Business Details
37 Years
experience
Your Trusted Construction Partner in Dubuque, IA
Portzen Construction has been a trusted name in the construction industry since 1989, delivering high-quality commercial and industrial projects across Iowa and Southwestern Wisconsin. Our ability to self-perform critical servicesincluding concrete work, excavating, carpentry, and plumbingensures clients receive unmatched value and efficiency. With decades of experience managing complex projects like schools, hospitals, and infrastructure, we combine technical expertise with a commitment to on-time, on-budget delivery.As the largest union contractor in Dubuque, we uphold rigorous safety standards and invest in skilled labor to maintain our reputation for excellence. Clients consistently praise our proactive problem-solving, transparency, and dedication to exceeding expectations, making us a preferred partner for both public and private sector projects.
Services
General Contracting
Concrete Services
Excavating
Plumbing & Heating
Carpentry
Details
- Year established: 1989
Highlights and features
- We self-perform 80% of construction work, ensuring quality control and cost efficiency.
- Over 35 years of experience managing complex commercial and industrial projects.
- Largest union contractor in Dubuque, guaranteeing skilled labor and safety compliance.
- Specialize in design-build and construction management for faster project delivery.
- Award-winning expertise in flood mitigation and infrastructure revitalization projects.
What people say
Speed and quality of work
Knowledge and expertise
Beautiful, functional home
No negative impacts to businesses
Invaluable creativity and expertise
Services
General Contracting
Portzen Construction provides comprehensive general contracting services, including design-build and construction management. Our team oversees projects from planning to completion, ensuring adherence to budgets and timelines. Clients benefit from our ability to self-perform key tasks like carpentry and concrete work, reducing costs and delays while maintaining quality control.
Concrete Services
Our concrete services include flatwork, paving, and tilt-up panels for commercial and infrastructure projects. We specialize in durable, code-compliant installations for roads, foundations, and industrial facilities. Clients rely on our expertise in large-scale pours and complex structural elements, supported by in-house equipment and skilled crews.
Excavating
Portzen offers full-site excavation and demolition, including utilities installation and land grading. We handle storm sewers, water mains, and foundation excavation with precision. Our fleet of heavy machinery and experienced operators ensures efficient site preparation for residential, commercial, and municipal projects.
Plumbing & Heating
Through our Dubuque Plumbing & Heating division, we provide commercial plumbing, hydronic heating, and medical gas piping. Our licensed technicians install and maintain complex systems for hospitals, industrial facilities, and new construction. Services include process piping and energy-efficient heating solutions tailored to client needs.
Carpentry
We offer full-spectrum carpentry services, from framing and steel studs to finish work and cabinetry. Our union-certified carpenters ensure precision in residential, commercial, and industrial settings. Clients benefit from faster timelines due to our ability to self-perform this critical trade in-house.
People
Mike Portzen
Chairman of the Board
Founder of Portzen Construction with over 35 years of industry experience, specializing in project management and budget oversight.
JR Portzen
President
Leads daily operations with expertise in construction strategy and client relations, ensuring project success and team leadership.
Jayme Kluesner
Chief Financial Officer
Manages financial planning and accounting, bringing over 15 years of experience in construction finance and compliance.
Adam Portzen
Vice President
Oversees project execution and quality control, leveraging 20+ years in construction management and team development.
Travis Kraus
Plumbing Estimator/Project Manager
Specializes in plumbing system design and cost estimation, ensuring efficient project delivery and client satisfaction.
Questions
What types of construction projects does Portzen specialize in?
We focus on commercial, industrial, and infrastructure projects including schools, hospitals, water treatment facilities, and flood mitigation.
Do you handle both small and large-scale projects?
Yes, we manage projects of all sizes, from minor renovations to multi-million-dollar developments.
Are your services available outside Iowa?
We primarily serve Iowa and Southwestern Wisconsin, with select projects across the Midwest.
How do you ensure project timelines and budgets are met?
Our self-performing crews and in-house expertise allow tighter control over schedules, costs, and quality.
What safety certifications do you hold?
We maintain OSHA compliance and partner with union labor to ensure rigorous safety standards on all job sites.
