At PM247, we specialise in providing top-quality drainage services across the UK, helping homeowners maintain their drainage systems and avoid costly repairs. One of the most common issues we encounter is collapsed drains, a problem that can cause serious inconvenience and damage to your home if left untreated. As drainage specialists, we want to equip you with the knowledge to identify the warning signs of a collapsed drain pipe early, and offer insight into the cost to repair a collapsed drain pipe.

This guide is designed to help you understand what causes a drain to collapse, how to spot the signs, and what steps to take if you suspect that your home’s drainage system is compromised.

What is a Collapsed Drain Pipe?

A collapsed drain occurs when the structure of the pipe becomes damaged to the point where it can no longer carry water and waste away from your home. A collapse can happen for a variety of reasons, and when it does, the flow of water becomes obstructed, causing drainage issues that can range from minor annoyances to serious home damage.

At PM247, we see this problem occur most often in older properties, but even newer homes can suffer from collapsed drains due to environmental factors or poor installation.

Common Causes of a Collapsed Drains

Several factors can contribute to a collapsed drain pipe. Our experienced team at PM247 has identified the most common causes in UK homes:

1. Ground Movement: Over time, natural shifts in the earth can place stress on underground pipes, causing them to crack or collapse. This is especially common in areas with unstable soil or clay-based foundations.
2. Tree Roots: Trees, particularly those planted near a property, can become a threat to your drainage system. Roots naturally seek out moisture and trees can infiltrate even the smallest cracks in a pipe. Over time, these roots grow larger and exert pressure on the pipe, leading to a collapse.
3. Ageing Pipes: Many homes in the UK still have drainage systems made of clay pipes, which become brittle with age. As they weaken, they are more prone to cracking under even minimal stress, ultimately leading to a collapse.
4. Heavy Traffic or External Pressure: If your drainage pipes run beneath a driveway or road, the weight of passing vehicles can cause the pipes to weaken and eventually collapse. This is particularly true if the pipes were not properly reinforced when installed.
5. Poor Installation: Pipes that were installed incorrectly or with inferior materials are much more likely to collapse over time. This is why it’s essential to use a reputable service like PM247 for all your drainage needs.

Signs of a Collapsed Drain

Identifying collapsed drains early can prevent serious damage to your property and save you from expensive repairs. At PM247, we advise homeowners to be vigilant for the following signs:

1. Frequent Blockages

If your drains seem to be getting blocked more often than usual, it could be due to a collapsed pipe. The collapse restricts the flow of water, causing debris and waste to accumulate and block the drainage system. If you find that plunging or using drain unblocking products only provides temporary relief, it may be time to call in a professional.

2. Slow Draining Water

Slow-draining water in your sinks, bathtubs, or showers is a classic indicator of drainage problems. While this could be due to a standard blockage, if the issue persists, it may indicate that your drains have collapsed, preventing water from flowing properly.

3. Unpleasant Smells

A foul smell coming from your drains is often a sign of waste building up in the pipes. This can happen when a pipe collapses and causes wastewater to become trapped. The odour may be noticeable both inside and outside your home.

4. Wet Patches in the Garden or Sinking Ground

If a drain pipe has collapsed underground, you might notice wet patches, puddles, or areas of sinking ground around your garden or driveway. This occurs because the wastewater leaks from the damaged pipe, saturating the soil. In extreme cases, the leaking water can cause erosion, leading to subsidence or cracks in your driveway.

5. Mould and Damp Indoors

Collapsed drains can lead to damp problems inside your home, particularly in rooms close to the affected area. If you start noticing mould or damp patches on your walls or floors, this could be a sign that water is seeping through your home’s foundations due to a collapsed pipe.

6. Unusually High Water Bills

If your water usage remains consistent but your water bills suddenly increase, you could be dealing with a hidden leak caused by a collapsed drain. Monitoring your bills can help you spot potential drainage issues before they become severe.

7. Gurgling Noises from Drains

Strange gurgling sounds from your drains can indicate trapped air in the pipes due to a collapse. The sound is produced as water struggles to pass through the blockage and air bubbles are forced through the system.

What to Do if You Suspect a Collapsed Drain

If you notice any of the above signs, it’s important to take action as soon as possible to prevent further damage. PM247 recommends the following steps:

1. Contact a Drainage Specialist: The first step is to call in a professional like PM247 to assess the situation. Our team will carry out a CCTV drain survey to locate the collapse and determine the extent of the damage.
2. Limit Water Use: While waiting for a professional assessment, try to minimise your water use to avoid exacerbating the problem. This means limiting toilet flushes, reducing the use of sinks, and avoiding the washing machine or dishwasher.
3. Prepare for Repairs: Once the problem is identified, we’ll discuss the best repair options with you. At PM247, we offer both pipe relining and full pipe replacement, depending on the severity of the collapse.

Cost to Repair a Collapsed Drain Pipe

The cost to repair a collapsed drain pipe can vary depending on several factors. At PM247, we pride ourselves on offering competitive pricing while ensuring the highest standard of work. Below is a breakdown of potential costs associated with repairing a collapsed drains.

1. CCTV Drain Survey

To accurately diagnose the problem, a CCTV drain survey is essential. This involves inserting a small camera into the drainage system to identify the exact location and extent of the collapse. At PM247, the cost of a CCTV survey typically ranges between £100 and £250, but depends on the size of the system and the complexity of the issue.

2. Minor Repairs – Pipe Relining

For small or localised collapses, pipe relining is often the most cost-effective solution. This method involves inserting a flexible lining into the damaged section of the pipe and curing it in place to create a new pipe within the old one. The cost of pipe relining at PM247 typically ranges from £300 to £600, depending on the length of the pipe that needs to be repaired.

3. Full Pipe Replacement

If the damage is extensive, a full pipe replacement may be necessary. This involves excavating the damaged pipe and replacing it with a new one. The cost to repair a collapsed drain pipe through full replacement can range from £1,000 to £3,000, depending on the location and depth of the pipe, as well as the amount of excavation required.

4. Additional Repairs

In some cases, a collapsed drain can cause further damage to your property, such as damp or subsidence. These issues will need to be addressed as part of the overall repair, which could increase the total cost. For example, repairing subsidence or sinkholes could add between £500 and £1,500 to your bill.

5. Insurance Coverage

Many home insurance policies in the UK cover drainage issues, including collapsed drain pipes. We recommend checking your policy to see if repairs are covered. PM247 can provide detailed reports and invoices to assist with any insurance claims.

How PM247 Can Help

At PM247, we’re committed to providing homeowners with fast, efficient, and reliable drainage services. If you suspect a collapsed drain, don’t hesitate to contact us for a thorough inspection and expert advice. We use the latest technology to diagnose, and repair collapsed drain pipes, ensuring minimal disruption to your home.

Our team is available 24/7 to assist with any drainage emergencies, and we offer a transparent pricing structure with no hidden fees. Whether you need a minor repair or a full pipe replacement, PM247 is here to help.

Need Help With A Collapsed Drain?

A collapsed drain pipe is a serious issue that can cause significant damage to your property if not addressed promptly. By recognising the signs early and contacting a professional drainage service like PM247, you can prevent further damage and avoid expensive repairs. If you suspect a collapsed drain, don’t hesitate to reach out to us for a comprehensive inspection and a competitive quote. With our expertise and commitment to quality, you can rest assured that your drainage system will be restored quickly and efficiently.

• Phone: Call us on 0808 258 0440
• Online: Fill out the form on our website to talk to our team