We provide professional facility maintenance and technical services in Oshawa and across Durham Region.



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Our licensed technicians manage installation, maintenance, and optimization of mechanical and HVAC systems to ensure year-round comfort and energy control.
Comprehensive electrical services cover distribution, lighting, and preventive maintenance, improving reliability and protecting building infrastructure.
We integrate intelligent building automation systems that connect HVAC, lighting, and energy controls to enhance performance and oversight.
Through advanced energy management programs, we identify opportunities for cost savings and help Oshawa clients achieve sustainability goals.
Our design, build, and engineering services ensure seamless project delivery from design to commissioning, aligning with safety and compliance standards.
With Integrated Facility Services, GDI Ainsworth simplifies maintenance by coordinating all technical trades through one trusted partner.
We combine decades of local expertise, certified systems, and advanced technology to deliver consistent, high-performing facility management solutions across Oshawa and Durham Region.
Partner with our Oshawa experts to build a facility management plan that enhances reliability, safety, and efficiency. Contact us to discuss tailored technical solutions that keep your operations running smoothly.
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Local Experts
Anne Nicholson
Director of Operations
Calen Sansom
Director of Sales
Regional Experts
Marco Ottavino
SVP Eastern Canada
Randy Carr
SVP Service & Maintenance
Randy Topp
SVP Energy Services