Delivering creative, responsible, and efficient engineering solutions since 1955.
Jablonsky, Ast and Partners is a leading structural engineering consulting firm headquartered in Toronto, Ontario.
With unrivalled experience across the GTA and expertise spanning across Canada, we help our clients solve unique structural challenges with exceptional design, a flexible approach, and transparent communication.
Our Expertise
It’s what’s on the inside.
We see ourselves as stewards of each of our clients’ projects and leverage our expertise to provide structural design that will keep material and labour costs appropriate during construction, no matter the project.
Explore a sample of the buildings, structures, and materials we work with and some of the special ways we apply our expertise.
Our Projects
Taller. Stronger. Safer.
Jablonsky, Ast and Partners has designed structures and structural improvements for thousands of buildings in the Greater Toronto Area and beyond for over seven decades.
View a curated collection of some of our favourite and more recent projects.
About Us
Stewards of structural design.
We take pride in leaving a positive and visible impact on our built communities. We don't shy away from difficult challenges - our employees consider multiple approaches to determine the best solution for the problem at hand. With this mindset, we've delivered innovative structural design for our clients since 1955.
Careers
Inner strength.
ACCOLADES & RECOGNITION
Recent Awards
Ontario MAC
2022
Ontario Concrete
2022
Heritage Toronto
2022
Ontario Concrete
2024