Liam SmithTaking care of our land and buildings is one of the most important things we can do. You could be managing a facility that needs to meet provincial safety standards or a homeowner needing asbestos removal, and you’d still need professional assistance.
But finding sustainable solutions from a reputable agency needs careful research. You want a firm that’s strict about site safety and compliance.
So, we’re helping you get the right advice. We’ve rounded up the best environmental consulting agencies in Ottawa with deep knowledge and backgrounds that offer a variety of services and are serious about eco health!
How much does environmental consulting cost in Ottawa?
The cost of hiring an environmental consulting agency in Ottawa ranges from $2,000 to $35,000 for standard assessments, while complex site remediations and custom IoT (Internet of Things) setups can reach $100,000 or more.
| Service / Role | Estimated Cost |
| Phase I Environmental Site Assessment (ESA) | $2,000 – $5,000 |
| Phase II Environmental Site Assessment | $5,000 – $35,000+ |
| Environmental Impact Study (EIS) | $4,000 – $60,000 |
| Remediation & Site Cleanup | $15,000 – $100,000+ |
| Junior Field Technicians | $75 – $100 / hour |
| Mid-Level Consultants | $95 – $150 / hour |
| Senior Principal Engineers | $150 – $250+ / hour |
| IoT Hardware and Setup | $5,000 – $10,000+ |
1. Dillon
Website:https://www.dillon.ca/
Address: 560 Rochester Street Suite 500
Contact: 613-745-2213 | [email protected]
Hours: Tuesday-Friday 9:00 AM – 5:00 PM
Canadian and employee-owned company Dillon has been in Ottawa since 1961, bringing decades of experience and local roots to site contamination management.
They offer a strong mix of environmental science and municipal engineering services under one roof, which is a super convenient aspect.
This firm also stands out for giving local clients access to specialised environmental teams.
We recently talked to a commercial developer who used their services. The crew received praise for how smoothly they handled site regulations.
Just keep in mind that they aren’t exclusively an environmental consultancy since they also handle bridge infrastructure and transportation planning. So, if you want a boutique agency strictly focused on eco-assessments, this large setup might feel a bit broad.
2. SLR Consulting Ltd.
Website:https://www.slrconsulting.com/ca/
Address: 2301 St. Laurent Boulevard, Suite 400
Contact: 613-725-1777
Hours: Monday-Friday 8:30 AM – 5:00 PM
SLR Consulting Ltd. impressively handles projects from the initial design all the way to end-of-life remediation. They partner with clients across the entire project lifecycle, offering practical solutions that support successful project delivery.
They also bring together scientists and data modelers to provide strategic guidance and practical delivery. This setup makes them a fantastic choice for industrial facility managers needing long-term compliance support.
Most importantly, they treat sustainability as a way to balance economic value and social resilience. To ensure this is done, their cross-disciplinary team highly encourages collaboration across different technical services.
However, they have a shorter history in the country compared to some older competitors since they only began their local operations in 2007. If your project requires an agency with better historical archives, you might need to look elsewhere.
3. OIES
Website:http://www.oies.ca/
Address: 150 Elgin Street, 8th Floor
Contact: 613-366-5226 | [email protected]
Hours: Monday-Friday 9:00 AM – 5:00 PM | Saturday 9:00 AM – 2:00 PM
One of our picks is OIES because their technicians hold actual science degrees and post-graduate certifications. They don’t just rely on standard industry courses to do their jobs, ensuring scientific expertise across the board.
They have an independent testing model, which is fantastic for residential homeowners looking beyond standard home inspection. For instance, you can call them for asbestos and mould testing.
And since they stick to testing, not removal services, you have peace of mind that they won’t upsell other services. Instead, they stick to transparent, scientific results.
Their focus is quite narrow, though, since they strictly handle indoor hazards and designated substances assessments. If you need outdoor land remediation or large-scale groundwater testing, this firm may not be the right fit.
4. CM3 Environmental Inc.
Website:https://cm3environmental.com/
Address: 5710 Akins Rd
Contact: 613-838-2323 | [email protected]
Hours: Monday-Friday 9:00 AM – 5:00 PM
We like CM3 for bringing in environmental scientists and specialised geologists to tackle both indoor and outdoor issues. This gives them the experience to navigate strict provincial regulations.
Their roster even includes professionals with Qualified Person status under Ontario Regulations 153/04 and 406/19, allowing them to provide compliant environmental assessments.
Service-wise, they’re an end-to-end solution for excess soil compliance. This includes soil assessment and reuse planning, making them a top choice for developers and general contractors on large, complex projects.
However, one drawback is their reliance on outside help for certain physical tasks. Sure, they partner with external licensed contractors to perform underground tank removals, so you have to deal with a secondary party for the extraction work.
5. Englobe Corporation
Website:https://www.englobecorp.com/en-ca/
Address: 2713 Lancaster Road, Suite 101
Contact: 613-748-1415 | 888-979-6772
Hours: Tuesday-Friday 8:30 AM – 5:00 PM
With over 65 years of experience in engineering and environmental work, Englobe Corporation has earned our trust in delivering innovative solutions. Plus, they have access to a massive national network, giving you better reach to more professionals.
Their approach includes the mindset of radical caring and positive intrapreneurship, allowing them to provide personalised client service.
To top it off, they combine professional consulting with turnkey project implementation for a highly streamlined experience.
Even better, they can tackle a variety of major infrastructure tasks with their massive 4,000 employees and occupational health and safety certifications for their Ontario sites.
The catch is their specialised lab testing. Their accredited testing laboratory is specifically located in their Laval office, so local soil or water samples need to be shipped out of town for processing.
