Business Details
25 Years
experience
Commercial Construction Experts in Mississauga
QUADCON Group Inc. has been delivering professional construction services across the Greater Toronto Area since 2001. Our team brings over 30 years of combined experience in commercial, industrial, and institutional building sectors, specializing in interior renovations and tenant fit-outs. We prioritize cost-effective solutions while maintaining strict adherence to project timelines and client specifications. Our expertise spans demolition, custom rebuilds, and design-build services, supported by a network of reliable sub-trades. We focus on minimizing disruptions for building owners and property managers through meticulous planning and execution.Our leadership team, including President John Prioste and Anna Prioste, combines decades of project management and building science expertise. Health and safety compliance is central to our operations, with certifications in WHMIS and Working at Heights training. We serve both private and public ICI sectors, handling projects from small renovations to large-scale developments. Our reputation for dependability has earned us long-term partnerships with top property management firms. With over 7 million sq.ft. of renovated space, we remain committed to quality craftsmanship and client satisfaction.
Services
Commercial General Contracting
Interior Office Renovations
Tenant Fit-Out Services
Design-Build Projects
Building Maintenance
Details
- Year established: 2001
Highlights and features
- We offer 24+ years of specialized expertise in commercial renovations
- Our team includes certified professionals with building science credentials
- We maintain a network of trusted sub-trades for consistent quality
- We provide 24/7 project coordination for urgent requirements
- Our safety certifications ensure compliance with industry standards
Associations and certifications
- WSIB
- ComplyWorks
- ISNetworld
What people say
Dependable service
Expertise in renovations
Met deadlines
Minimal disruption
Quality craftsmanship
Services
Commercial General Contracting
QUADCON provides comprehensive general contracting services for commercial properties, including project coordination and sub-trade management. Our team handles all phases from tendering to completion, ensuring compliance with building codes and client specifications. With expertise in industrial, commercial, and institutional sectors, we deliver cost-effective solutions tailored to each project's unique requirements.
Interior Office Renovations
Specializing in interior office renovations, we transform spaces ranging from small offices to multi-floor buildings. Our services include demolition, custom rebuilds, and accessibility upgrades. We work closely with property managers to minimize tenant disruption while enhancing functionality and aesthetics. Our portfolio includes medical offices, retail spaces, and corporate headquarters renovations.
Design-Build Services
Our design-build approach streamlines construction projects through single-point accountability. We manage both design and construction phases, improving collaboration between architects, engineers, and contractors. This method reduces project timelines while maintaining budget control, particularly beneficial for complex developments requiring coordinated planning and execution.
Tenant Leasehold Improvements
We specialize in tenant fit-up projects that enhance property value and marketability. Our services include interior finish upgrades, washroom installations, and space reconfigurations. We ensure all improvements meet Ontario Building Code accessibility standards while addressing landlords' specific leasing requirements through efficient, high-quality execution.
Construction Management
Our construction management services cover pre-construction planning through project completion. We coordinate with design professionals and building owners to maintain budget adherence and schedule compliance. This includes material procurement, subcontractor supervision, and quality control measures to ensure successful project delivery across various building sectors.
People
John Prioste
President
With over 30 years of experience, John founded QUADCON in 2001 after working as a senior project manager and facilities planner. He oversees all operations and brings expertise in architectural science and construction management from Ryerson University.
Anna Prioste
Building Science Specialist
Anna contributes 30+ years of building industry expertise, including 15 years with engineering firms. A Ryerson graduate, she specializes in contract documents and building envelope systems, having served as Ontario Building Envelope Council President.
Questions
What commercial building types do you work with?
We handle offices, medical facilities, retail spaces, industrial buildings, laboratories, classrooms, and student residences across the Greater Toronto Area.
How do you minimize business disruption during renovations?
Our team schedules work during off-peak hours and uses phased construction methods to maintain operational continuity for building occupants.
Are you licensed for institutional building projects?
Yes, we have extensive experience with university facilities, government buildings, and other institutional projects requiring specialized compliance.
What safety certifications do your workers hold?
All staff have WHMIS, Working at Heights training, and we participate in third-party safety programs like ComplyWorks and ISNetworld.
Can you handle emergency construction repairs?
We offer 24/7 service for urgent repair needs, with rapid response teams available across Mississauga and the GTA.
Reviews (2)
Shawn Quait
Feb 02, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Quadcon helped us navigate the construction of our new location which involved the building of a commercial kitchen, reception area, and warehouse . The project was delivered on time with great quality work and at a fair price. A dream come true.
Quadcon helped us navigate the construction of our new location which involved the building of a commercial kitchen, reception area, and warehouse . The project was delivered on time with great quality work and at a fair price. A dream come true.
Rick RickRaff Farrell
Jun 26, 2018
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I have worked for over 15 years with John and his team. As a facilities manager I find it important to ensure that any renovations or repairs are taken care of promptly and within budget. Quadcon is responsive and I have NEVER had any overages to what they had quoted. They are truly a one-stop shop for any construction (and other) needs.
