What Is Drain Relining & Do You Need It?

Drain relining is perhaps one of the biggest property maintenance breakthroughs of the past few decades. This revolutionary method is a real game changer in the process of repairing drainage networks, offering a less invasive and cheaper alternative to conventional pipe replacement. Property owners with drainage issues can now use this sophisticated solution that can extend the life of existing systems without the disruption and financial burden of traditional methods.

In this article we aim to explain what drain relining is and the benefits of it for your property…

Drain Relining – The Process

The process for drain relining is one of creating a new pipe inside the existing damaged pipe, basically getting you back on your feet again without excessive excavation. The process begins with a thorough survey using CCTV camera inspection equipment to determine where exactly and what kind of damage there is. After being properly diagnosed, the drainage system is first cleaned to remove any clog, dirt, or encrustation that could make the relining process difficult. High-pressure water jetting is most often applied for this, ensuring that the host pipe is free from dirt before the actual relining process can proceed. After cleaning, the relining material—most often a resin-impregnated liner—is inflated into the defective pipe. This elastic liner can track along the existing drainage system, curves, and intersection to reach under attack areas. Once installed, the liner is inflated with water pressure or compressed air, pressing it firmly into the interior of the original pipe walls. The resin then cures and solidifies, creating a smooth, watertight new pipe within the old one. This “pipe within a pipe” is long term, anti-corrosive, and will seal cracks, holes, and other forms of damage that were destabilising the system’s performance.

Drain Relining – The Benefits

Maybe the best benefit of drain relining is that it requires very little excavation work to be done. Previous techniques of renewing older pipes regularly entailed the digging of huge trenches across driveways, gardens, and even below houses in order to uncover and renew parts of the worn-out pipes. Such general disturbance is costly and time-consuming, as well as having the added aesthetic effect on landscaping and hard-scapes. By contrast, relining drains typically entails no more than a single point of access, such as a “manhole” or inspection chambers that is already there, with the aim of leaving the surrounding structure and environment intact. This makes it particularly beneficial for houses with mature gardens, expensive paving, or architectural features that would be difficult or expensive to replicate after conventional excavation work. The cost benefits of relining drains extend far beyond conserving landscapes and buildings. The reduced labour requirements and faster completion times simply translate to cost savings for property owners. A standard replacement of a drain would involve weeks or even days of work, whereas a relining task is frequently finished within one day. Not only is this cost-effective in direct expenses but also conserves the trouble and potential loss of revenue from prolonged drainage system repair, especially for businesses where business interruption can equate to huge financial losses.

Drain Relining – Durability and Environmental Considerations

The environment also benefits from the use of drain relining because there is less invasive need for heavy machinery and excavation, which means lower carbon emissions as well as less waste material going into landfills. The materials used in modern drain relining are becoming increasingly environmentally friendly, with some companies making volatile organic compounds and other chemically toxic free products. This makes drain relining not only a convenient solution, but an eco-friendly option for homeowners who wish to preserve their green credentials. The durability of relined drains is another significant benefit. High quality relined pipes last decades—most manufacturers offer long warranties on them. The resin liners are also resistant to most of the typical problems that afflict traditional pipes, including root penetration, chemical degradation, and scaling and other material depositing. The smooth interior surface of the new liner also maximises flow rates and reduces clogging potential, which can correct more than one drainage issue in addition to the initial damage that led to the repair.

Drain Relining and Persistent Drainage Issues

The owners of such properties which have perpetual ongoing drainage problems, can easily resolve the kind of issues they face using relining of the drains as it is simply capable of healing cracks, breaks, and pipe sagging that causes seepage into neighbouring soil or incursion of the drainage system by the groundwater. These are not only issues undermining drainage operation but also structural defects if water is repeatedly leaking foundations or beneath surfaced ground. Relining closes off such weak points, protecting the building structure and drainage system from water intrusion. Nevertheless despite so many advantages, drain relining may not be appropriate for every situation. Where a pipe has burst or is in a state of complete misalignment, traditional replacement would be the best method to handle it. Similarly, if there is severe damage to most of the branches of a compound drain system, then traditional repair processes and relining would be warranted. Specialist professionals would need to undertake careful pre-treatment consultation to determine if drain relining would be best suited for a specific case.

Drain Relining and Older Buildings

For owners or potential buyers of older buildings, the availability of drain relining technology can be a key determinant. Having knowledge that the defective drainage system can be reinstated without extensive groundworks can make previously problematical buildings more attractive investments. Similarly, for home or property owners considering the prospect of drainage repairs, having knowledge that the provision for relining exists can dispel concerns over intrusiveness and expense.

Drain Relining – Development

Drain relining technology is continually evolving, and new developments stretch the use of the process into an even greater range of scenarios. Better materials and techniques in liners have enlarged the range of pipe diameters that can now be relined, from low-diameter residential drains to large-diameter city sewers, there are specialised liners for use in specific problem areas, such as pressure pipes or industrial waste-conveying systems. These advances in technology ensure that drain relining stays up to date with regards to solutions for drainage repairs.

Generally, drain relining is a quicker maintenance process for drainage systems that is helpful in a number of respects to property owners. In offering the less invasive, less costly, and more environmentally friendly alternative to conventional pipe replacement, it addresses a number of the problems generally found in drainage repair. As the public becomes increasingly aware of this technology, it will likely be the first choice for solving all types of drainage problems, providing advantages to property owners in the form of increased efficiency, reduced cost, and increased protection of property.