A Property Services Company
Your Trusted Commerical Cleaning Partner Serving Toronto and the GTA
Providing dependable, professional janitorial solutions, facility services, and emergency response—delivered with care since 1989.
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About Us
A Full-Service Property Services Company
Sentinel Maintenance Inc. (SMI), a proudly Canadian-owned property services company, is headquartered in Toronto, originally founded in Regina in 1989. Now operating across North America, SMI delivers reliable, high-quality services including daily janitorial solutions, specialized cleaning, post-construction cleanups, and 24/7 emergency response. With a focus on integrity, professionalism, and attention to detail, our experienced team ensures safe, clean, and well-maintained spaces, consistently upholding the values of reliability, quality, and integrity.
SMI takes pride in building long-term client relationships through consistent performance and personalized service. No matter the size or scope of the project, SMI brings the same commitment to excellence across every location they serve.
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Services
Explore our range of services below
Cleaning Services
Reliable, professional cleaning solutions tailored for commercial properties, with exceptional results you can count on
Specialized Services
Custom solutions for unique cleaning challenges, including biohazard cleanup, industrial cleaning, and more
Restoration
Complete restoration services for water, fire, and mold damage, helping you recover quickly from disasters
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Teamwork & Work Culture
Teamwork in Action: Built on Values, Delivered with Purpose
Communication
At SMI, we believe effective teamwork starts with clear, open communication. Our teams operate with transparency—both internally and with clients—ensuring expectations are aligned, updates are timely, and any concerns are addressed immediately. This approach builds trust and keeps everyone on the same page.
Accountability & Reliability
Every member of our team is held to high standards of personal accountability and professional responsibility. At SMI, we don’t just get the job done—we take ownership of our work. Clients can count on us to deliver consistent service, resolve issues efficiently, and stand behind our commitments.
Respect & Inclusion
Our work culture is rooted in mutual respect where every individual—regardless of role—is valued. We foster an inclusive environment where diverse perspectives are welcomed and collaboration thrives. This respectful culture reflects in how we work together and in how we serve our clients.
Continuous Improvement & Training
We’re committed to ongoing learning and development. Through regular training sessions, safety refreshers, and team meetings, our staff stays up to date with the latest best practices and innovations in the industry. This culture of continuous improvement ensures the highest level of service for our clients.
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Health & Safety
Ensuring Safety and Compliance
Understanding
All on-site staff and subcontractors are trained in essential safety protocols, including WHMIS, Worker and Supervisor Health & Safety Awareness, and Working at Heights certification.
Safety isn't just a checklist—it's a core part of our daily operations, embedded in our work culture to protect employees, clients, and every property we service.
Key team members receive additional training in lift operation, scaffold use, and other site-specific safety requirements.
Training
Every team member and subcontractor begins with comprehensive safety training, including WHMIS, Worker and Supervisor Health & Safety Awareness, and Working at Heights (where applicable).
We monitor and renew all safety certifications on a strict schedule to ensure every worker remains up to date with evolving safety standards and legal requirements.
Our leadership team uses a dedicated system to manage training records and track certification expiries.
Years of service
Clients over 35 years
Certified & Qualified staff
Emergency Response
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Areas We Serve
Serving the Greater Toronto Area
Let's discuss your project
Our dedicated team of property maintenance experts is ready to help you maintain your property to the highest standards. Get in touch today.