Sinitski Structural Engineering Ltd.
“I made my own drawings and he was always ready and willing to offer suggestions to help me improve areas where there may have been things missing.”
Best Civil, Structural and Environmental Engineers in Ottawa, ON
24 companies listed · all 24 in Ottawa · 2 open weekends · 17 rated 4.5+ · 4 show a licence
Data verified October 18, 2026
Ostan Engineering Inc.
“I had a great experience working with Lokesh and Obinna, I wish I had found them earlier.”
Seasons Consultancy
“We're thrilled with the basement finishing design and progress so far by the Seasons Consultancy team!”
Capacity Engineering Limited
“After a call I got 4 years ago I was finally able to call CEL for some engineering and all I have to say is what a service they provide!”
Design Hvac Experts Inc
“A few quick calculations and changes to air flow distribution throughout the house and a proper filter change and what a difference.”
J.L. Richards & Associates Limited
“Fantastic work and dedication, highly recommended!”
Listed for property owners in and around Ottawa, ON, these 24 companies do engineering work for properties. Listings show the disciplines each firm names on its own website, from structural to municipal site work and environmental assessment, with ratings and quotes from public reviews.
Area overview: Ottawa, ON
All 24 companies we list here are in Ottawa itself. We have 40 companies in Ottawa on file; this page shows the highest-rated 24. The companies on this page are rated from 4.0 to 5.0 across 200 reviews; 17 are rated 4.5 or higher. 2 are open on Saturdays. The services the companies on this page list most often on their websites are structural engineering (3), electrical engineering (2) and mechanical engineering (2). 4 show a licence on their websites. 15 have ten or more years of experience, the longest 135 years. 3 give free estimates and 2 are family- or locally-owned. We have a website on file for all 24 of the companies on this page; all 24 publish a contact page; 23 list a public email and 3 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do any of these firms say they are licensed?
4 of the 24 listings for Ottawa show a licence on their websites. The seal belongs to an individual, so match the name to the person doing your work, and confirm it through the provincial regulator rather than trusting a badge on a homepage.
Carleton Pumping Service
“They will always make sure that any issue is resolved quickly and professionally.”
Geofirma Engineering
“Our project is not an easy one but they hanging in there with us and I will definitely come back with another 5 stars.”
Ottawa Structural Engineering Services Inc
“Sam agreed to come take a look and give a verbal consultation, putting our minds at ease for one of the biggest decisions we would make for a long while!”
Udesign Solutions
“They were all professional, mature and came up with great ideas.”
Keller Engineering
Dawson and Associates
Blastek Engineering Group
Davis Engineering Limited
Wisdom Engineering
Sharpedge Engineering Inc.
“She worked with me to find options that would work with my wall removal/beam and post installation.”
Star Engineering AND Construction Ltd.
“I came in with my project and they were very professional and thorough from start to finish.”
MM Imperial Engineering
“He takes the time to explain his thoughts with the customer.”
Rooney
“I would not hesitate to work with Rooney Irving & Associates again!”
Leekor Engineering Inc
Cunliffe & Associates Inc.
“Always professional large or small projects.”
Concentric Associates International Incorporated
CEP Forensic
Canadian Stebbins Engr & Manufacturing
Why these companies made our list
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