Quality

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

Rolled lead sheet is the only lead sheet that meets BS EN 12588. Under this standard, the thickness must be within +/– 5% at any point and the material alloy must be a minimum of 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 properly installed in accordance with the instructions contained in the Rolled Lead Sheet Manual published by the Lead Sheet Training Academy.

Calder carries out dimensional and composition checks on all its engineered lead products, giving you confidence in the quality of the products delivered.

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

Committed to improvement

Our commitment to continually improve the effectiveness of our IMS will be demonstrated through the establishment and monitoring of quality objectives and targets. These measures will be monitored through regular 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 IMS
• Develop and review performance measures for assessing satisfaction with customers and suppliers.