W. L. Hall Company | Window Renovation Project Spotlights

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The W. L. Hall Company has a long history of working with schools, public and private universities, hospitals and condominiums to provide energy-saving aluminum window replacement. This tradition goes back over 76 years and includes some of the best-known buildings in the Upper Midwest.


We utilize a wide variety of window manufacturers to find the proper solutions for each unique building and condition. We work with dozens of consultants and owner’s representatives who choose to partner with us for our quality and dependability. 


We enlisted the services of three separate manufacturers for the following projects:


Holland Hall St. Olaf College (Northfield, MN)

7500 York Cooperative (Edina, MN)

2500 Blaisdell Condominiums (Minneapolis, MN)

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Holland Hall, modeled on the Mont-Saint-Michel monastery in France, stands as one of the most majestic and iconic buildings on St. Olaf College’s campus.


We collaborated on the renovation of Holland Hall at St. Olaf College (Northfield, MN), partnering with Perkins + Will Architects (Minneapolis) and Boldt Construction (Rochester, MN) to install an exceptional window replacement system inspired by the historical design.

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 The primary goals of the project were:


  • Restoring the timeless architectural features of the original design
  • Designing a luminous and spacious interior that offers sweeping vistas of the campus
  • Integrating energy-efficient windows, including custom-made ones, to blend with the historic aesthetic of the building


“The renovation has made Holland Hall a beautiful gateway to the college for those who enter it from the community."


Associate Provost and Professor of Music Dan Dressen

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We collaborated on the 7500 York Cooperative window replacement project with Encompass Engineering (Minnetonka, MN). This endeavor involved replacing 2,584 windows with a premium window replacement system in an occupied building while attempting to minimize resident disruptions.

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This project's challenges included:


  • The unique hurdles posed by continuous occupancy are distinct from those encountered in office buildings or schools.
  • Dealing with numerous non-construction individuals present during the project.
  • Managing the logistical complexities arising from 49 different window types.
  • Addressing space constraints that hindered staging all windows simultaneously on-site.


To tackle these challenges effectively, we devised a comprehensive strategy:


  • Dividing the project into manageable batches based on zones.
  • Implementing a system for ordering, shipping, and delivering windows in manageable lots.
  • Ensuring adequate space for resident parking and activities throughout the project duration.

Effective communication played a vital role:


  • Residents were provided with sufficient notice to prepare for the project.
  • Building staff and security were kept informed to facilitate furniture movement and space clearing.
  • Construction scheduling allowed residents to restore their residences predictably afterwards.
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For the 2500 Blaisdell project, we teamed up with Encompass Engineering and Versacon Construction (Minneapolis). The process began with a thorough forensic window investigation. We communicated our discoveries to Versacon to guarantee that appropriate water mitigation measures and perimeter conditions aligned with the requirements for the new windows.


For products, we opted for Traco windows supplied by Kawneer, complemented by Tubelite Storefront at the main entrance.

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Reach out to W. L Hall Company turn your window renovation design project into reality!

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By Ira Hackner January 15, 2026
Here is a look at a current healthcare project we are actively working on, showcasing our expertise in complex glazing, interior systems, and construction coordination—the CentraCare Plaza Expansion in St. Cloud, Minnesota. We are collaborating closely with RSP Architects (Minneapolis) and McGough Construction (St. Paul) to help bring the CentraCare Plaza Expansion design to life. From the outset, their project teams carefully factored the complex functional and operational requirements of expanded outpatient and specialty care into the overall design, ensuring each building system supports both architectural intent and long-term performance.
By Ira Hackner January 7, 2026
For the executive conference room hallway at Boston Scientific Arden Hills, (Building 5, Floor 3) RSP Architects (Minneapolis) and Cobeck Construction (St. Paul) project teams established clear priorities from the outset: to create a visually striking, polished ceiling experience appropriate for a high-visibility executive corridor, while also providing effective acoustic sound absorption to control noise transfer from the adjacent conference room. We worked closely with the RSP and Cobeck project teams to bring their design goals to life through a refined, high-performing ceiling solution.
By Ira Hackner December 18, 2025
We are pleased to highlight two recently completed ZONA® LYNX telescoping glass wall projects, each tailored to the specific functional demands of its space. Working closely with the architects involved, we helped bring each project's design vision to reality, delivering precision ZONA installations that support flexibility, transparency, and long-term performance across both professional office and high-traffic environments. Both projects feature 3/8" clear laminated glass with a clear anodized finish, providing a consistent balance of durability, safety, and refined aesthetics. Below is a brief overview of each project and the unique advantages the ZONA LYNX system brings to each application.
By Ira Hackner December 11, 2025
We are fortunate to be engaged in a wide range of projects across the Upper Midwest at any given time—each one highlighting the diversity of systems and solutions we provide. Today, we’re pleased to spotlight one of the major glazing projects we are currently involved in: the Boston Scientific – Weaver Lake 4 Expansion. We are proud to be actively progressing on this expansion, delivering advanced glass and glazing solutions for a project that continues to elevate one of Minnesota's most impactful medical device campuses. Collaborating with HGA Architects (Minneapolis) and Ryan Companies Construction (Minneapolis), our team is helping turn their design intent into a fully engineered, constructable glazing system—one that delivers long-term performance, clean aesthetics, and exceptional durability for Boston Scientific.
By Ira Hackner November 21, 2025
Most building professionals know that air leakage is one of the biggest performance failures in commercial buildings. What is less understood is this: Air leakage doesn't move in only one direction. It can move inward (infiltration) or outward (exfiltration) — and each direction carries its own set of energy, comfort, and moisture-control consequences. Even worse, rolling doors have historically been among the weakest points of the building envelope.
By Ira Hackner November 14, 2025
Daylighting, Durability & Performance: Why the Thief River Falls Regional Airport Chose Kalwall
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We truly enjoyed working with HCM Architects (Minneapolis), TKDA Architects (Bloomington), Knutson Construction (Minneapolis), and McGough (St. Paul), who brought four new Xcel Energy service facilities — in Chanhassen, Onalaska (WI), St. Cloud, and St. Paul–Maplewood. We helped bring their design visions to life with Kalwall’s advanced translucent daylighting systems, which elevate energy efficiency, occupant comfort, and thermal performance.
By Ira Hackner October 30, 2025
AIA Minnesota Excellence in Design for Energy Award Lakewood Cemetery's Welcome Center
By Ira Hackner October 20, 2025
2025 Rethos Historic Rehabilitation Award Winner | Landmark Tower Apartments (St. Paul) Conversion
By Ira Hackner October 6, 2025
We were pleased to collaborate with Mohagen Hansen Architecture (Wayzata, MN) and Gardner Builders (Minneapolis) to bring their design vision for Agralite Electric Cooperative’s new 63,000-square-foot headquarters in Benson, MN, to life—featuring the innovative use of Kalwall® daylighting systems in both the office space and the warehouse.