W T Knowles

W T Knowles & Sons Ltd is a family run company which has been producing clay drainage, chimney pots and chimney cowls since 1906. W T Knowles is a manufacturer an extensive range of clay products for sale through Builders Merchants.

The company still maintains many of the traditional clay moulding techniques from the early 20th Century, producing both glazed and unglazed products. The high quality products are manufactured to BS65, BS EN 295 and BS EN ISO 9002 standards.