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Regardless of the complexity or the condition of the project, Castonguay Blasting Ltd has proven to be the contractor of choice when bringing an open pit mine on-line and maintaining an aggressive production schedule.

Open pit mineral mining can prove to be quite complex when trying to capitalize on high grade ore while avoiding possible dilution. This is where a knowledgeable drilling and blasting contractor becomes extremely valuable to any mining operation. Working closely with mine production teams throughout Canada, Castonguay’s experienced team of mining professionals continue to bring that added value to the table.

With one of the largest drill fleets in Canada, Castonguay can quickly respond to any changes in drilling equipment requirements to meet mill throughput demand or to overcome undesirable and most often unpredictable natural element conditions.


Armed with 40 years of quarry experience, Castonguay Blasting Ltd works hand-in-hand with each quarry operator to insure that the finished product conforms to the desired dimensions. Due of the proximity of some quarries to populated areas; Castonguay utilizes state-of-the-art seismic monitoring systems to record noise and seismic activity produced by the effects of blasting. With accurate and dependable tracking, quarry operators can effectively meet or exceed regulated standards and still optimize productivity.

When it comes to construction where drilling and blasting is involved, no job is too big or too small!

From major highway right-of-ways to foundations for dams, locks or bridges to site preparation for residential and commercial use, Castonguay Blasting Ltd has the qualified people and the necessary equipment to meet the complete range of drilling and blasting applications

Castonguay has also become known as the go-to specialists to contact when a job calls for the delicate execution of blasting alongside existing sky-scraper foundations in the center of Canada’s major cities.

Castonguay also takes great pride in their efforts to minimize any negative impact on the environment by operating the latest seismic and AOP (air over pressure) monitoring and recording devices to insure that all regulatory standards are met or exceeded.


With the ever increasing demand for energy and communication, Castonguay Blasting Ltd has successfully completed multiple trenching projects throughout Canada in recent years.

Trenching projects typically call for a high concentration of versatile drilling equipment. Because of their extensive in-house fleet of drilling equipment, Castonguay has proven to be able to quickly respond to this high intermittent market demand. Castonguay has worked on multiple projects from British Columbia to Canada’s Maritime Provinces.