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Commercial Building Envelope Services

Ensure the successful and timely completion of your commercial building envelope restoration project with Sullivan Engineering. Whether it’s a FISP- related façade project, roof replacement or historic preservation, we provide you with the technical assistance required to ensure that the appropriate materials are combined with high-quality workmanship to reduce the overall life cycle maintenance costs for your facility by increasing the longevity of the building envelope and the repairs performed.

Our Commercial Building Envelope Expertise

Sullivan Engineering delivers a successful building envelope restoration project by identifying and diagnosing building envelope issues and providing property owners with the technical oversight needed to ensure the job gets done right and on schedule. From FISP repairs and roof engineering to historic building preservation, our engineers and project managers ensure the design incorporates long-term fixes to save you money and headaches down the road.

  • FISP
  • Roofing & Waterproofing
  • Leak Investigations
  • Facade Restoration
  • Building Envelope Surveys
  • Historic Preservation
  • Green Roofing
  • Construction Administration
  • Retail Stores
  • Office Complexes
  • Medical Offices
  • Industrial Parks
  • Parking Garages
  • Types of Commercial Buildings We Serve

    At Sullivan Engineering, we know the unique challenges associated with commercial buildings, including the schedules of the occupants and the need to establish appropriate lines of communication. As a result, we’ve refined our processes to ensure occupants are informed, undisrupted and comfortable.

    How We Work With You

    At the start of a commercial building envelope project, we set realistic scheduling expectations for all involved parties, and strive to ensure all our actions and recommendations work within an agreed-upon budget. Finding the right balance between avoiding business disruptions and allowing the project to progress as needed is dependent upon effective communication and proper planning.

    We establish appropriate lines of communication at the start of every project and adhere to them through the project’s completion. During weekly meetings, we attempt to identify critical events that will require the work schedule to be altered or stopped to allow the business to operate without encumbrance.

    “Sullivan Engineering was knowledgeable, professional and patient. Employees always did an excellent job of explaining the process and clearly had our best interest in mind at all times.” Facility Manager in NYC

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    Why Choose Us?

    Our success on commercial building envelope projects for new and old buildings is attributed to:


    Thorough and detailed reports delivered in a timely manner


    Consistent ability to anticipate issues and needs well in advance


    Effective and efficient communication to keep you informed


    Quality design and workmanship that reduce maintenance costs

    “My experience with Sullivan Engineering was wonderful. They helped us complete our project in a way that made me feel comfortable with information that certainly was not my expertise, and it was most enjoyable to meet with you each week.” Sr. Property Manager in NYC

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