John Lawrenson
Managing Director
John has worked in the building materials industry for 15 years and has held a number of senior roles within Saint Gobain since joining the group in 2002. He brings both operational and commercial experience gained in diverse manufacturing environments and installation contracting.
As Managing Director of Saint-Gobain Poles, John is responsible for Calders and Grandidge in the UK and PDM in Ireland.
Shaun McGarry
Commercial & Finance Director
Previously the Finance Director at Ken Wootton Ltd, Shaun joined Calders and Grandidge in 1998 as Finance Manager. Over the years Shaun has also been responsible for IT and marketing as well as financial management of Calders & Grandidge’s sister company PDM in Ireland.
Shaun is also a Director of Lincolnshire Chamber of Commerce and Industry, and Chairman of the Boston Area.
John Secker
Operations Director
John has over 25 years experience in the timber processing industry having started out as a wood machine apprentice with J O Walkers in 1983 before moving into a managerial role with Select Timber Products. After receiving an MBA from the University of Lincoln in 2004 John set up the production mill for Riverside Building Supplies before moving to Calders & Grandidge in 2008. John is responsible for transport, production, quality systems, and stock purchasing.
John is a keen sportsman, and proudly represents Boston in the Lincolnshire Squash Leagues
Rob Lonsdale
Pole and Track Production Manager
Rob has been at Calders & Grandidge for over 15 years, first as a creosote plant operator before becoming the Pole and Track Foreman, and now Pole and Track Production Manager.
Rob’s responsibilities include overseeing the production of the Pole and Track departments, ensuring safety, efficiency, and providing the timely delivery of customer’s orders.
David Johnson
Fencing and Gates Production Manager
David joined Calders & Grandidge in 2003 as a Quality Inspector before joining the fence and gate production team of which he has risen to become manager.
David’s responsibilities include overseeing the production of the Fencing and Gate departments, ensuring safety, efficiency and providing the timely delivery of customer’s orders.