Joule Designs have been in business since 1991 and is a trusted supplier of individual designed Slate Signs and Memorials.. We pride ourselves on the personal touch, proffessionally designing Slate Signs and hand making them in Pamphill. Our Slate Signs by Joule Designs are created especially for you giving our customers something unique at a very competitive price. Joule Designs illustrate designs covering any subject to make a pleasing design to enhance any entrance. Proof sent prior to production. P&P if required. Joule Design Slate Signsare well made & long lasting.