20 years • Licensed & Insured • Serving NYC, Long Island & Westchester
📞 Call 917-900-0555 Free Estimate →A waterproofing system can extend a roof's life by 7–15 years for a fraction of the cost of replacement. The catch: it only works if the underlying roof is sound. We do free moisture surveys to tell you honestly whether coating makes sense for your building — and we apply only the systems we have seen perform in this climate.
GAF Topcoat silicone roof coating. Henry 587 elastomeric. Karnak 220AF aluminum coating. Sherwin-Williams ConFlex XL elastomeric. Reinforcing polyester fabric for seams.
$3–$6 per square foot for silicone systems. $2–$4 per square foot for elastomeric. Compare to $7–$14/sq ft for full flat roof replacement.
Silicone: 10–15 years with manufacturer warranty. Elastomeric (acrylic): 7–10 years. Aluminum: 5–7 years.
Sometimes — depends on condition. We will core-sample first. If the underlying felts are dry and the gravel can be properly prepared, yes. If it is saturated, no — coating it would just trap the moisture.
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📞 917-900-0555 Request Quote Online →Free estimates. 24/7 emergency service. 20 years of trusted work in NYC Metro.
📞 Call 917-900-0555