Protect and Beautify Your Home

Keep the Elements Out • Improve Your Home • GAF Quality Roofing Products

Get a free estimate on your Long Island residential or commercial roofing project today.
Call Tom Jannace Roofing at (631) 751-4734.

Long Island’s Roofing Experts For 30+ Amazing Years

Your roof is your home’s main defense against the elements. Why not maintain it and make it beautiful. Whether you’re in need of a full roof replacement, an upgrade, or just need a leak repaired, Tom Jannace Roofing has you covered.

Tom Jannace Roofing features and installs GAF roofing materials and accessories. Founded in 1886, GAF Materials Corporation is one of the oldest manufacturers of commercial and residential roofing materials in the United States, and its proud tradition of innovation and excellence has made it one of the most respected.

GAF Materials Corporation offers the most comprehensive line of quality roofing systems in the industry. Whether your design calls for a standard 3-tab shingle, an architectural shingle, a conventional built-up roof, a modified bitumen system or a composite system, GAF’s superior products and roofing specifications will meet your needs for a complete single-source installation.

Call for a free roof inspection and estimate for your roof.

Celebrating 30 Years of Custom Satisfaction Serving Long Island, NY

We have roofing liability and roofing workers compensation insurance.
Updated insurance certificates provided with detailed written estimate.
You talk directly with the owner. We never subcontract any of our work.
No dumpsters used on job site.
Roofing is our only business. Most jobs are completed within 1 day.
We invite you to our office to pick and choose references.
We have an A+ rating with the Better Business Bureau.
Specially-trained GAF certified company, license #CE18434.
Preferred contractor with Owens Corning, ID #208339.
Select Shingle Master with CertainTeed.
Free written estimate and complete inspection, no obligation.
Offering a full line of seamless gutters and leaders.
Our office staff is available Monday through Friday from 8 AM – 6 PM and on Saturday from 9 AM – 3 PM.