Red Sun Builders has been utilizing energy efficient construction practices since 1980. Our mission has been and remains to this day, to provide the client with a professional job, using good quality materials within a specified time frame at a fair market price. We are a small firm which specializes in residential remodeling projects and construction. We take pride in building new or renovating the old or outdated, tranforming it into something functional and attractive. We operate throughout the Northern Catskills and Capital District areas, including: Albany County, Schoharie County, Columbia County and Greene County of New York State.

Our scope of work includes, but is not limited to: new homes, additions, complete renovations, sunrooms, decks, patios, garages, barns, roofing, porch restorations, replacement windows, doors, various types of siding, interior and exterior carpentry & repairs, kitchens, baths, passive solar homes, attached & detached greenhouses, trim work, interior & exterior painting, drywall, and custom built projects.

We use AUTO CAD (Computer Aided Drafting) to assist in the initial design stage to ensure that the project you have considered will work in reality and to provide you with a visualization of the finished project.

We are also an E.P.A. lead-safe certified firm for homeowners with homes built before 1978. Click the link below for more information on being E.P.A. lead-safe.

Please browse our portfolio to see some of our completed projects.

If you have any questions or would like to discuss your ideas, feel free to e-mail Or give us a call 518.966.4271.

Thanks for stopping by!


Ray & Pat Kosorek

Greenville, N.Y.

Established 1980

Fully Insured

References Available


If your home was built before 1978, here's some info you should read.

Click to learn more about the EPA lead-safe requirements.


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