The most common roof repairs we do across Melbourne's north
After hundreds of jobs across Preston, Reservoir, Coburg, Brunswick, Northcote, Bundoora, Ivanhoe and Eltham, the same repair categories come up again and again β not because these suburbs are unusual, but because Melbourne's climate and the region's housing eras produce predictable failure patterns. Understanding exactly why a problem is happening is the difference between a repair that lasts and one that needs doing again in two years.
- Ridge capping repointing β the single most common repair across the inner north's interwar tile stock. Rigid cement mortar fails in freeze-thaw cycling; flexible polymer mortar is the correct fix.
- Broken or slipped tiles β hail impact, branch falls and foot traffic on aged tiles all cause cracks and slippage. A slipped tile leaves a gap the size of your hand exposed to the weather.
- Tile roof leaks β most leaks originate at the ridge caps, valleys, around chimneys or at penetrations (skylights, vents). The water entry point is rarely directly above the ceiling stain.
- Rust spots on metal roofs β Colorbond and older tin roofs in Craigieburn, Mill Park and South Morang develop surface rust at screw penetrations and panel seams. Treated early, it's a spot repair. Left alone, it's a panel replacement.
- Valley deterioration β lead or aluminium valley flashings crack or lift after decades of thermal expansion. A leaking valley is urgent β it channels water directly to the ceiling.

