Drain relining is the go-to method for repairing drains cost-effectively and conveniently. But how much should you expect to pay?
If left in disrepair, the cracks and defects in drainage can start to cause problems. This can be anything from leaks and foul smells to more serious problems like structural damage and subsidence.
Drain relining works by adding a protective layer to the inside of the drain. This forms a coating to protect against cracks and other defects.
This article will cover the costs of drain relining, factors that affect the cost, plus other common questions around their use.
Drain Relining Cost Per m²
The prices below are for a straight run (no cuts) drain relining. Prices exclude VAT.
|Pipe Diameter / Service||National Average||Typical Range||Low End – High End|
|100mm||£80 / m²||£65 – £110 / m²||£50 – £125 / m²|
|150mm||£120 / m²||£100 – £130 / m²||£90 – £150 / m²|
Factors Affecting Cost
Has a CCTV Survey Been Conducted?
A CCTV survey identifies the exact issue with the piping and its precise location. Only then can a contractor have a better understanding of more specific price calculations.
The costs for the pre-inspection CCTV survey when we conducted this research averaged around £88 extra. However, there are different types of CCTV that have slightly different prices, as seen below.
|Type of CCTV Drain Survey||Average||Typical Range|
|Look & See Survey||£75||£60 – £140|
|Recorded Survey||£100||£65 – £150|
|Full Report & Recorded Survey||£130||£70 – £220|
Site and Vehicle Access
The locations and number of access points or manholes the drains have and how many connections are within the drains.
Number of Lateral Cuts
Once the drain is relined, it usually blocks pipe intersections. Lateral cuts allow the water to flow through the intersection. More cuts increase the price.
Existing Pipe Condition
A contractor will ask the reason for the lining. In combination with the CCTV survey, this gives them a good understanding of the repairs needed.
High-pressure water jetting is then needed to break up debris or other substances are found within, around, or attached to the drain or pipe. This removes blockages and builds to help restore the optimum flow within the pipe.
Overheads and labour costs tend to be higher in the south of England, particularly in London.
If the contractor needs to travel beyond a certain radius, then they may add an extra fee on top. Unless you live in a very rural location or want to use a tree surgeon that operates further afield, you shouldn’t need to pay extra.
What to Look for When Hiring a Drain Relining Contractor
When looking for a contractor, ensure they meet the standards set by industry regulators. If the drain relining is installed to WIS (Water Industry Specification) standards, the liner life is 50 years.
Contractors should be able to offer lengthy guarantees and warranties of at least 5 years minimum. Keep in mind that most relining should be able to be completed within a day.
Some of the certifications to look out for when considering contractors for the job include:
- NADC – National Association Drainage Contractors
- WJA – Water Jetting Association
- CHAS – Contractor Health and Safety Assessment Scheme
- Achilles UVDB – Utility Vendor Database (UK)
Get Prices on Draining Relining Near You
We’ve done our best to give you a good idea of what you can expect to pay for drain relining.
However, our guides are not a substitute for a fixed written quote specifically for you.
We work with all the best drain relining experts ready to price your job. Get free, no-obligation quotes in your local area and compare prices using the form below.
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