Fully Equipped Material
Testing Laboratory.

Twin Peaks Material Testing Laboratory is fully equipped with state-of-the-art machines and experienced technicians.

Special Inspections

Special and Progress Inspections

TPI is a NYC DOB Class I Special Inspection Agency, (License No. 000317) for all special inspection categories.

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construction materials testing

Construction Materials Testing Services

Twin Peaks, Inc. (TPI) is a multidisciplinary special inspections firm ...

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construction management support

Construction Management Support Services

TPI is proud of our proven track record providing construction support service. TPI is one of the few special inspection ...

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Twin Peaks and their staff are very professional and timely. They are there when I need them. The field professionals are always courteous and knowledgeable. I love the office staff, and yes, even the accounting department. - Ted Yen from Ted Yen Associates

Twin Peaks is thoroughly professional and easy to work with special inspection and Materials Testing company. For the job I am currently working on, we often only give them 1 day of notice and they have always been able to properly staff our job. They are on-time, helpful and professional. We will be using them for over 100 tests on my project and the first 20 have gone great. - Matthew Polhemus from Gramercy Group

This company is professional, reliable, and they perform well. I enjoyed working with them on a recent project. - Adam Hakimian from The Hakimian Organization

Hiring Twin Peaks, Inc. ensures that your construction project will be completed in accordance with the safety and stability standards conforming with the Approved Designs, Specifications, and Building Codes.

Frequently Asked Questions

Future means, a safe and secure living for all of us. When it comes to structural
development, we ensure that through ultimate quality assurance services.

Our Projects

If you would like to get in touch with a Twin Peaks representative, please fill out the form below and click on the submit now button. We are happy to discuss your inspection and testing needs and assist you with finding the right solution.

    Why Twin Peaks

    A trusted name in engineering excellence for the since 1992. Located in the heart of Long Island City, we are a company of one hundred professionals meticulously working to ensure that your construction project is safe, stable, and built in conformance with the approved designs, Building Department rules and regulations.

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    Twin Peaks Incorporated has practical experience providing inspection and testing services on projects of all sizes and various scopes. Our clients include private developers, public agencies, utility companies, mass transit systems, schools and universities, and several private-public partnerships. TPI’s management team and project managers are adept at supporting large one-off projects, multi-year contracts supporting multiple projects via task orders throughout a client’s wide-spread service area, and maintenance projects for public agencies with work proceeding at multiple locations simultaneously.


    Our time-tested management approach emphasizes adhering to our clients’ schedule and keeping in sync with their evolving needs and priorities. Our project management team’s mission is to provide quality assurance services that support our Client’s project goals. TPI’s standard for success on each project is to swiftly and efficiently ensure that the methods and materials utilized on the job are in conformance with project plans, specifications, and building codes.


    Twin Peaks Incorporated will assign a project manager who will create and update a record of the full scope and all required inspections of the project; monitor the progress of inspections and tests; review reports and inspector performance for accuracy and sound methodology; and periodically update the client’s assigned representatives with the status of each inspection item and the overall project.

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