Chimney Leak Repair and Custom Flashing Installation in Toronto

Stopping a Chimney Leak the Right Way

Chimney leak? No problem. At The Roof Whisperer Toronto, we fix leaks with care and craftsmanship. Our latest project shows the difference proper detail makes—just look at the clean lines in the new metal flashing!

This chimney will stay leak-free for years, unless another contractor damages it during a future roof replacement.

Step 1: Removing the Old Flashing

First, we removed the old, poorly installed flashing. This gave us a solid surface to rebuild the waterproofing system from scratch.

Step 2: Adding Ventilation

Next, we improved roof airflow by installing ridge vent Shingle Vent II on both sides of the chimney. With better ventilation, the roof stays drier and lasts longer.

Step 3: Waterproofing the Chimney Base

After that, we installed a waterproofing membrane around the chimney base and extended it up the walls. We sealed every joint between the bricks and the membrane for extra protection.

Even before we added the new flashing, the membrane alone kept the chimney dry for weeks, holding strong through heavy rain.

Step 4: Installing Custom Metal Flashing

Finally, we installed custom-bent pre-painted steel flashing (.26 gauge). We matched the shingles in color and brand where needed. This ensured the finished look was seamless and professional.

The Result

Now the chimney is sealed, ventilated, and protected with durable custom flashing. At The Roof Whisperer, we don’t take shortcuts—we combine roofing knowledge with skilled workmanship to deliver repairs that last.