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Office Open 6 am to 6 pm

After hours emergencies, call Peter DeMan, cell 416-678-0250

DeMan Expertise

Our Diverse Portfolio Shows Nothing is Too Big or Too Small - (click each section to see more)
DeMan Major Construction Prjects Porfolio

Harness Our Expertise to Construct Your Dream


About DeMan Construction Corporation

Located in the City of Mississauga at 776 Dundas Street East, DeMan Construction Corp is a design-build and General Contracting company that serves clients throughout Southern Ontario GTA. With over 60 years of experience, DeMan Construction has completed projects for many businesses. Our work is showcased across Mississauga in industrial manufacturing facilities, food production and processing plants, medical and veterinary clinics, retail centers, corporate offices, and transportation facilities. Today, DeMan Construction remains the top construction company in Mississauga and the Greater Toronto Area..


With a long history of satisfied clients, DeMan prides itself on an unwavering commitment to customer service and satisfaction. The company’s devoted and highly skilled staff makes daily operations possible and keeps even the tightest construction deadlines on track.


No project is too big or too small for DeMan’s expert construction team. Mississauga building projects range from $500K to $15M range and each customer receives the same dedicated level of care and attention to detail. DeMan’s service division completes a wide range of smaller projects ranging from $500 to $500K. The service department is equipped to handle a variety of industrial or commercial projects.

DeMan Construction Experts
2 Generations of DeMan Construction
DeMan Construction Team

Robert DeMelo - Plant Manager

Blue Goose Pure Foods (o/a Tender Choice Foods)


Hello Peter,

I just wanted to thank you for your support over the last few weeks.  We appreciate the urgency you mobilized your people with to get us back up and running.  Chachi has been fantastic in terms of his support and getting things done in the plant.  I would highly recommend your services to anyone else that asks.  We will be in touch for any construction work needed going forward.


DeMan Construction Clients

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For any inquiries, questions or free estimates, please call: 905-277-0363 or fill out the following form

Head Office

776 Dundas Street East

Mississauga, ONT L4Y 2B6



Tel:  905-277-0363

Fax: 905-277-0369


To apply for a job with DeMan Construction, please send a cover letter together with your resume to: careers@demancorp.com or upload with button below - Good Luck!

Get a Quote: 905-277-0363
Great Advice: 905-277-0363

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DeMan Construction Team