Building Design

Building Design

The cornerstone of our success as an Engineering and Architecture practice has been the design of buildings. Longtin Engineering offers a broad range of architectural, structural and lighting design services related to buildings. Longtin Engineering offers a full range of design services on all types of building projects, including: new buildings, building additions, façade and entry enhancements, interior updates and foundation design and analysis.
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Reno/Retro/Rehab

Retrofit, Renovation and Rehabilitation

Longtin Engineering has extensive experience in the rehabilitation, renovation and structural retrofit of existing buildings and other structures. For many clients, these projects offer a new life to their existing building. We offer a full range of design services related to Retrofit, Rehabilitation and Renovations of various buildings and structures.
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Condition Assessments and Investigations

Longtin Engineering recognizes that the majority of new projects require some degree of initial investigation before subsequent steps can be taken in the decision-making process. We offer a wide range of architectural and engineering services to assist our clients with scope definition, preliminary engineering and project planning phases of their projects. Specific services related to condition assessments & investigations include: preliminary condition assessments, detailed condition assessments, comprehensive site inspections, Preparation of Reports and Studies, Claims Investigation, Code Compliance Reviews, Fire and Accident Damage Assessments, Building Condition Surveys, Space Planning and Building Evaluation
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Site Structures

Longtin Engineering has extensive experience with the design and analysis of specialized site structures. Our firm has worked on a broad variety of projects requiring the construction of site structures for a multitude of client types. Each Site Structure project is unique and offers challenges and opportunities to create a unique solution.
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Industrial Structures

Longtin Engineering has been providing design and consulting services to industrial clients since our inception. Our staff has completed a large variety of projects with services including planning, design, analysis, engineering and construction administration for numerous interior, exterior and site applications.
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Material Handling and Lifting Devices

Longtin Engineering has extensive experience with the design and analysis of custom material handling and Below-the-Hook lifting devices, components and assemblies. In addition to the development of new designs, We have analyzed, load rated, and retrofitted existing components and assemblies. Through existing partnerships, we have the capability to complete design-build projects for these applications as well.
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Construction Engineering

Longtin Engineering is commonly retained by construction managers, general contractors, and specialty contractors to assist with the design of components and systems necessary for the completion of construction as well as the completion of design components delegated to the contractor. We have completed design, analysis and project engineering services across the entire breadth of the construction phase.
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Laboratory Planning

Laboratory Planning

Longtin Engineering has extensive experience with the design and planning of all laboratories. Whether it is wet or dry chemistry, biology, BSL labs from level one to three and physics. Our staff has worked for both professional, university and educational clients. Our team is ready to help you work through your lab planning needs.
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Lighting Design

Lighting Design

Longtin Engineering has provided lighting design services for exterior and interior projects. Our staff has completed a number of projects including design of lighting, photometric review, control specifications, daylight design and installation commissioning.
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Master Planning

Master Planning

Longtin Engineering has significant experience planning project sites of all shapes and sizes. Our staff has executed all types of master planning work including, site planning, building layout, circulation planning, parking lot design, entry and approach design and site layout.
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