Location: Long Island, NY
Services: Flat Roof Replacement
The owner of a busy strip mall on Long Island reached out to us after receiving multiple complaints from tenants about roof leaks during heavy rainstorms. The issues turned out to be more than just surface-level. The roof was in poor shape, with visible blistering, seam failures, and areas where water was regularly pooling.
Around several rooftop HVAC units, deteriorated flashing was allowing water to intrude directly into tenant spaces. On top of that, the building lacked proper insulation, which was contributing to high energy bills throughout the plaza.
With growing maintenance concerns and increasing costs, the property owner needed a long-term solution that would fix the leaks, improve energy efficiency, and avoid disrupting day-to-day business operations.
We began with a thorough roof inspection, which included a moisture scan and core cuts to assess the condition of the existing roof deck and insulation. Based on our findings, we recommended a complete tear-off and replacement using the GAF EverGuard® 60-mil TPO roofing system, a durable, energy-efficient option designed to handle Long Island’s coastal weather conditions. We also proposed installing 2.5” polyiso insulation board to bring the building up to New York State energy code standards.
To help the client make an informed decision, our consultation included:
The property owner chose Big Apple Renovators because of our strong track record with large commercial flat roofing projects across Long Island. They were impressed with our certifications from GAF, which allowed us to offer extended warranties, as well as our reputation for professionalism and clear communication.
They also appreciated our ability to manage all aspects of the project—from permit handling to scheduling—while coordinating around the needs of their tenants. Our detailed proposal and consultative approach gave them confidence that we could deliver exactly what the property needed, without unnecessary disruption.
We provided a full commercial roof replacement, including:
Because this was an active retail center in a high-traffic area, keeping the site safe and functional for tenants and their customers was a top priority. We divided the project into clearly defined zones and used flagging and barricades to ensure safety throughout the job.
Unexpected deck rot was discovered under several HVAC curbs, but our team responded quickly with on-the-spot carpentry repairs to keep the project moving forward. Daily progress updates were provided to the property manager, which helped maintain transparency and trust every step of the way.
With the new TPO roof in place, the strip mall is now protected from leaks and future water damage. Even better, the highly reflective white membrane is helping to reduce cooling costs, creating measurable energy savings for the owner. This roof is now positioned to last 20+ years with minimal maintenance!
The client shared their appreciation for how smoothly the project ran, telling us:
“Big Apple Renovators was the most organized and responsive roofing contractor we’ve ever worked with.”
They left us a 5-star Google review and have already referred other commercial property owners in Nassau County to our team.
If you're managing a commercial property and dealing with leaks, energy inefficiency, or aging roofing systems, Big Apple Renovators can help. Let us design a solution that works for your building—and your business. Contact us today to schedule a consultation.
