H. Imbleau and Son is one of the oldest family owned businesses in Canada. The company is known internationally for its tradition of shaping liquid steel into manhole covers and other specialty items. The strength of this Renfrew tradition is in the family values of hard work and dedication; unlike many other business like it, the work at Imbleau is done today in much the same way it was done by the company's founders. H Imbleau and Son Ltd. 613-432-2622