Drain Relining

Drain relining is a cost-effective and no-mess alternative to traditional drain repairs. Our non-intrusive methods will ensure your drains are back to perfect working condition in no time, and will remain free flowing for years to come

Relined drainage pipe




This is a method of repairing drains and sewers by inserting a sleeve inside the pipe which once cured adds strength to the pipe and also by making it watertight, increases flow. Any size of pipe work can be repaired using this method. Hot cure and ambient cure methods are used on both Polyester and Epoxy resin. This method of repair is the most financially economical.

A resin impregnated felt is pulled into place and inverted using either water or air. Upon curing, the inversion tube is withdrawn and this creates a pipe within a pipe. If there are any incoming lines these can be exposed using a lateral cutter.



How is the liner installed?

A resin impregnated felt tube is inverted or dragged into the damaged host pipe. A calibration tube is then usually used to inflate and compress the wet out liner to the host pipe to form a pipe within a pipe. The resin is cured by a chemical process, and heat. Once cured in place, the calibration tube is removed; and the drain is then formed and watertight.


Structural Integrity

Drain Doctors Lining Process restores structural integrity to your damaged drain pipes.


Before Lining

After Lining

Localised patch repairs

Typically used in areas where traditional excavation is difficult or with awkward access, localised patch repairs are a fast, cost efficient method of rehabilitating blistered pitch fibre or crushed pipework in diameters of 100 to 450 and to a length of usually 1 metre. Remedial work can include re-forming the pipe if necessary and then installing the patch liner.

Water Authority Standards

We provide an extensive in-depth quotation before undertaking any sewer or drain repair works, works.The most modern and up-to-date sewer renovation methods are used to ensure all works are carried out to Water Authority Standards.


Full drain relining benefits include:


  • CCTV surveys to establish problems
  • Requires no excavation
  • Quick Installation and minimal disruption
  • Forms a structural and durable new pipe within the old
  • Bridges and seals gaps, holes and cracks
  • Resistant to chemical attack or corrosion
  • Increased flow rates
  • Substantial cost saving over conventional reconstruction methods
  • Prevents tree root infestation
  • Suitable for diameter ranges 100 to 1200mm
  • We offer a 10yr guarantee which covers workmanship, parts & materials



No-dig root removal

Drain Doctor Plumbing and Drainage are also experts in removing roots from drains and can refurbish drains using a no-dig solution.

Our cured in place drain and sewer repair system lines a drain and makes it as good as new.

Our no-dig solutions remove the need for costly excavation. Imagine having to dig up your newly laid driveway or beautiful landscaped garden.