Founded in 1993, Alston Associates is the geotechnical division of Terrapex Environmental Ltd. that provides engineering, field and laboratory materials testing, and construction inspection services throughout Ontario.
In 2010, Alston was acquired by Terrapex Environmental Ltd., a dynamic, fully integrated Canadian engineering and geosciences company providing specialist environmental consulting services. Our partnership allows us to offer cost-effective solutions for combined geotechnical and environmental consulting services.
Alston believes geotechnical design should be based on the best quality data. The focus of the design is to provide an efficient, cost-effective solution tailored to the Client’s specific needs for the project in hand.
Alston has developed innovative design solutions for ground engineering applications including slope stabilization, landfill liner design and installation, and geotextile reinforced engineered fills.
Alston provides a wide range of services during construction. Our Construction Inspection and Materials Testing professionals are highly experienced in all aspects of inspection and testing and demonstrate innovative thinking to ensure an unsurpassed quality of service and consistent performance.
Alston operates two comprehensively equipped materials testing laboratories; our Toronto facility is CCIL Certified for concrete and aggregate testing. We also offer the convenience of a mobile aggregate testing unit.
Alston provides a range of services to evaluate and monitor the impact of construction activities on neighbouring properties, structures and infrastructure. These services include Vibration Assessments, Monitoring & Control, Condition Surveys and Settlement Monitoring.
Alston prides itself on detailed quality testing and has demonstrated time after time that if there is a value engineering solution, we will find it.