OUR PLAYGROUND : THE WORLD Leader in drilling and blasting of superior quality since 1971, Castonguay Blasting Ltd. has expanded all over Eastern Canada, and even overseas. Leveraging a wealth of experience in its field, Castonguay Blasting Ltd. has the expertise necessary to undertake any size drilling or blasting project in the mining, quarrying and civil engineering sectors. Using tried and true working methods, our team moves several million tons of rock every year! Thanks to our diversified state of the art equipment fleet and our vast expertise, we are able to take on any project you may have. Moreover, since the best drilling equipment on the market was not quite up to our standards, we have developed our own down-the-hole drills whose performance is absolutely outstanding.