Genesis Drainage

What is Patch Lining in Drain Repair?
– An Overview of the Process

December 3, 2024

What is Patch Lining in Drain Repair? – An Overview of the Process

When dealing with damaged drains, full excavation and replacement aren’t always necessary. Patch lining is a cost-effective and minimally invasive solution for repairing cracks or minor damage in your drainage system. But what exactly is patch lining, and how does it work? Here’s an in-depth look at this innovative repair method.

What is Patch Lining?

Patch lining is a targeted drain repair technique used to fix small sections of a pipe that are damaged, cracked, or misaligned. Rather than replacing the entire drain, this method involves applying a resin-impregnated liner to the damaged area. Once set, the liner forms a strong, durable patch that restores the pipe’s structural integrity.This method is particularly effective for addressing isolated damage without the need for costly and disruptive excavations. Learn more about ourDrain Repairs service and how we use this technique to save time and costs.

The Patch Lining Process: Step-by-Step

Here’s what you can expect during a patch lining repair:

1. Initial Inspection

The process begins with a thorough inspection of the drainage system. Using advanced CCTV cameras, we locate the exact area of damage and assess its severity. This step ensures that patch lining is the most suitable repair option. Visit our CCTV Drain Surveys page to learn more about this crucial diagnostic step.

2. Cleaning the Drain

Before the patch can be applied, the affected section of the pipe must be thoroughly cleaned. This involves removing any debris, blockages, or build-up that could interfere with the repair.

3. Preparing the Liner

A resin-coated patch is cut to the precise size needed to cover the damaged area. The resin is then activated, ensuring it will harden and bond effectively to the pipe.

4. Applying the Patch

The liner is inserted into the drain using specialised equipment and positioned over the damaged section. Once in place, an inflatable bladder is used to press the patch firmly against the pipe walls, ensuring a secure fit.

5. Curing the Resin

The resin is left to cure, hardening into a durable and watertight seal. This step typically takes a few hours, depending on the type of resin used.

6. Final Inspection

Once the patch is fully cured, we conduct a final CCTV inspection to ensure the repair was successful and the pipe is functioning correctly.

Benefits of Patch Lining

  • Minimally Invasive

    No need for disruptive excavation or digging.

  • Cost-Effective

    Targets the specific damaged area, saving time and money compared to full pipe replacement.

  • Durable and Long-Lasting

    The cured patch provides a strong, watertight seal that prevents future leaks or damage.

  • Environmentally Friendly

    Reduces waste and environmental impact by avoiding the removal of large pipe sections.

When is Patch Lining Used?

Patch lining is ideal for:
  • Fixing small cracks or fractures in pipes

  • Repairing minor root intrusions without removing the entire pipe

  • Sealing leaks in sections of the drainage system

  • Addressing damage caused by wear and tear

For more extensive damage, services like Drain Excavations may be required. Our experts can advise on the best solution for your drainage issue.

FAQs About Patch Lining

1. How long does patch lining take?
The process typically takes a few hours, depending on the size and location of the damage.
2. Is patch lining a permanent solution?
Yes, when applied correctly, patch lining can last for many years, providing a durable and watertight repair.
3. Does patch lining reduce the diameter of the pipe?
The liner is very thin, so the reduction in pipe diameter is minimal and does not affect drainage flow.
4. Can patch lining be used for all types of pipes?
Patch lining is suitable for most types of drainage pipes, including clay, PVC, and cast iron.
5. What happens if the damage is too extensive for patch lining?
If the damage is beyond what patch lining can address, we’ll recommend alternatives such as Drain Repairs or Drain Excavations.

Why Choose Genesis Drainage for Patch Lining?

At Genesis Drainage, we specialise in advanced, non-invasive repair methods like patch lining. With state-of-the-art equipment and expert knowledge, we ensure your drainage system is restored quickly and efficiently, saving you time and money.

For more information or to schedule a patch lining repair, visit our Drain Repairs page or contact us directly.

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