As with all industries, the materials we utilise change over time. This can be for a number of reasons; technological advances, changing needs, or indeed just a difference in fashions.

Within the drainage industry, we have moved away from using cast iron to construct our pipe network with the invention and wide-scale production of PVC.

In this blog, we will outline the problems with using metal piping, as well as issues to watch out for if you still have a metal system.

Why You Should Switch to a PVC Drainage System

The drainage industry’s use of PVC materials does not merely come down to cost and pinching pennies; although PVC is indeed more affordable than cast iron, this is just one of the many benefits the material provides.

Why You Should Switch to a PVC Drainage System

Corrosion: It does not take a lot of time for iron to rust. There is enough moisture in the air to cause the reaction, and the speed at which it happens will only speed up as this increases. For example, a cast iron tool that is continuously being handled will rust faster than something left alone.

Now consider how fast and thoroughly iron within a water drainage system will rust with water continually travelling through it! Eventually, rust will move through the entire pipe, leaving its structural integrity incredibly compromised.

The best situation you can hope for is that a crack will appear which will let water escape, creating a damp spot in a wall or somewhere similar. From here you can take the necessary measures to get everything fixed before the problem becomes too severe.

However, it is also possible that a wholescale collapse will take place. This can lead to widespread flooding and several thousand pounds of water damage in little to no time.

Calcification: Areas that struggle with hard water will know fine well about the problems limescale will cause. This is because the water is full of heavy minerals which will accumulate into large deposits on the walls of the pipe which water will struggle to flow past.

One option is to get your pipes cleaned professionally on a regular basis, but this is not foolproof. PVC pipes, on the other hand, will help to offset this problem as they are significantly more resistant to the minerals within hard water building up by clinging to the side.

Drainage Systems in Old Houses

Buying an old house can be very tempting, and the amount of character and build quality that they can boast is incredible. However, they can also come with a lot of problems which have developed over time which need to be addressed. One of the more common ones is a compromised drainage system.

Drainage Systems in Old Houses

While many people complain that newly built houses have paper-thin walls and poor-quality materials one thing that has not declined is modern drainage. Because of the metal pipes used in historic building drainage, now that they have aged 70, 80, even one hundred years, they are far past their best.

If you are making a significant investment in an old home, it is crucial that you have a CCTV drain survey carried out. Although it might seem like an unwelcome expense and an unwanted effort, it could end up saving you several thousands of pounds.

If you buy a house which soon after requires a drainage overhaul, your costs will be increased significantly. This is especially true if a critical failure has occurred which has led to significant amounts of water damage and flooding.

By feeding what is essentially a high-resolution camera on the end of a reliable and robust wire through a drainage system, we are able to show precisely what is going on inside. This means we can reveal all of the cracks, blockages, and potential problems for the future.

Our CCTV drain surveys are very reasonably priced, and we can outline all of the information you need to do in the form of a document and DVD.

By carrying out this service you can make sure your investment is genuinely worthwhile, and not just a nightmare dressed up nicely!

Get in Touch

Our drainage technicians are trained to the highest standard and have many decades of experience between them.

Drainage system problems don’t just occur between the hours of 9-5, so we make ourselves available all the time. We have teams based throughout the country which are ready to respond to your emergency call and have an average response time of just 1-2 hours.

To speak to one of our operators today, give us a call on 0808 164 0776.

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ReviewsWhat our customers have to say about us
  • 14/10/2025

    Bang on time, job done fast.

    Turned up bang on time and were done quicker than expected. Cheers lads! Was expecting a drawn-out job, but they clearly knew what they were doing and just cracked on.

  • 10/10/2025

    Explained everything so simply.

    I had no clue what was going on with our pipes but they explained it all so clearly. Felt completely reassured the whole time and appreciated how patient they were with my questions.

  • 18/09/2025

    Down to earth and skilled.

    Really down-to-earth team who know what they’re doing. Cheers for the help. From the moment they turned up, it was clear we were in good hands. They made the whole process simple and stress-free.

  • 17/09/2025

    Didn’t let us down.

    They were recommended by a mate and didn’t disappoint. From the first phone call to the final clean-up, it was clear they knew their stuff. We felt confident we were in good hands the entire time.

  • 18/08/2025

    Surprisingly brilliant.

    Never thought I’d be raving about a drain company but here we are. They were just that good. Helpful, friendly, honest – and most importantly, they fixed the problem without any stress.

  • 18/08/2025

    Detailed and really useful.

    Had a CCTV survey done. Report was super detailed and made it easy for our builder.

  • 17/08/2025

    Garden sorted, no more flooding.

    Cheers to Clark Drainage for getting our garden sorted after that downpour. Great job. We’d tried a few things ourselves with no luck, but they came in, identified the issue quickly, and had the drainage working perfectly again.

  • 17/08/2025

    Quick turnaround and sorted fast.

    The lads came out next day and fixed the issue in half an hour. It had been bothering us for weeks, so to see it sorted that quickly was honestly a huge relief.

  • 16/08/2025

    Did it right first time.

    We’d had other companies round who couldn’t fix it. Clark Drainage had it sorted in one visit. The difference in professionalism and competence was night and day. Absolutely brilliant from start to finish.

  • 14/08/2025

    Proper pride in their work.

    It’s not glamorous work but they do it with a smile and real pride. Can’t say I’ve ever seen someone so happy clearing a drain, but they made the whole thing stress-free and even a bit fun.