Business Details
50+ Years
experience
Your Trusted Partner for Construction Solutions
Duomax Developments is a locally-owned general construction contractor serving the Niagara Peninsula and surrounding areas. Established in 1975, we specialize in construction management, design-build, and pre-engineered building services, combining decades of industry expertise with a commitment to client relationships and community impact. Our team prioritizes open communication, project efficiency, and adherence to budgets and timelines, supported by a robust network of trusted subcontractors.With over 40 years of operational history, we bring proven experience in managing complex projects across commercial, institutional, and industrial sectors. Our focus on integrity, loyalty, and environmental responsibility ensures clients receive tailored solutions that meet evolving construction challenges while maintaining the highest standards of quality and accountability.
Services
Competitive Bid Process
Design-Build Services
Construction Management
Pre-Engineered Buildings
Commercial Construction
Institutional Projects
Steel Building Solutions
Project Management
Design Consultation
Building Renovations
Details
- Year established: 1975
Highlights and features
- We have over 40 years of experience in construction management and design-build services.
- Our team maintains a robust network of trusted subcontractors and industry partners.
- We guarantee transparent communication and budget adherence for every project.
- Our process combines expert foresight with client-focused project execution.
- We prioritize environmental responsibility and community-driven construction practices.
What people say
Trusted and valued partner
Exceeds expectations
Cost-effective solutions
Excellent communication
Strong company culture
Services
Competitive Bid Process
Duomaxs Competitive Bid Process ensures transparent, fixed-cost construction solutions for clients. We analyze complete designs and specifications to provide guaranteed pricing and timelines, managing all subcontractors and materials procurement. This approach minimizes risks while delivering projects on schedule and within budget.
Design-Build Services
Our Design-Build Services streamline construction by combining design and execution under one team. Clients benefit from faster project delivery, collaborative problem-solving, and cost efficiency, with Duomax managing architects, engineers, and tradespeople to ensure seamless execution from concept to completion.
Pre-Engineered Buildings
Duomax offers pre-engineered steel buildings for commercial and industrial applications, leveraging partnerships for rapid assembly and cost savings. These structures provide durability, design flexibility, and energy efficiency, tailored to client needs while maintaining high-quality standards and environmental responsibility.
Construction Management
Our Construction Management service supports clients with existing designs, coordinating subcontractors and budgets to ensure project success. We focus on risk mitigation, quality control, and transparent reporting, enabling clients to maintain oversight while benefiting from our industry expertise and local knowledge.
Institutional Projects
Duomax specializes in institutional construction, including schools and community facilities, prioritizing safety, accessibility, and functionality. We collaborate with public stakeholders to meet strict regulatory standards, delivering durable, future-ready spaces that serve communities for generations.
People
John Werkman
Project Manager | Owner
With 41 years at Duomax, John Werkman transitioned from estimator to owner in 2010. His leadership emphasizes integrity and hands-on expertise, driving the companys commitment to excellence in construction management and client relationships.
Ed Poort
Project Manager | Estimator | Owner
Ed Poort joined Duomax as an apprentice carpenter, rising to project manager and co-owner. His technical expertise and focus on cost-effective solutions ensure client satisfaction, blending trade knowledge with strategic project oversight.
Stephan Jaeggi
Project Manager
Stephan Jaeggi brings international construction experience to Duomax, specializing in detail-oriented project management. With over 15 years in site supervision, he ensures precision and quality in every build, leveraging his Swiss-trained carpentry background.
Mike Werkman
Site Superintendent
Mike Werkman leads Duomaxs Pre-Engineered Building division, combining carpentry certification with decades of field experience. His hands-on approach ensures efficient execution of complex projects, maintaining the companys standards for reliability and craftsmanship.
Joel Werkman
Estimator
Joel Werkman contributes to Duomaxs project planning with a focus on accuracy and client needs. His role ensures competitive bids reflect real-world costs, supporting the companys reputation for transparency and budget adherence.
Questions
What types of construction projects does Duomax handle?
Duomax specializes in commercial, institutional, and industrial projects, including new builds, renovations, and pre-engineered steel structures.
Do you work outside the Niagara region?
While based in Niagara, we serve areas including Dunnville, Cayuga, and Caledonia for large-scale construction projects.
How does Duomax ensure projects stay on budget?
We use competitive bidding, detailed pre-build planning, and continuous budget monitoring to maintain financial control throughout projects.
What is the Design-Build process?
Our Design-Build service integrates design and construction under one team, reducing timelines and ensuring cohesive project execution from start to finish.
Are your pre-engineered buildings customizable?
Yes, our steel buildings offer design flexibility for commercial, industrial, and institutional uses while maintaining cost and time efficiency.
