Quality Construction

3 Rathmore Rd, Marlboro, NY 12542

Cassas Brothers Roofing and Siding brings more than 35 years of experience and expertise to your home projects. We are a fully licensed and insured construction company specializing in roofing, siding, windows, gutters, decks, additions, and more. Quality work and exceptional customer service are just two of our distinguishing traits.

The Most Trusted Name in Roofing, Siding & Construction

Let Cassas Brothers Roofing & Siding give your home or business property some new curb appeal! We offer the efficient, high-quality construction results you need, combined with the fast and friendly service you want for the ultimate installation/renovation experience!


Orange, Dutchess, Sullivan, Rockland, West Chester, Ulster Counties in New York and Bergen and Passaic counties in New Jersey


Finance your project today and let us masterfully handle your construction job, large or small. Call us at (845) 492-9549 with your specifications, and we'll take care of your project with the care and expertise it deserves.





Trust your roofing job to our GAF and Owens Corning certified professionals. We handle all roofing aspects, including installation, replacements, inspection, and maintenance. If your existing roof requires emergency services, contact us first for a job done well.




We can also handle any siding work, ensuring your home or building is protected against the elements while increasing energy efficiency. We use top-quality materials from trusted brands for durability and an attractive finish.



Gutters, Decks and Additions

Don't overlook the gutters on your property. Cassas Brothers can replace and install a complete gutter system in the colors and materials that work best for your home or business.

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What people are saying

I recently replaced my roof which consisted of separate roofs and were very pleased with the quality of workmanship and price. The cleanup afterwards was great. I would strongly recommend this company to anyone needing a new roof replacement. Thank you.


One I put my info in on their website, Mark contacted me within 15 minutes. He gave me an estimate right over the phone, using technology that allows him to see my roof via satellite, and the job was done 4 days later. Talk about FAST! And wow, what a beautiful job. I would highly recommend these guys. Thanks!

Peggi R.

Mark gave us an estimate for our roof. He was very professional, knowledgable, and there were no hidden costs. The job was done a few days later. We were very pleased with the hard working staff. We would not hesitate to recommend Cassas Bros.

Donna & John

Property Improvements: Past & Present

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