The UK's Growing Rat Problem

Back to Blog
July 23, 2026
3 min read

The UK's Growing Rat Problem

Most people think of rats as a nuisance that turns up in bins or basements. But across the UK, they've become something far more costly: a real threat to broadband infrastructure, capable of knocking out entire towns and even sinking a telecoms company.

The Problem Is Bigger Than You Think

In January 2026, London provider G.Network collapsed into administration under roughly £300 million of debt. A rescue deal from rival Community Fibre fell through, and rat damage was a big part of why. Community Fibre's chief executive, Graeme Oxby, said rodents are drawn to ducts and find fibre genuinely tasty, and that fixing the damage would have been too costly to justify the deal. Things were made worse by G.Network laying much of its cabling under busy roads rather than pavements, meaning repairs meant digging up the street.

It's not an isolated case. In 2023, the Hertfordshire town of Tring lost its telecoms after nesting rats chewed through cabling so thoroughly that engineers needed drills to get through the casing. Around 100 households in Askern, near Doncaster, lost their internet last month after a rat got into the lines. And in Norfolk, provider County Broadband had to reconnect hundreds of customers after what it called an unusually persistent rodent chewed through both the main and backup fibre serving the area.

Why Is This Happening?

Rats gnaw constantly because their teeth never stop growing, and cable ducts give them exactly the resistance they're looking for. The fibres inside are soft enough to double as nesting material, and ducts offer the warm, sheltered space rats seek out.

The shift to full fibre is making this worse, simply because more of this appealing material is going into the ground. Some providers have also switched to biodegradable, soy or corn based cable jackets to cut plastic waste, which turns out to be even more attractive to rats than standard casing.

Scale doesn't help either. Openreach alone maintains a network covering tens of millions of premises, and keeping rats out of shared ducting at that scale is genuinely difficult. A single chewed cable that once might have knocked out a street can now take down hundreds of properties, or help sink a company.

A Smarter Way to Protect the Network

This is the problem CTech Corporation built Rodrepel™ to solve. It's a low toxicity, environmentally friendly rodent aversive that gets built into cables, sheathing, and conduit so the material becomes unappealing to rodents before any damage happens.

Rather than reacting after a cable's already been chewed through, Rodrepel™ works on contact, teaching the animal to avoid the treated surface. That avoidance tends to stick with individual rodents and spread through a colony, so the deterrent builds over time instead of fading.

It comes in a few formats: a solid masterbatch built into cable during manufacturing, a lacquer for cables already in the ground, and a liquid concentrate for coating substations and junction boxes. It's compliant with ROHS, ROHS2, REACH, ISO, APVMA, NEA and EU BPR, and is FIFRA exempted.

A rat helped sink a £300 million broadband company. The question for operators isn't whether rodents are a serious risk anymore, it's what they're doing about it before the next outage.

Get in touch at technical.marketing@ctechcorporation.com to find out how Rodrepel™ can be built into your infrastructure protection strategy.

Visit us at: www.ctechcorporation.com | www.rodrepel.com | www.combirepel.com

Share this article

Need Specialty Chemical Solutions?

Get tailored product support and reliable supply for your requirements. Contact us for a customized quote.