs around $250–$350. More advanced surveys using a pan-and-tilt camera to view all angles inside the pipe are more detailed and cost more.

6. Pipe Length: Standard fees often cover around 20–30 metres. Longer runs, such as from a distant connection to the main sewer, may incur additional charges based on distance or the extra time needed.

7. Reporting Requirements: Many plumbers include a copy of the footage and report in the standard fee, but some may charge extra for a formal report with annotated photos and a digital copy of the footage for pre-purchase checks or insurance claims. 

By understanding these factors, you’ll know what to expect in both time and cost before booking a CCTV drain inspection so you can plan your day, budget accurately, and avoid unexpected delays or fees.

Final Thoughts

A CCTV drain inspection lets you see exactly what’s happening underground, whether it’s tree roots, sagging pipes, or build-up that’s already causing trouble or could cause problems in the future.

It is also useful if you’re buying a home, checking the condition of older pipes, or need solid evidence for an insurance claim. With a clear view of your drains, you can make informed decisions and even get the compensation you’re entitled to.

Once the inspection is done, your plumber can walk you through what was found and recommend the next step, whether that’s a proper clean, pipe relining, or a targeted repair, so you do not waste time or money trying temporary fixes. 

If you’re in Townsville and want clear answers about your drains, our team at 1touch Plumbing is here to help. 

FAQs

Can I do my own CCTV drain inspection?

You can buy or rent a DIY drain camera, but it usually doesn’t give you the full picture. Professional cameras used by our plumbers are higher quality, with clearer footage and built-in features like self-levelling, so the image stays upright as it moves.

More importantly, experts use a locator to track exactly where the camera is underground. So while a DIY camera might show you a blockage, it won’t tell you where it is or how deep it is, which makes it hard to fix the problem properly.

Will my home insurance cover the cost of the inspection?

In most cases, insurance won’t cover the cost of a CCTV inspection itself, as it’s considered maintenance and is your responsibility. 

However, if the inspection is needed to find the cause of sudden damage, like a burst pipe or flooding, it may be included as part of your claim. Always check your policy for cover related to pipe locating or exploratory work.

Is it worth getting a CCTV inspection before buying a house?

Absolutely. A CCTV inspection shows the true condition of your drains, whether they’re damaged, blocked by roots, or starting to fail, so you know exactly what needs attention. Spending a few hundred dollars upfront could save you thousands in future repairs or even give you leverage to negotiate the property price.

Why do I need a CCTV scan if the plumber already cleared the drain?

Clearing a drain removes the blockage, but it doesn’t tell you why it happened. For example, if tree roots caused the blockage, they will grow back over time. A CCTV inspection shows the condition of the pipe and the root cause of the issue, so you can decide if you need a long-term fix like pipe relining or if regular maintenance is enough to keep the water flowing.