Solving Complex Window Replacement Challenges

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When Experience and Trust Make the Difference.

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When the St. Mary’s Catholic Church in Alexandria began experiencing water infiltration around its existing clerestory windows, we were brought in to identify the problems and develop a lasting solution.

Working directly with the parish and collaborating with HGA Architects' project design team, we provided design-assist expertise to help evaluate the existing conditions and guide the replacement process. The project involved replacing large, monumental diamond-shaped curtainwall windows and smaller pentagonal windows. These distinctive architectural openings required careful planning, technical expertise, and a thorough understanding of the existing building.

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Our role went beyond supplying and installing replacement windows. We worked closely with the parish to understand its concerns, evaluate options, and develop solutions that preserved the building’s architectural character while addressing the underlying performance issues.


Challenges and Solutions | More Than a Window Replacement


As work progressed, removing the existing window systems revealed additional conditions that were not apparent during the initial evaluation. Some of these issues extended beyond the original window replacement scope and needed to be addressed to achieve a properly weather-tight installation. Rather than simply replacing the windows and moving on, our team helped the parish understand these newly discovered conditions, evaluate the necessary repairs, and coordinate solutions before proceeding with the installation.๏ปฟ

Complex Access. Careful Planning. Experienced Execution.

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The location, height, and unusual geometry of the clerestory windows added another layer of complexity. Removing the existing monumental curtainwall assemblies and installing their replacements required specialized high-reach access equipment and cranes. Careful planning and coordination were essential to safely access the elevated openings, handle the large window assemblies, and complete the work.

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Our team’s experience with complex glazing systems and challenging installation conditions helped us anticipate obstacles, coordinate the necessary equipment, and develop a practical installation approach.

Our design-assist approach combines technical expertise, practical installation knowledge, and decades of experience to identify challenges early and develop effective solutions.


On this project, the parish trusted us to guide a complex window replacement, address unforeseen conditions, and coordinate necessary repairs. Through collaboration and open communication, we helped deliver a solution that met the building's unique requirements. Our reputation is built on earning our clients' trust, solving problems, and delivering dependable results.

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Have a Challenging Window Replacement Project?

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From initial investigation through installation, W. L. Hall Company brings the experience and expertise to find the right solution. Bring us your challenges. We'll help you solve them.

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