Cost of repairing roof leakages Repair Type Typical Cost Range (SGD) What It Covers When You Should Act Minor Leak Repairs $200 – $500 Patch sealant, replace damaged flashing, clear clogged gutters. A small, isolated leak that isn’t dripping continuously. Shingle Replacement $500 – $1,500 Remove damaged shingles, install new ones, clean up debris. Spots where shingles are cracked, missing, or have mold growth. Gutter Repairs $200 – $600 Fix leaks, replace gaskets, unclog or replace sections. Leaks, rusted sections, sagging gutters or blocked drains. Structural Repairs (Sagging Roof) $1,000 –