Howard L. Zimmerman Architects & Engineers D.P.C. (HLZAE) is a full-service architectural firm that specializes in the interior and exterior restoration, preservation, and alteration of existing buildings and their systems. Our team of architects, engineers, technical and building systems specialists offer professional expertise, particularly in exterior envelope, MEP/FP system upgrades, and forensic investigation. For the past 40 years, HLZAE has developed an excellent reputation as the go-to architecture firm for existing residential, commercial, and institutional properties in the New York City region. We are “an architect’s architect” and take the view that expert restoration is essential not only to environmental sustainability, but also the financial sustainability of each property.