Over the years ESM-B® products, also known as “Stumm Boxes™” have become the paramount standard for exterior electrical outlet installations in Alberta, B.C. as well as in construction and renovations all across Canada. These original and one of a kind boxes have been installed on all types of structures ranging from single-family homes and garages to many large multi-family and commercial developments. ESM-B® boxes are safe, highly cost effective and incredible time savers.