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Marble Surface
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P 412-983-1223


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P 412-225-1050


Heather Knuth

 Principal Interior Designer, NCIDQ

Keith Andreyko

Principal Architect, AIA, NCARB


Integrity Design LLC, established in 2003, offers a full range of Architectural and Interior Design services.  We are an innovative design firm with an entrepreneurial spirit.  Our technical expertise, many years of field experience, and creative thinking abilities enable us to be problem solvers with a unique vision for excellent design. Integrity Design is a partnership between Heather J. Knuth and Keith Andreyko. Heather is a successful Interior Designer offering over 40 years of experience in commercial interiors.  Keith, a registered architect, brings over 30 years of experience and a significant history of design honors.  The fusion of Architecture and Interior Design provides our firm with many advantages:

  • Harmonious Design Concepts

  • Complete Design Coordination

  • Creative Thinking

  • Strategic Problem Solving

  • Expert Project Management

  • Diverse Project Experience

  • Technical Expertise

Our design team collaborates with real estate developers, facility managers, healthcare providers, financial institutions, entertainment venues & private business owners to develop unique design solutions tailored to their specific needs. We are committed to make each Client's project successful.

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