Callidus Engineering

Callidus Engineering Experienced Engineers | Making Buildings Work Callidus Engineering is a professional engineering firm with offices located in London and Kingston, ON.

We provide mechanical and electrical engineering services to an ever expanding group of clients in Canada. Our mission is to provide an excellent engineering product coupled with exceptional customer service. The company goal is to develop and maintain a strong profile in the mechanical and electrical consulting engineering field. To this end, we are committed to the growth and development of our

client base and to the personal growth and development of our staff. Drawing from experience working on a variety of project types and sizes, Callidus Engineering endeavours to provide each one of our clients with thorough investigation and thoughtful analysis of the existing conditions. Armed with this information and the valued input of the stake holders and facility personnel, building condition assessments are prepared and refined. Our services are characterized by a "Hands on" approach where the site investigator is also the report developer and cost estimator. The result is a technically superior analysis and an accurate opinion of costs. Callidus Engineering has a staff of over 30 full time employees, including administration. Callidus has 13 licensed engineers, with over 200 years of combined experience, and three additional designers working towards their engineering licences. Callidus Engineering is licensed to provide engineering services in: Manitoba, Alberta, British Columbia, Northwest Territories & Nunavut, Ontario, Newfoundland & Labrador and Saskatchewan.

Construction is continuing on the new Lambton College Residence in Sarnia, where our team was back on site again last we...
05/26/2026

Construction is continuing on the new Lambton College Residence in Sarnia, where our team was back on site again last week, getting a look at the mechanical and electrical systems as they’re coming together. The building is taking shape now!

Once complete, this five-storey residence will add 300 student beds and create new spaces that support day-to-day campus life, including study areas, lounges, fitness space, a café, and outdoor amenities. For students, that means more opportunity to live closer to where they learn. For the broader campus community, it means another step toward a more complete and connected student experience.

Student housing is about more than adding beds. It helps shape how students move through campus, build routines, access support, and feel connected to the place where they are studying

Our London team took some time away from the office late last month for an afternoon of bowling at London’s famous Fleet...
05/14/2026

Our London team took some time away from the office late last month for an afternoon of bowling at London’s famous Fleetway Bowling (An amazing place that we’ve had the honour of doing some work on!).

There was plenty of friendly competition on Lane 17, with Peter putting up the top overall score across three games and Sean close behind with a strong showing of his own. Owen and Russ kept the pressure on, but the final scoreboard suggests a rematch may already be in order.

Outside of the scores, it was a good chance for the team to spend time together away from the office, trade a few laughs, and enjoy a well-earned break from project work. The team that plays together wins together!

Last week, our team was back in Northern Ontario community of Sioux Lookout supporting another modular imaging installat...
05/01/2026

Last week, our team was back in Northern Ontario community of Sioux Lookout supporting another modular imaging installation with SDI Canada.

Luke Reist, EIT was on site for a field review as the MRI addition moves through final construction, working through system performance under active operating conditions, coordination, and tying the modular building into existing hospital systems while maintaining ongoing operations.

Getting there wasn’t exactly smooth. The flight into Sioux Lookout had its share of rolling turbulence, and Luke handled it the same way he approaches the work on site, steady and focused. Huge thanks to him as always for making the trip and putting in the time where it matters.

These projects continue to show what modular imaging can deliver, expanding an existing hospital with a purpose-built MRI space, integrated with mechanical, electrical, and life safety systems, without the timelines of a traditional addition.

For communities like Sioux Lookout, that means faster access to diagnostic imaging, reduced travel for patients, and more resilient healthcare infrastructure in regions where it’s needed most.

Our team spent Earth Day last week getting outside and cleaning up the communities we work in, continuing a tradition th...
04/29/2026

Our team spent Earth Day last week getting outside and cleaning up the communities we work in, continuing a tradition that’s become part of how we operate each year, with staff across Kingston, London, and Kitchener-Waterloo taking part.

In Kingston, the group focused on the Cataraqui River, where one of our team actually managed to pull an abandoned shopping cart out of the river! In London and Kitchener-Waterloo, teams worked through the areas surrounding our offices, picking up anything left behind and leaving the spaces noticeably cleaner.

Each team wrapped up with a well-earned lunch together, a chance to reset after some time outside working to leave things a little nicer than we found them.

It’s a straightforward effort, but it reflects the same mindset we bring to our work. Mechanical and electrical design decisions have a direct impact on energy use and environmental performance, and our focus stays on environmentally conscious designs that hold up over time.

We Make Buildings Work. The work behind that is only possible because of the people who keep everything moving, and that...
04/22/2026

We Make Buildings Work. The work behind that is only possible because of the people who keep everything moving, and that's what we're highlighting on this Administrative Professionals Day.

Across our offices, our administrative team supports every part of the business. They keep financial processes on track, keep teams organized as priorities shift, and handle the day to day coordination that keeps work moving without things slipping through the cracks.

Amie Pierson, Catherine Wauthier, Dawn Schaefer, Erica Peckham, Susan Murray, and Stacey Lively each play a critical role in supporting our teams and keeping operations running smoothly.

This year also marks a transition for someone who has been a part of that foundation for a long time. After 10 years with Callidus Engineering, our own Misi McKone has retired. Her contributions to our accounting department and growth have left a lasting mark on the team, and we wish her the best into the future!

To say we are grateful for the work they put in will always be an understatement. It’s through their essential contributions that we’re able to continue to Make Buildings Work.

Achieving a P.Eng. is a big moment in an engineering career. It reflects years of focused effort, hands on experience, a...
04/21/2026

Achieving a P.Eng. is a big moment in an engineering career. It reflects years of focused effort, hands on experience, and a commitment to doing the work right.

Our own Gustavo Pereira has reached that milestone and is now a licensed Professional Engineer!

Gustavo brings more than a decade of electrical design experience to Callidus Engineering, building on his background as a professional engineer in Brazil and his continued development here in Ontario. He’s known for his steady approach, strong technical judgment, and the care he puts into getting the details right.

Reflecting on the milestone, Gustavo shared, "I'm happy to receive my P.Eng. licence. It is an achievement that reflects years of dedication, experience, and commitment to the engineering profession. I’m excited for what’s ahead and ready to take on new challenges."

Gustavo is also someone our team genuinely enjoys working with. He brings a collaborative mindset to every project and consistently raises the level of both the work and the people around him.

We were on site last week at the Carpenter’s Union Hall Addition in London for a final look at the completed space.The p...
04/16/2026

We were on site last week at the Carpenter’s Union Hall Addition in London for a final look at the completed space.

The project includes a 5,100 sq. ft. addition with a mezzanine, with new mechanical and electrical systems integrated into the existing building. Rooftop HVAC, duct distribution, gas piping, plumbing, lighting, controls, and fire alarm all needed to connect cleanly with what was already in place and perform as intended.

With the addition now complete, the facility has expanded space to support training programs for future carpenters, and It’s always rewarding to see the finished design in use on site.

Today is a huge day for the team here at Callidus Engineering!Two of our team members, Derek Reid and Jason MacDonald, w...
04/01/2026

Today is a huge day for the team here at Callidus Engineering!

Two of our team members, Derek Reid and Jason MacDonald, will be joining the brave crew of the Artemis II mission launching at 6:34 p.m. EDT today!

Our brave team is going along to do some initial feasibility studies and technical analysis for adapting Callidus Engineering designs and principles to meet the increasing demand for future lunar condominiums, commercial developments, community gathering spaces, and more.

Adapting terrestrial mechanical and electrical design for lunar gravity is a huge task, and our team has the depth of experience to make it happen.

Even on the surface of the moon, We Make Buildings Work!

On March 18, our Kingston team traded drawings and deadlines for a night at Slush Puppie Place, taking in a Kingston Fro...
03/31/2026

On March 18, our Kingston team traded drawings and deadlines for a night at Slush Puppie Place, taking in a Kingston Frontenacs game together. With some of the kids of Team Callidus in attendance, the evening took on a bit more energy and a great time was had by all.

Partway through, Callidus Engineering appeared on the big screen, which got a reaction from our group and added to the moment. On the ice, the Frontenacs carried a strong game through to a 4–2 win against the Barrie Colts, keeping the home crowd engaged right to the final buzzer.

It was a great night to spend time together outside of work and to be part of the atmosphere in Kingston, supporting the local team alongside the rest of the community and our team.

International Women’s Day is a reminder that progress in engineering did not happen by accident. For generations, women ...
03/08/2026

International Women’s Day is a reminder that progress in engineering did not happen by accident. For generations, women were excluded from the education, training, and professional opportunities in this industry. The work of changing that reality is still ongoing, and the AEC sector continues to benefit from every step forward.

Today, women make up more than 30% of the team at Callidus Engineering. We are proud of that progress, and we know there is still more to do. Creating opportunities, supporting careers, and removing barriers are part of building a stronger profession for the future.

Address

1385 North Routledge Park Unit 9
London, ON
N6H5N5

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 5pm

Telephone

+15194727640

Website

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