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Meet Our Friendly Team


John Knight - Founder and Director of John Knight Glass

John Knight - Founder and Director

John has been working in all aspects of the window and door business since leaving school. Previously a director of a large company working on prestigious projects such as the Albert Dock on Liverpool's Water Front and overseeing installations in homes and businesses throughout Merseyside.

John branched out to start his own company in 1984 and what started out as a small family business has expanded into a successful company providing high quality installations throughout the North of England and North Wales.

John maintains his involvement with projects, keeping to his original ethos of providing quality products combined with the latest innovations in the market. He is ably supported by a team of industry professionals, ensuring that John Knight Glass is considered to be one of the leading companies in the field.


Mark Spereall - Installations Director

Mark began his career with John Knight Glass in 1992 as a window and door installer, having previously worked for Everest. He became a director of the company in 2003.

Mark manages the installations using his considerable experience and technical skills to ensure installations are carried out to the highest standard.


Ronnie Mitchell - Surveyor

Ronnie has worked for John Knight Glass for over 20 years having previously worked for Everest. He is an NVQ level 3 qualified fenestration installation surveyor.

Ronnie carries out the technical measuring and surveys to ensure the plans and drawings translate to the desired finished project.


Barry Karlsen - Installations Manager

Barry began working for John Knight Glass after leaving school. He started his career as a window installer before being promoted to Installation Co-Ordinator in 2007.

Barry manages the day to day running of the office and the installation teams. His installation experience proves invaluable when coordinating projects and liaising with clients and suppliers.

Matthew Kelly - Customer Care Officer

Matthew Kelly - Customer Care Officer

Matthew is our Customer Care Officer, his background which has involved providing customer services for a number of National and International Financial Institutions, has given Matthew a strong track record of helping and supporting clients.

Matthew is extremely customer focused, ensuring needs and requests are efficiently attended to and providing a friendly and supportive point of contact for all John Knight Glass clients.