Signs you need pipe relining help
- A camera survey shows cracks or fractures
- Roots keep entering the pipe at the same joint
- A joint has slipped, and the same block returns
- A drain leaks into the ground
- The pipe holds its shape but shows wear
Pipe Relining explained
Pipe relining repairs a damaged drain from the inside. A resin liner goes into the old pipe while it is soft, then hardens to form a new pipe within it. The work uses existing access points, so there is little or no digging.
Relining suits cracks, joint faults and root entry. However, it does not suit a pipe that has collapsed. A CCTV drain survey shows which case you have.
Compare it with digging up the pipe, which the page on drain excavation explains, since the two suit different faults. The wider guide to drain repairs covers every option. Read both before you choose.
Patch lining for a short damaged section
Patch lining repairs one short section of pipe. A resin patch goes over the crack or break and sets in place, while the rest of the pipe stays as it was. This can suit a small fault.
Patch lining can suit a cracked clay pipe when the damage stays limited. A camera survey shows whether a patch is enough or the whole run needs lining. less.co.uk puts a single patch at about £200 to £600, while a written quote gives the real price.
How a job usually runs
- 1. Survey the pipe
A camera survey shows the damage and the pipe shape. It tells you whether relining can work, since collapsed or crushed pipes usually need digging. Ask for the footage.
- 2. Clean the pipe
The pipe must be clean before a liner goes in. Roots and scale come out by cutting or jetting, although the exact method varies. Skipping this step weakens the repair.
- 3. Fit the liner
A resin-soaked liner goes into place and presses against the pipe wall. It then hardens, although the time depends on the product. Ask how long the pipe must stay out of use.
- 4. Check the result
A second camera run shows the new lining. Ask for the footage and a written record, since both help if a fault appears later. Keep both for your files.
What to ask the engineer
The engineer who takes your job runs a separate business, so the engineer sets the price, the arrival time and any guarantee. Use these questions to compare quotes, since answers differ from one engineer to the next. Write the answers down, because a written note helps if the job changes.
- Can my pipe be lined, or does it need digging?
- Is a patch enough, or do you advise lining the whole run?
- What guarantee covers the work, and for how long?
- Will you give me before and after footage?
- Does the price include cleaning the pipe first?
What it can cost
less.co.uk gives £1,500 to £4,000 for a full domestic relining job. These are UK guide ranges, not Dundee quotes. Length, depth and access still change the price a lot.
less.co.uk puts a single patch repair at about £200 to £600. Ask for a written quote that names the length of pipe and the method. Compare two quotes, since repair prices vary widely.
Pipe Relining questions answered
What are the disadvantages of pipe relining?
It does not suit a pipe that has collapsed or lost its shape. A liner can also narrow the pipe slightly, while a camera survey shows whether relining is a good choice for your drain. Ask the engineer about both points.
Can a cracked clay sewer pipe be patched?
Often yes, when the damage stays within a short section. Patch lining repairs that section from inside the pipe, while a survey shows whether a patch is enough or the whole run needs lining. Ask for a written quote.
How long does drain relining last?
Book A Builder gives a life of 20 to 50 years, although the result depends on the pipe, the liner and the quality of the work. Ask the engineer what guarantee covers the work. Keep the paperwork.
Is drain relining worth it?
It can be, when a pipe has cracks but still holds its shape. It avoids a large dig and the cost of surface repairs. The full-job range is £1,500 to £4,000 in two UK guides, so compare quotes.