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Serving all of Long Island

We specialize in all types of flat roofs. These include Heat Welded Modified Bitumen, EPDM Rubber Roof Systems, and the latest PVC and TPO Ultraguard Thermo Plastic Membrane Systems. Being factory-trained and approved applicators for John Manville, GAF Rubberoid, Firestone and Genflex, we can offer up to a 25 Year Guarantee on specific systems. Over the last 30 years we have earned the trust of hundreds of satisfied customers and offer a 24 hour emergency roof repair service.

Keep us in mind for all your roofing needs.

Bob Mannara

In the News

June 2015

We have opened a 2nd facility!,

January 2013

We have spent countless hours restoring Long Island businesses in the aftermath of Superstorm Sandy, Read more...

August 2012

Mannara Contracting was publicy congratulated duing a Ribbon cutting ceremony with state and local officials, Read more...

 Roofing Services

The next time you need a Commercial Roofing Service make sure you call 1-800-FLAT ROOF for a free onsite quote. Servicing Heat Welded Roofs - Rubber EPDM - Tin Smith Repairs - Tear Offs - Energy Star Ultra White - Hi R Value Roof Insulation - Reflective Coatings

 24 Hour Emergency Roofing Repair Service

We offer 24 hour emergency roofing repair including insurance claims and storm damage covering Nassau and Suffolk counties. We handle ALL insurance claims.

Detailed Proposals

We provide quick estimates onsite for free. We will check for signs of fatigue including the roof membrane and flashings. We determine the type and condition of your roof deck and examine the insulation (including "R" value).

Tear Offs

We will remove all existing roof membrane and insulation down to the original deck. This service includes carting away debris, removing any non-functional vents, curbs, or any existing roof top units.


We specialize in the latest thermo-plastic, 100% reflective roof systems which qualify for an energy saving rebate.

Service Guarantee

When you choose to have your flat roof repaired by a professional roofing contractor you want the best. Ask about our 20 year no dollar limit warranty.

 Flat Roofing Materials Overview


800 Burman Blvd PO Box 816 Calverton, NY 11933 - USA
2896 Medford Ave Medford, NY 11763 - USA
+1-800-FLATROOF +1-800-352-8766