Waste & Sustainability for Dual Seal - Core

Core Facility

Waste & Sustainability for Dual Seal

Dual Seal is one of the UK’s leading glass specialists and produces high performance noise insulating and low emissivity glass units for the construction industry at its 100,000 sq ft site on Leeds Road in Huddersfield, where it employs 135 people.

The Challenge

Simon Knapper of Dual Seal said the firm’s focus has always been to develop products that support the rigorous environmental compliance in the construction sector, with low emissivity and solar control glass reducing the amount of energy used for heating and cooling buildings.

With improved segregation of metal, card and plastic waste, they realised they could boost recycling levels and reduce costs, leaving more money for investment in the business.

Our Solution

Core Facility Services’s waste and recycling contract with Dual Seal Glass will drive sustainability at the manufacturer’s Huddersfield site.

Simon said the move would support the firm’s own sustainability goals as well as those of its commercial clients.

He said Core will help Dual Seal keep the environmental impact of its business activities to a minimum and further enhance its position in a sustainable supply chain.

He said: “Core’s understanding of waste, energy and sustainability means we are on the same wavelength and the waste solution they have developed supports our environmental strategy as well as saving us money.”

Core and Dual Seal are both independent family businesses which have been operating in Huddersfield since the 1990s.


Dual Seal shares many of our values, both environmentally and in terms of customer service and an emphasis on investment in people, training and processes.

Going forward our role will be to manage suppliers, keep services under constant review and take care of all compliance issues on their behalf.