Expertise. Quality. Trusted.

Nelson Air Device Corporation is one of New York’s leading construction management and mechanical contractors.

Established in 1931, we are known for our reliability, quality, and value.

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One of the largest HVAC Healthcare specialists in New York

We bring decades of experience and expertise to all projects with a top-notch staff of project managers and engineers. We have an in-house Local 28 Sheet Metal shop and work with Local 638A and 638B Steamfitters. We consistently deliver the highest quality work on time and on budget.

PROVEN EXPERTISE

We’re staffed with an expert hands-on management team, full time project managers, engineers, a Local 28 Sheet Metal shop, and Local 638A and 638B Steamfitters. For 9 decades we’ve cultivated our skills, deep knowledge, and expertise. We are well versed in design, new construction, renovations, retrofits, and maintenance with existing equipment for a broad range of project types.

IMPECCABLE QUALITY

We demand perfection and leave no stone unturned when collaborating with our clients on design, new construction, renovations, retrofits, and maintenance to deliver the highest quality end product.

TRUSTED & RELIABLE

We’re proud of our long-standing reputation for being devoted collaborators to our clients and delivering the highest quality product, on-time, on budget, and to complete satisfaction. Our offices are strategically located in the middle of the 5 boroughs and Long Island.

SAFETY FIRST (COVID-19)

Our experienced project managers approach every project with our Safety First best practices. Safety is an important issue to us. We’re helping prevent the spread of COVID-19 directly through our work at healthcare facilities as well as our Safety First approach to every project.

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CW SHEET METAL

Our in-house Local 28 Sheet Metal shop has been a fabrication leader in the heart of New York City for more than 30 years .

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OUR PORTFOLIO

We are proud of our history of excellence and impact having worked on numerous high profile and prestigious projects health care facilities, healthcare, educational institutions, museums and government spaces in New York.

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Driven By Excellence

Our Story

What started in 1931 as a family-owned window air conditioning contractor has grown into one of New York’s leading mechanical contractors for its reputation, reliability, high-quality work, and the overall value it brings to clients.

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