A Bradford-based business has won its eighth contract at a nuclear power plant.

Controlled Demolition Group has been helping decommission the Trawsfynydd nuclear power plant in North Wales since 1997.

So far the team has been responsible for demolishing the boiler head, incinerator building, boron dust building and turbines at the plant in Blaenau Ffestiniog.

The latest contract, which is worth £1.6 million, will see Controlled Demolition use traditional demolition techniques to bring down the main turbine hall.

Alan Parsons, decommissioning project manager for British Nuclear Fuel, said: "Trawsfynydd had a poor safety record in our company before Controlled Demolition Group started work.

"They have been a major contributor in making it the group best for contractor safety.

"Controlled Demolition Group's good planning, stringent risk assessment and the constant vigilance of their well-trained supervisors means there has been no accident or incident throughout the years they have been on site. This is a major factor in the number of repeat contracts we have awarded."

The massive bombproof turbine hall, which was built in 1961, is 77 metres wide, 110 metres long and 43 metres tall at its highest point.

The process began last month with a four-week stint to remove asbestos contaminated concrete panels.

Controlled Demolition will return to the site in the new year once BNFL has re-routed mains services away from the hall. The firm will then use a state-of-the-art, ultra-high reach excavator - which has a 42 metre reach - and long reach excavator to bring down the 18 inch thick fireproof hall walls.

The project also includes dismantling three concrete water tanks in the hall roof, plus 12 transformer loading bays leading from the main building.

Darren Palin, Controlled Demolition Group managing director, said: "We would have expected the project to take 54 weeks to complete, but using our ultra-high reach and long reach excavators we anticipate completion within 46 weeks."

The 18,500 tonnes of rubble from the demolition will be crushed for use as backfill and 5,000 tonnes of steel will also be recycled on site.