Hearth tile and stone repair in Rosemont North

The 2-inch rule for a hearth extension

Hearth extensions in front of a masonry fireplace need to be at least 2 inches thick under section R1001.9.2. The extension is concrete or masonry on noncombustible supports, with reinforcement for its own weight and whatever loads it sees.

A thin layer of tile set straight onto a subfloor does not meet that description. If a past remodel replaced the original extension with something thinner, the repair becomes a question of rebuilding the extension correctly. We explain that difference in writing before quoting any finish.

Replacing one cracked tile on a sound hearth

A single cracked tile over a solid base is the simplest hearth repair. The tile is cut out without disturbing its neighbors, the old setting bed is scraped back, and a replacement is set flush and grouted to match.

Everything depends on that base being sound. Before promising a one-tile repair, we check the tiles around it and the base under it. If the crack came from movement below, a new tile would only crack again, and we tell you that before you pay for it.

When the whole hearth finish should be replaced

Replacing the whole finish makes sense when many tiles are hollow, the matching tile is gone, or the extension has to grow to meet the size rule anyway. It also gives a chance to rebuild any layers the original job left out.

Full replacement is a bigger scope and a bigger visual change, so we only suggest it with a reason. The estimate lists removal, base preparation, the new finish, the edges and trim, and any flooring that has to be adjusted around the new extension.

• Removal and disposal
• Base preparation or rebuild
• New finish and setting materials
• Edges, trim and floor transitions

Condominium and association hearths

In a condominium or a community with an association, the hearth may belong to a unit that shares walls, chimneys or rules about visible changes.

We suggest checking with the association before choosing a new finish. The repair itself follows the fireplace and the code, and our written scope gives the association a clear description of what will change and what will stay.

• Association rules checked first
• A written scope for approval
• The repair itself follows the fireplace and the code