
We Demand Perfection
Nelson Air Device Corp., or “Nelson Air” was established in 1931 by Nelson Blitz Sr. Nelson Sr. specialized in the development, manufacturing, sales, and installation of a ventilator that filtered outside air for one of the first Indoor Air Quality (IAQ) means at the time. Hence, the “Device” in the Nelson Air name.
Driven by Excellence
A decade later, Nelson Air became a window air conditioner sales and leasing company. Nelson Sr. serviced a vast amount of New York City buildings and Nelson Air continued to thrive. In 1965, Nelson Blitz Jr. joined his father in the business, and in 1967, Nelson took over the business from his father and continued to lease, sell, and install window AC units all over the city.

Continued Improvement
Changing with the times, Nelson converted the business in the late 1960’s to a full-service mechanical company that performed office renovations and fit outs. Nelson wore many hats in these days – closing work, being onsite, and performing accounting duties for the entire company.
For the next 20 years, Nelson grew the business and performed work for most of the major general contractors in the city, but once again he saw a need for continued improvement. In 1989, he opened CW Sheet Metal Inc., a Local 28 Sheet Metal Shop, and began to draft, fabricate and install our own sheet metal.
In 1998 Nelson Air had its first job in health care and started to build a resume of work in hospitals and labs. Post 9/11 Nelson Air became fully vested in this market and remains so today.

Leadership & Guidance
Today Nelson Blitz Jr. and his wife Cathy remain the sole owners of Nelson Air Device Corp. and are an integral part of the business’s planning and development. Leadership and guidance remain the driving force behind our successful business.
Our current leadership takes the values set forth by both Nelson Sr. and Jr. and Nelson Air continues to be a client first quality driven full-service mechanical company that now offers construction management (CM), at risk, and design build divisions to handle any scale or complexity of project.
Executive Management
Experienced
For nine decades we have cultivated our skills, deep knowledge, and expertise. We are well-versed in a broad range of project types.
Qualified
We are a hands-on management team with ownership that demands perfection.
Trusted
We are proud of our long-standing reputation for delivering on-time, on budget, and to complete satisfaction.
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We are devoted to collaborating with our clients.