Delivering expert facility maintenance and technical solutions throughout the Montreal area.



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Comprehensive janitorial services for offices, retail spaces, schools, and public buildings, maintaining cleanliness, health, and professionalism every day.
Focused on appearance, hygiene, and comfort, our office cleaning solutions keep workspaces professional and welcoming—no matter the building’s age or layout.
From marble lobbies to industrial flooring, we use proven floor and carpet cleaning techniques to restore appearance, extend lifespan, and maintain safety in changing seasons.
Our trained disinfection services teams use proven methods and products to reduce contamination risks and meet the city’s highest hygiene standards.
Expert outdoor building maintenance for high-rises and institutional facilities alike, preserving Montréal’s skyline views and your property’s professional image.
Our Integrated Facility Services combine cleaning, maintenance, and technical support in one cohesive program, streamlining operations while maintaining full performance visibility.
HVAC system and indoor air quality expertise tailored to our city’s climate and complex facility types, from research labs to downtown offices.
Reliable electrical services for facilities of all kinds, ensuring safe power delivery, efficient systems, and minimal downtime across every type of building.
Smart BAS solutions integrating HVAC, lighting, and security, giving facility managers real-time control, better efficiency, and measurable energy savings.
GDI Ainsworth stands out among commercial cleaning companies in Montreal. Our deep understanding of the local landscape, combined with a century of experience, allows us to provide unmatched service quality and customer satisfaction.
Contact us today to learn how we can support your facility with customized cleaning, maintenance, and technical solutions that contribute to your success and create a clean, safe, and welcoming space.
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Local Experts
Regional Experts
Local Experts
Regional Experts