Hollon Cannon Group LLC

Professional Roofing and Building Envelope Consultants

Hollon+Cannon Group (HCG) is a roofing and building envelope consulting firm specializing in providing architects and building owners with professional and independent guidance on their exterior wall and roofing projects. As roofing and waterproofing consultants HCG provides a wide variety of services designed to help clients from the initial investigation through final construction and beyond. See the Professional Services tab above for a detailed description of available services.


Dedicated to providing the most professional and highest level of roofing and waterproofing consulting services in the industry, our mission is to provide Owners with well informed recommendations and designs that fulfill project requirements and objectives.


The building envelope industry contains thousands of products and many ill-informed or biased sources. In today's design world, a knowledgeable and thorough professional is a must in guiding clients to make both technically an fiscally responsible choices.


Hollon+Cannon Group, llc has no ties to manufacturers or contractors, ensuring recommendations and/or designs provided by our experienced professionals are solely in the best interests of our clients. We vow to be an independent and professional source of building envelope knowledge, always putting our clients' needs first.