Local chimney flue repair in Corner Lake

Why the flue is cleaned before it is judged

A repair product needs a clean, sound surface, and an honest assessment needs a clear view. Soot and creosote hide cracks, fill open joints and keep repair materials from bonding to the tile.

That is why flue repair almost always follows cleaning. If your chimney has been swept recently, tell us when, since it may shorten the preparation. If not, we include cleaning in the sequence and explain what it adds before any repair material goes in. Cleaning is scoped separately so you can see what it adds, and so the repair price is not quietly carrying it.

Using a smoke test to find leaks

When the question is whether a flue leaks, a smoke test can help. The flue is filled with test smoke while the top is covered, and we watch for smoke appearing where it should not, such as another flue, the attic or a room next to the chimney.

A smoke test shows that a leak exists and roughly where. It does not measure how large a crack is or show its exact shape. We use it when the visual evidence leaves the question open, and we explain what the result does and does not prove.

Preparing a flue before resurfacing

Resurfacing products bond to the flue walls, so the walls have to be ready. That usually means cleaning off deposits, removing loose or crumbling material and letting the flue dry, following the product maker's instructions.

Preparation is often the longest part of the job. We describe it in your estimate, so you can see what is done before any product goes in. Skipping it is one of the quickest ways to a repair that cracks or peels. Moisture in the tile can keep some products from bonding, which is why drying time is part of the plan.

Repair or reline, how the choice is made

The decision between a local repair and a new liner rests on a handful of findings. We record each one and show you how they point toward one option or the other.

Where the findings are mixed, we say so and give you both options in writing.

• How many sections are damaged, and where
• Whether the tiles are still in line and supported
• Whether damage is visible end to end or only in part
• What the flue serves now and will serve later
• Whether a listed repair system fits the flue's condition