7 Warning Signs of a Roof Leak

Roof leaks rarely start as a dramatic drip — they show up as small clues long before water hits your floor. Spotting them early is the difference between a quick, cheap repair and a soaked ceiling. Here are the 7 signs GTA homeowners should watch for.

The 7 signs to watch for

• 1. Ceiling or wall stains. Yellow-brown rings or patches — especially after rain — are the classic sign water is getting in.
• 2. Dripping or active water. Obvious, but never ignore it: even a slow drip means the roof's protective layers have failed.
• 3. A damp or musty attic. Check your attic after heavy rain for wet insulation, water marks on the wood, or a musty smell.
• 4. Missing, curling or cracked shingles. Look up after a storm — lifted or missing shingles are open doors for water.
• 5. Damaged flashing. The metal around chimneys, skylights and vents is where most leaks actually start.
• 6. Bubbling paint or peeling wallpaper. Trapped moisture behind the surface makes paint blister and drywall soften.
• 7. Mold, mildew or a spike in your energy bill. Persistent moisture breeds mold and ruins insulation, which makes your home harder to heat and cool.

What to do if you spot one

Don't wait for the stain to spread. A leak only gets bigger — and more expensive — the longer it sits, because it keeps soaking the wood, insulation and drywall underneath. The cheapest possible outcome is to have it checked the moment you notice a sign.

The easiest first step: take a photo of the stain (and the roof, if you can safely see it from the ground) and send it to us on WhatsApp. We'll tell you what's likely going on and whether it's urgent — free, no pressure.