Business Details
50+ Years
experience
Emergency
services
Your Trusted Construction Partner in Mississauga
De Man Construction has been a trusted name in the construction industry since 1955, serving clients across Southern Ontario and the Greater Toronto Area. Our expertise spans industrial manufacturing facilities, food processing plants, medical clinics, retail centers, corporate offices, and transportation facilities, with projects ranging from $500,000 to $15 million. Our dedicated team ensures even the tightest deadlines are met while maintaining meticulous attention to detail. With over 60 years of experience, we combine proven methodologies with innovative solutions to deliver high-quality results. Our service division handles smaller projects between $500 and $500,000, offering the same level of commitment regardless of scale.Client satisfaction remains our top priority, as evidenced by our long history of repeat business and referrals. We pride ourselves on transparency, reliability, and fostering long-term relationships built on trust. Our leadership team brings decades of industry knowledge, ensuring every project aligns with our standards of excellence. From pre-construction planning to final execution, we approach every task with precision and professionalism. This unwavering dedication has solidified our reputation as a leading construction partner in the region.
Services
Industrial Construction
Food Processing Plants
Healthcare Facilities
Retail Centers
Pre-Construction Planning
Maintenance Services
Transportation Facilities
Commercial Pools
Structural Steel
Automotive Dealerships
Details
- Year established: 1955
Highlights and features
- We have completed 8,000+ projects since 1955 across 52 Ontario cities.
- Our service division handles projects from $500 to $500,000 with dedicated care.
- We maintain a skilled team that consistently meets tight construction deadlines.
- We offer comprehensive pre-construction planning and full project execution.
- Our client-focused approach ensures transparency and personalized attention.
What people say
Highly recommend your services
Fantastic support
Back up and running
Urgent mobilization
Dedicated level of care
Services
Industrial Construction
We specialize in constructing industrial facilities including manufacturing plants and railway infrastructure. Our team delivers durable, code-compliant structures tailored to operational requirements. With decades of experience, we ensure efficient project delivery from groundbreaking to completion.
Food Processing Plants
Our food processing plant construction meets strict hygiene and safety standards. We design and build facilities with proper workflow, sanitation systems, and temperature-controlled environments. Our expertise ensures compliance with industry-specific regulations and operational efficiency.
Healthcare Facilities
We construct healthcare facilities including clinics, dental offices, and veterinary hospitals. Our team understands infection control requirements and patient flow optimization. We create functional spaces that balance medical needs with comfort for staff and visitors.
Pre-Construction Planning
Our pre-construction services include budgeting, scheduling, and design coordination. We identify potential challenges early to prevent delays and cost overruns. This phase ensures all stakeholders align on project scope and deliverables before work begins.
Maintenance Services
We provide maintenance and repair solutions for commercial and industrial properties. Our team handles electrical, plumbing, and structural issues promptly. These services help clients preserve asset value and maintain operational continuity through timely interventions.
People
Peter DeMan
Owner
Peter DeMan leads the company with decades of construction industry experience. He oversees operations and client relations, ensuring projects meet quality standards. His direct involvement guarantees swift decision-making and personalized service for every client.
Questions
What types of construction projects does DeMan handle?
We specialize in industrial, commercial, healthcare, and transportation construction projects ranging from $500,000 to $15 million, including food processing plants and automotive dealerships.
Do you offer emergency construction services?
Yes, we provide after-hours emergency support with direct contact to our owner for urgent facility repairs and operational restoration needs.
What areas do you serve?
We operate throughout Southern Ontario and the Greater Toronto Area, having completed projects in 52 different Ontario cities since our founding in 1955.
Can you handle both large and small projects?
Yes, our team manages projects from $500,000 to $15 million while maintaining the same quality standards for smaller service projects between $500 and $500,000.
How do you ensure project timelines are met?
Our experienced team uses proven scheduling methods and maintains dedicated resources to meet deadlines while preserving quality across all project sizes.
Reviews (3)
Vinay Saini
Oct 02, 2020
Report
Had an awesome experience with this company. They helped us build our dream daycare in Mississauga. We told them what we wanted, they put them in drawing and then built. The owner Peter is an awesome person to deal with. Would recommend this company to everyone....
Camp Canine
Nov 12, 2019
Report
Peter Deman and his team are experienced, honest, caring, and highly competent commercial contractors. The project they completed for me was the first time any contractor met my exacting standards - on time and in budget - that never happened before in 15 projects i have done with other companies. Importantly Peter provided invaluable council on design. I will now only use Deman construction regardless of how long I need to wait for them to be available.
David De Man
Sep 15, 2011
Report
We are your construction destination, for all aspects of construction needs from excavation to trim they do it all, no muss no fuss!
