Flat Roofing

Flat Roofing Solutions for Long Island Properties

Flat roofs require specialized installation to avoid pooling water, drainage problems, and early failure. At Bonac Builders, we install flat roofing systems that last, from re-pitching older roofs to installing new drainage and waterproof membranes, our team delivers solutions tailored to your home or business.

Flat Roof Installation & Repair Services

  • Re-pitching and slope correction

  • Drain installation and repair

Seamless Waterproofing and Protection

  • Liquid membrane application

  • BlueSkin, Ice & Water Shield

  • Integration with siding and gutters

Flat Roofs Built for Long Island Weather

  • Expert handling of snow loads and wind

  • Fully insured, licensed, and local

Flat Roofing Contractors on Long Island

From Hampton Bays to Easthampton, our experienced crews have installed high-quality flat roofing on homes across Suffolk County. We’re known for expert craftsmanship and responsive service.

Flat roof leaking or aging out? Call Bonac Builders for trusted solutions and a free estimate.