St Helens: details of gas main upgrade in Dentons Green Lane

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Essential works to upgrade an old, underground gas main will take place in St Helens over the October half-term school holidays.

Local gas network Cadent has commissioned work to replace almost 100 metres of pipe that’s reached the end of its safe operating life.

The ageing metallic main under Denton Greens Lane will be replaced with a durable plastic pipe that will have an 80-year lifespan.

It will carry gas used to heat thousands of local homes.

It also gets the local gas network ready to carry greener gases – such as biomethane (now) and hydrogen (coming soon) – both of which are essential for the UK to achieve a ‘net zero’ future.

The gas team will be working in the town centre-bound lane of Dentons Green Lane.

They will work every day, including weekends, starting Saturday 24th October. The work will finish before the end of half-term.

In order to carry out this work safely, with least disruption, Cowley Hill Lane will be closed at its junction with Dentons Green Lane. A diversion route will be signposted.

Multi-way traffic lights will manage a safe flow of vehicles using Duke Street, Boundary Road and Dentons Green Lane.

Some properties – those next to the work area, along this 100-metre stretch of road – may have their gas supply temporarily impacted. Advance warning will be given and supply will be fully restored on the same day.

Cadent manages the network of more than 21,000 miles of gas pipes in North West England, which distribute gas to 2.7 million homes, hospitals, schools, offices and other buildings, as well as to industry and HGV fuel stations.

More than 90 per cent of homes in St Helens are heated by gas.


Cadent is the UK’s largest gas distribution network with a 200-year legacy.  We are in a unique position to build on strong foundations whilst encouraging the curiosity to think differently and the courage to embrace change.  Day to day we continue to operate, maintain and innovate the UK’s largest gas network, transporting gas safely and protecting people in an emergency.   Our skilled engineers and specialists remain committed to the communities we serve, working day and night to ensure gas reaches 11 million homes from Cumbria to North London and the Welsh Borders to East Anglia, to keep your energy flowing. 

Future of Gas: Here at Cadent we support the Government’s plans to reach Net Zero by 2050. That means we’re backing the introduction of hydrogen as a low carbon alternative to natural gas for the future. We know people love the controllability of gas and, with our network already in place, it makes sense to switch to the lower carbon alternative offered by hydrogen, which we believe can keep homes and businesses warm for generations to come.

Cadent manages the national gas emergency service free phone line on behalf of the gas industry - 0800 111 999*

Cadent Gas Ltd is owned by a consortium of global investors.

*All calls are recorded and may be monitored.

Media contacts

Kevin Hegarty

07970 694897