Comprehensive facility maintenance and technical expertise supporting businesses, institutions, and industrial operations across London and Southwestern Ontario.



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Comprehensive janitorial services tailored to daily operations, delivering a consistently clean, safe, and welcoming environment across offices, institutions, and industrial sites.
Reliable office cleaning services that support productivity and professionalism by keeping workspaces, meeting rooms, and shared areas fresh and hygienic.
Specialized floor and carpet cleaning methods that protect and restore flooring surfaces, improving appearance, durability, and safety throughout your facility.
Our Clean for Health program combines routine cleaning and targeted disinfection to minimize risks and promote a safer, healthier indoor environment.
Professional window cleaning and exterior maintenance services that enhance natural light, improve curb appeal, and ensure a positive first impression.
Integrated Facility Services, a complete, unified solution combining janitorial and technical support to simplify management, reduce costs, and improve overall operational performance.
We design, install, and maintain mechanical and HVAC systems that ensure comfort, indoor air quality, and energy efficiency. Our certified technicians provide proactive maintenance and responsive service for uninterrupted operation.
From lighting upgrades to full electrical system management, our licensed professionals deliver safe, code-compliant solutions that enhance reliability and reduce energy consumption.
Our Building Automation Systems integrate HVAC, lighting, and energy management into one intelligent platform, improving control, optimizing efficiency, and supporting smarter facility operations.
Partnering with GDI Ainsworth means working with an experienced facility services provider focused on reliability, innovation, and client satisfaction. We deliver measurable results that enhance performance, sustainability, and safety across every service.
Every facility has unique needs, and we’re here to help you meet them. Contact us to explore customized cleaning, maintenance, and technical service options designed for your operations in London. Our local team is ready to support your goals with responsive, reliable solutions.
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Local Experts
Claudio Marcovecchio
Regional Vice President of Operations, Western Ontario
[email protected]Â
Dina Andre
Office Manager / Assistant
[email protected]Â
Regional Experts
Joseph Caranci
Senior Vice President, Operations – Central
[email protected]Â
Local Experts
Anne Nicholson
Director of Operations
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Calen Sansom
Director of Sales
Regional Experts
Marco Ottavino
SVP Eastern Canada
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Randy Carr
SVP Service & Maintenance
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Randy Topp
SVP Energy Services