6 Signs That You Need a Drain Inspection

Your home’s drains get worn down daily through continued use and accumulate buildup like grease, soap scum, hair, and other debris over time. Thus, regular maintenance is essential to prevent blockages, ensure proper drainage, and avoid costly repairs down the line. One of the most effective ways to keep drains in top condition is through routine drain inspections.

Not conducting drain inspections can lead to serious consequences, as any undetected blockages or damage can cause sluggish drainage, unpleasant odours, and even sewage backups. In more severe cases, unchecked leaks can even weaken a building's foundation or cause water damage. Fortunately, you can rely on experienced Dunedin plumbers for regular drain inspections so that, as New Zealand property owners, you can avoid these issues and extend the lifespan of your drainage systems. 

To help you determine if it’s time for you to get your drainage system inspected, we’ve compiled several signs you should watch out for.

1. Slow Drainage

If water takes longer than usual to drain from sinks, showers, or tubs, it may indicate a partial blockage in your drainage system. This can be caused by accumulated debris, grease, or even tree roots invading the pipes. While slow drainage may seem minor at first, it can worsen over time, leading to full blockages and potential pipe damage.

A drain inspection can pinpoint the exact location and cause of the issue before it escalates into a major plumbing problem. If you’re experiencing consistently slow drainage, consider calling an emergency plumber so that they can quickly identify whether it’s a minor clog or a more serious problem and take prompt action to fix it.

2. Foul Odours

Unpleasant smells coming from your drains can indicate a serious problem, such as rotting debris, stagnant water, or even a sewer line leak. In some cases, the smell may also signal harmful gases being released, which can pose health risks. If ignored, these odours can become stronger and more persistent, making your home not only uncomfortable to live in but also highly unsafe.

A thorough drain inspection helps identify whether the issue is due to a clog, a venting problem, or a cracked pipe, allowing for a targeted solution. In particular, plumbers who also offer gas fitting services can determine whether the smell is from the drains or a gas-related issue, thus keeping you safe from potential gas leaks and exposure to toxic fumes.

3. Frequent or Multiple Clogs

The occasional clogging of your home’s drains is pretty normal, with some minor ones even clearing up on their own over time. However, if you’re dealing with repeated blockages or multiple drains clogged at once, this could indicate a deeper problem, such as a major obstruction in the main sewer line. In such cases, it’s best to ask a plumber to inspect your drains to more accurately determine the cause of the clogging. 

Frequent clogs put extra strain on your plumbing system and increase the risk of leaks or pipe damage. Moreover, unchecked clogs can lead to sewage backups, causing water damage and potential health hazards. Through regular drain inspections, you can maintain a smooth-running drainage system and extend the lifespan of your pipes.

4. Gurgling Noises



Hearing strange gurgling or bubbling sounds as water flows down the drain is often a sign of trapped air in the pipes, usually caused by a partial blockage. The sounds can also point to improper venting or a deeper sewer line problem. If left unchecked, the increased pressure in the system can lead to leaks or burst pipes. By relying on your trusted local plumber for a drain inspection, you can identify the source of the noise and help prevent further damage to your plumbing.

5. Water Backups or Overflow

Water or sewage backing up into your sinks, tubs, or toilets is a clear sign of a serious plumbing issue, often signalling a major clog or even a damaged sewer line. Backups can cause significant water damage, promote the growth of mould and mildew, and create unsanitary conditions. An immediate drain inspection is essential in this situation to locate the blockage or leak and prevent further damage to your home.

Ignoring backups or overflows can lead to extensive property damage and expensive restoration costs. With regular drain inspections, you can catch minor clogs before they escalate into full-blown plumbing emergencies.

6. Damp or Soggy Patches in the Yard

Unexpected wet or sunken areas in your yard can indicate a leaking underground drain or sewer line. These patches also cause foul smells and attract pests or may even lead to soil erosion and weaken your property’s foundations. In severe cases, underground leaks can cause sinkholes or flooding on your property. Schedule a drain inspection right away to detect underground plumbing issues early on and save yourself from major landscaping and foundation repairs.

Got Drain Problems? Don’t Hesitate to Call Mains Plumbers Today

As the old saying goes, an ounce of prevention is worth a pound of cure. That’s certainly the case when it comes to your drains. Catching issues early with a professional inspection can save you from costly repairs and major headaches down the road. If you’ve noticed any of the warning signs above, don’t hesitate to contact our expert team here at Mains Plumbers to get the issue fixed right away. You can reach us by dialling 03-488-6000 or leaving a message on our online contact form. We look forward to getting your drains flowing smoothly again soon.