LandMark is a design-build/consulting engineering firm that provides engineering services in Florida, Alabama and Mississippi. For over 20 years, LandMark has completed more than 400 residential and commercial projects annually. Our firm is also involved in both designing and managing several construction projects each year. Our chief engineer, Mark W. Spitznagel, is a dedicated Christian family man who believes that being committed to his word is more important than any profit or gain.

Our services include providing qualified professional and technical personnel performing

  • Civil/Structural Engineering
  • Mechanical, Electrical and Plumbing Engineering (MEP Engineering)
  • Sign Engineering
  • House Design
  • Structural Inspections
  • Expert Witness Services
  • Construction Project Management


In the state of Florida we are licensed to provide engineering and general contracting services to clients who need their project completed by a competent experienced team of professionals. With our understanding of both engineering and construction, you can be sure your project is accomplished with attention to detail and the highest quality workmanship.

Engineering Construction


For years, LandMark has prided itself in offering some of the best design options for high-end custom homes. We provide services in custom residential/house design which includes townhomes, high end custom homes, house additions, and renovations.

Our in-house engineering and CAD teams supply all the architectural details, elevation drawings, piling layouts, beam calculations, and necessary certifications to meet building code and permit requirements. We use multiple 3D architectural drafting and rendering software including AutoCAD and Chief Architect.

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Sign Engineering

Since 1998, LandMark Engineering has offered quality analysis and design for commercial signs to individuals and other sign companies throught the state of Florida, Alabama and Mississippi. Our design portfolio includes more than 5,000 sign projects performed for over 40 sign companies. We perform advanced structural engineering analysis for sign engineering design based on the most up-to-date codes and standards with competitive rates.

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Please feel free to contact us with any questions and to discuss your project. We greatly appreciate the opportunity to provide you with quotes and estimates to help start your project.