Pitch Fibre Repairs

Popular in the 1960s and 70s, pitch fibre pipes were made from wood cellulose fibre impregnated with carefully refined inert coal tar pitch. It was a revolution at the time due to its sheer length. It was far easier to install than the traditional clay pipes and, therefore, a lot cheaper.


The problems

Due to the makeup of the pipe, it tends to de-laminate/blister or become deformed and flattened/misshapen, leading to blockages and collapsing of the pipes. The pipes can also leak, which in turn attracts tree roots into the pipework.

Although the pitch fibre was considered a good material to make drains from in the 1960s, it soon became apparent it would not be able to stand up to the things put down our drains: cleaning products such as bleaches/fats and other solvents. These all speed up the deterioration and breaking down of the pitch fibre.


Our solutions

We have been carrying out repairs to damaged pitch fibre for several years and have perfected our no-dig repair solutions, which involve reshaping the deformed pipe with our winch system. After this has been carried out, the pipe is cleaned and checked with our CCTV camera, and once we are happy with the re-profiling a CIPP (cured-in-place pipe) structural liner is installed to hold the pipe into shape, stopping any future deformation of the pipe.


Uncertain about the best way to proceed?

We’re always happy to advise.

Get in touch today.



Our gallery


Thank you!

Just to say what excellent workmen that have repaired my drains this week. The work was very professionally, and on completion, was left very clean and tidy. Thank you Elaine Roberts

“Really grateful for the works you have done”

"A policy holder has just rung up and just wanted to say how amazing and great you guys have been today, she could not praise you enough and was really grateful for the works you have done. So just...

“impressed with the proactive and positive attitude”

From the very start i was impressed with the proactive and positive attitude of the contractors. The job was tackled in a very professional manor and i was left in no doubt that the damage to my...

“Our Local Expert”

Putting my confidence in “Our Local Expert” I contacted Drainwizard who arrived that afternoon.. The engineer who came was very pleasant and most efficient in the way he identified and sorted out...

“Thankyou for the Excellent job”

We have to Thankyou for the Excellent job of fitting our new sewage Treatment Plant and removing the old one , the work force were friendly and very helpful and did an amazing job of putting down...

“extremely helpful and obviously very knowledgeable”

I would also like to say that the chap who came out to perform the survey was extremely helpful and obviously very knowledgeable, I will certainly be recommending you to friends, and will use you...

“She could not praise You enough”

A Policy Holder has just rang up and just wanted to say how amazing and great You guys have been Today, She could not praise You enough and was really grateful for the works You have done.  So just...

“such a professional job”

Thank you too, to your engineers for carrying out such a professional job.~ Abbey School  

“great job helping fix them but were also really helpful, nice to talk”

I’ve just had 2 of your guys come and spend 2 days working on our drains and just wanted to let you know that they did a great job helping fix them but were also really helpful, nice to talk to and...

“the boys did a fantastic job”

Hi All completed. I gotta say, the boys did a fantastic job. They did exactly what I wanted and needed. Especially considering the weather. Well done to them. Cheers John