Powering your projects with our expertise
A practical approach to engineering, delivered by
licensed engineers and trade professionals
Specialized, industry-leading expertise

Electrical Engineering
We provide engineering and design services that power our local hospitals, schools, office spaces and industrial facilities. Whether it’s a new build, renovation or retrofit, we provide expert engineering services, feasibility assessments, and due diligence reporting to ensure safe, efficient, and future-ready solutions.

Integrated Systems Testing
As an independent Integrated Testing Coordinator (ITC), we are the trusted partners to verify that fire protection and life safety systems work together as designed under normal and emergency conditions. As a ULC Listed firm, we develop test plans, oversee implementation, and document results – ensuring compliance with relevant standards and giving building owners confidence in their operations.
Expert solutions across multiple sectors
Why clients choose Lonergan Engineering

Experienced team
100+ years of
combined experience

Practical solutions
Academic and
empirical experience

Trusted partners
A reputation
built on integrity

Industry leadership
An expert in integrated
systems testing
A legacy built on experience

Contact us
Our team would be happy to meet you