With over 260 years’ experience, Calder is one of the oldest and largest manufacturers of rolled sheet lead which is made using 100% recycled materials and to BS EN 12588.

Rolled lead sheet is the only lead sheet produced to BS EN 12588. Under this standard, the thickness consistency of the sheet must not exceed a tolerance of +/– 5% at any one point and the alloy used must conform to quality of not less than 99.774% lead.

It is this consistency, which means the performance of rolled lead sheet can be predicted with confidence to ensure optimum performance when specified and fitted correctly in any given application.

We are so confident of the quality and longevity of our product that all Calder rolled lead sheet come with a 50-year guarantee, providing it is installed in accordance with our terms and conditions.

Calder is committed to the maintenance of a quality management system (QMS) that conforms to the requirements of ISO 9001:2015 so that we can provide and maintain a consistently high quality in all work undertaken.

We will provide quality products that meet or exceed customer specified, statutory and regulatory requirements, providing a high standard of workmanship.

Our commitment to continually improve the effectiveness of the Q M S will be demonstrated through the establishment and monitoring of quality objectives and targets. These measures will be monitored through management review meetings.

We aim to make Calder and its products the preferred choice of customers and will support this by:

  • Encouraging customer feedback both external and internal with the aim of improving customer satisfaction
  • Encouraging effective communication throughout the organisation to achieve quality objectives
  • Reviewing the competence, training and full involvement of every employee to continually improve the effectiveness of the Q M S
  • Develop and review performance measures for assessing satisfaction with customers and suppliers. Download our  Declaration of Performance