We have offices in Ohio, the Twin Cities area of Minnesota, and the Northeast US.

We work to provide technical support services that will bring order and structure to client’s businesses and projects, providing real value for our client’s investment.

We employ design professionals, technicians, and firm leaders who have worked directly for, and with, some of the client types we serve. Because we work hard to understand our clients’ businesses, we believe it gives us a unique perspective and a deeper understanding of our client’s side of the business.

We provide technical services such as: 

  • technical consulting

  • structural engineering

  • thermal analysis and design

  • system design and systems engineering

  • building envelope information modeling

  • production shop drawings (delegated design drawings)

  • fabrication drawings

  • related services for all forms of exterior cladding systems that comprise the building envelope

We have two divisions: 

Building Envelope ENGINEERING Division: Full-service engineering for exterior cladding systems including glass curtain wall, panel, stone and architectural specialty components.

Building Envelope CONSULTING Division: Expert consulting for building envelope, building façade and cladding systems including schematic design, design development and construction documents, specification development, construction administration, testing and witnessing of testing in laboratory or field, forensic investigation of building envelope failures or defects, expert witness testimony, thermal design and analysis, observation, peer review, blast / impact assessment, remediation and assessment services and other related services.

Our History

  • Formed in 1994 by John Wheaton, P.E., LEED AP, and designer Richard Sprague, we are a professional services company with a staff of designers, consultants, engineers, and LEED AP’s, with technical focus on building facades, building envelopes, and custom and standard curtain wall systems.

  • Steady and strategic growth ensued throughout the years as Wheaton Sprague’s reputation and staff grew to accommodate larger projects.

  • In 2008, in response to increased client demand for expert knowledge of building envelope systems and the desire to be a complete building envelope specialty company, we formed a Building Envelope Consulting Division. The Consulting Division advises architects, owners, and related clients on all matters related to curtain wall and other exterior cladding systems and system design, solving complicated design problems and providing workable solutions.

  • In 2017, we expanded our Consulting Division yet again, adding personnel, and we opened an office in the Northeast Territory of the U.S.

  • 2022 finds us recruiting for key positions within the organization, focused on operational excellence, and continued improvements in all offices. These positions are critical for strategic growth for our company and our people.

  • With a staff of designers, consultants, engineers, and LEED AP’s, the company is poised for continued growth serving clients throughout the U.S. and around the globe.

Company Leadership

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John L. Wheaton

CEO and President
WHEATON SPRAGUE BUILDING ENVELOPE

Wheaton Sprague Building Envelope's President is John Wheaton. He is an award-winning CEO and a passionate advocate for the advancement of the building envelope and curtain wall industry. Check out John's blog where he writes on his experience of 24 years as an owner, his viewpoint on the Architecture/Engineering/Construction industry as a whole, and his philosophies of life and business.

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Richard Sprague

Vice President Operations and DDM
WHEATON SPRAGUE BUILDING ENVELOPE

Richard Sprague is an architectural curtain wall designer who has devoted his career to the design aspects of the building industry, serving both architectural and building envelope firms. He serves as Vice President of Operations and Design, Drafting and Modeling Department at Wheaton Sprague, which he co-founded with John Wheaton in 1994.


Memberships

American Institute of Steel Construction

AISC is a not-for-profit technical institute and trade association established to serve the structural steel design community and construction industry in the U.S. AISC’s mission is to make structural steel the material of choice by being the leader in structural-steel-related technical and market-building activities, including specification and code development, research, education, technical assistance, quality certification, standardization, and market development.


American Society of Civil Engineers

Today's civil engineers use every advantage to meet the demands of their profession. That's why ASCE pioneers new programs, policies, educational activities, and professional resources to help them successfully compete in their business.


National Glass Association

Founded in 1948, the National Glass Association is the largest and most influential trade association serving the architectural glass, and window and door industries. The NGA represents nearly 2,200 member companies, produces the industry's leading events and publications, and provides cutting-edge education and training programs. The NGA's annual events—including GlassBuild America and the Glazing Executives Forum—serve as a centralized meeting place for thousands of professionals.