R W Mulligan

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95 Mill Rd
Riverhead, NY 11901
+1 (631) 727-7555
http://www.rwmulligan.com

R.W. Mulligan is a GAF Certified roofing and siding company based in Riverhead, NY, serving eastern Long Island. With a team of experts, they offer comprehensive warranties on various roof systems, specializing in residential roofing and gutters. Their expertise extends to flat roofing, known for being affordable and low maintenance.

One of their notable services includes cedar roofing, favored for its durability, energy efficiency, and aesthetic appeal. Although requiring regular upkeep, cedar offers a sustainable and versatile roofing option. R.W. Mulligan prides itself on being the only GAF Master Elite and Commercial Roofing Contractor on Long Island, ensuring quality workmanship and lifetime warranty.

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4.57 reviews
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Julia S.
11/12/2025

We admired our neighbor's roof and were in need of replacing ours. When I asked them, they recommended R W Mulligan - reasonable and they great work. We had a consult and an estimate within 24...

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Brian R.
1/11/2019

I highly recommend RW Mulligan. Working with them was a pleasure. We recently moved into a home that had 2 small 2nd floor balcony patios. Turns out both were leaking through roof overhang...

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Jim B.
4/12/2020

Outstanding job and a very reasonable price. I'm glad I cancelled my appointments with company up west.

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Paul S.
11/18/2019

From the first call to request an estimate, to watching the trucks pull out of the driveway at the end of the job, the whole project was executed flawlessly. Even though RW Mulligan came highly...

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Steve G.
8/27/2020

Got to tell you how happy I was dealing with Mulligan. Thorough evaluation and estimate, professional suggestions and fast written estimates. The office staff was responsive to all my questions...

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