A high-quality roofing-contractor-singapore will provide a robust, written warranty that covers both the materials and their own workmanship. Material warranties are typically backed by the manufacturer (often 20-50 years for high-grade products), but the contractor’s workmanship warranty—often five to ten years—is their guarantee on the quality of the installation itself. This dual l... https://kkroofspecialist.com.sg/roofing-contractor-singapore/