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About

Built on craft.
Driven by family.

Founded by Michael Rosembarg and now led alongside his son Bryan — a second-generation family practice delivering luxury renovations across New York.

Decades of experience.
One unwavering standard.

Rosembarg Construction was founded with a clear purpose: to deliver renovations and custom builds that reflect each client's vision — not a contractor's convenience.

With decades of hands-on experience across both generations, we have become a trusted partner for homeowners, architects, and designers across Manhattan, Long Island, and the Hamptons. Every project we take is treated as if our name is on the door.

Bryan and Michael Rosembarg, founders of Rosembarg Construction

Bryan & Michael Rosembarg

Why Choose Rosembarg

02 / WHY US

Licensed & Insured

A fully licensed general contractor across New York, carrying all required coverage so you're protected at every stage.

Local Expertise

Deep knowledge of New York's building codes, trusted suppliers, and the design standards that define Manhattan, Long Island, and the Hamptons.

Family Values

A family business where your project is handled with personal accountability — not handed off to a rotation of unfamiliar crews.

Proven Track Record

A portfolio spanning luxury residences, high-end retail build-outs, and designer-led renovations at the highest level of finish.