Technical Trades Services & Facility Management in Sarnia, ON

We deliver comprehensive facility maintenance and technical management services throughout Sarnia and Southwestern Ontario.

Comprehensive Facility Maintenance in Sarnia

From Downtown Sarnia and Bright’s Grove to the Chemical Valley industrial corridor, Lambton College, and the Blue Water Bridge area, our teams maintain essential infrastructure across manufacturing, petrochemical, education, and municipal facilities.
We unite all of the technical trade services you require under one coordinated facility maintenance program, and our expert teams help clients reduce downtime, extend equipment life, and maintain compliance across complex sites.
Sarnia, ON
Units 1, 2, & 3, 759 Evett Street
Sarnia, Ontario
N7S 5N3
P: 519-337-3331
TF: 1-888-393-5553
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Technical Services

Our Sarnia technical teams deliver the expertise, coordination, and technology needed to protect uptime, improve efficiency, and meet the rigorous demands of your environment.

Mechanical & HVAC Services

Specialists in mechanical and HVAC systems provide installation, retrofits, and performance maintenance to ensure consistent, energy-efficient operation.

Electrical Services

Our electrical services include system design, upgrades, and maintenance that improve reliability and support safe, continuous power delivery.

Building Automation Systems (BAS)

Integrated building automation systems connect HVAC, lighting, and energy controls, improving  visibility and simplifying building operations.

Energy Management

With data-driven energy management solutions, we identify savings, optimize usage, and help Sarnia facilities meet sustainability targets.

Design, Build, & Engineering

Our design, build, and engineering services provide end-to-end project continuity, ensuring technical precision and full regulatory compliance.

Integrated Facility Services

Through Integrated Facility Services, we deliver multi-trade coordination under one accountable partner for streamlined performance and measurable results.

Industries Served in Sarnia

We support the industries that are vital to Sarnia’s economy, from petrochemical plants and refineries to education, healthcare, and public facilities, with technical trades and facility management programs built around safety, efficiency, and reliability.

Why Choose Us

GDI Ainsworth’s teams combine decades of local expertise, advanced technology, and certified management systems to keep Sarnia facilities safe, compliant, and performing at their best.

Let’s Redefine Facility Management in Surrey

Partner with our experts to build a maintenance program designed around your specific environment. Contact us to learn how GDI Ainsworth can strengthen reliability, safety, and performance across your operations.

Meet your Experts

Technical Services

Local Experts

Anne Nicholson

Director of Operations

[email protected] 

 

Calen Sansom

Director of Sales

[email protected] 

Regional Experts

Marco Ottavino

SVP Eastern Canada

[email protected] 

 

Randy Carr

SVP Service & Maintenance

[email protected]  

 

Randy Topp

SVP Energy Services

[email protected] 

A century of experience

A future of innovation

GDI's Story Begins

Robertson Janitorial Ltd. began as a small, reliable cleaning service supporting Quebec City’s growing economic landscape. With a focus on consistency and care, the company steadily grew. 

Ainsworth is Founded

Brothers F.C. and C.J. Ainsworth establish an electrical services company that grows into a technical services leader.  

Two Leaders Join Forces

GDI acquires Ainsworth, bringing facility and technical services together in one North American organization.

Celebrating 100 Years

GDI and Ainsworth are uniting under the name GDI Ainsworth: one company, one culture, and one vision for the future.

Thank you for being part of our journey.
Together, we're ready for the next 100 years.