Why drains can be a hidden risk when buying a house
When you're looking to buy a house, it's easy to forget about the drains because they're mostly out of sight. However, problems with your drains can be expensive, disruptive, and stressful to fix after you've moved in. A CCTV drain survey can show the true condition of the drainage system before you buy.
A CCTV drain survey can spot faults that aren't obvious during normal viewings, such as cracks, displaced joints, collapsed pipes, and dips where water collects and stagnates. A drain survey can also find root intrusions, which are common in older homes with mature trees and gardens. These issues can often lead to blockages, leaks, damp, and even damage to your home's paving or foundations if the ground is affected too much over time.
Another reason to have the drains checked is that some homes have shared drainage runs or older pipe materials. A drain survey can help map out where the drains go and highlight any areas that may need repairing soon. A CCTV drain survey gives you clearer information, protects your budget, and helps you buy with more confidence.
Common drain problems found during surveys
One of the most common drain issues that's found in homes is a build-up inside the pipes. Grease, food waste, wet wipes, and soap residue can build up in the pipes over time and cause slow-draining sinks, gurgling toilets, and bad smells. A drain survey can show how far the build-up has spread and whether it's likely to keep causing blockages.
Cracked or broken pipes are also common issues, especially in older properties or homes that experience frequent ground movement. Small cracks can let water leak into the soil and allow dirt to enter the pipes, and over time, this can lead to constant blockages and even collapsed pipes. A CCTV drain survey can spot this damage early on and show the exact location of the issue.
Roots can also slip in through tiny gaps in the pipe joints, then grow inside the pipe and trap waste or debris. A CCTV camera can show where the roots have entered from, where they are, how dense they are, and whether the pipe has been harmed.
Drain surveys can also find displaced joints or poor connections. Pipes can shift over time and leave small steps inside the pipe that trap waste. Additionally, drain surveys can highlight any bad repairs that have been done in the past, such as patchwork that doesn't seal properly, or pipes that have been joined in the wrong way.
Signs of drain issues you might miss at a viewing
When you're viewing a home, drainage problems can be easy to miss. Drains are hidden away, and house viewings are often short. Some signs of drainage issues can be covered up with quick fixes, and some can't, so it helps to know what to look for and why a CCTV drain survey can be useful.
One sign that people often miss is a slow-draining sink, bath, or shower. During a viewing, you may not run the taps for long enough to notice the water rising, and toilets can also seem fine after one flush, but problems may start to show up when the system is used more often.
Unpleasant smells are another warning sign. Bad odours can come from a build-up inside the drains, a damaged pipe, or a problem with the ventilation. During a viewing, look out for open windows and air fresheners near sinks or drain points. If you notice a strong scent in the bathroom, kitchen, or near a manhole cover outside, it's worth looking into.
Damp patches, soggy ground, or areas where the grass grows faster and greener can also be signs of a drain pipe leak, especially near inspection covers or along the pipe run. Sunken paving, loose blocks, or cracks in the driveway can also be linked to ground movement caused by broken drains underneath.
When to book the drain survey in the buying process
When you're looking to buy a home in the UK, the best time to book a CCTV drain survey is after your offer has been accepted but before you exchange contracts. This is the stage where you're serious about the purchase, but you can still change your mind or renegotiate if the survey finds any major problems. Booking the survey too early can waste your money if you don't end up buying the property, and booking it too late can leave you stuck with an expensive issue after you've legally committed to the home.
Many buyers arrange a drain survey at the same time as their other inspections, such as their homebuyer report or building survey. Doing all your surveys at the same time can help you build a clearer picture of the property’s condition before you commit to the purchase. It also gives you time to get quotes for any repairs if issues are found.
A CCTV drain survey is usually needed if there are issues like slow-draining sinks or baths, gurgling sounds from plugholes or toilets, bad smells, damp patches in the garden, or a manhole that looks unusually wet or dirty. It's also best to book a drain survey for older homes or properties that have had extensions or driveways added because their drainage routes and pipe conditions can be harder to map out.
Pipes can crack, shift, or become blocked without showing any clear signs on the surface. A quick unblocking service might clear the symptom, but it won't fix the root cause. A CCTV drain survey can show what's actually happening inside your pipes, including issues like build-ups, root entry, damaged joints, dips, and collapsed pipes.
Clenston Ltd provides CCTV drain surveys to help find blockages, cracks, root entry, and other hidden faults in your pipes. We provide clear reports and practical advice to help you avoid repeat drainage problems.
