Cracked hearths repaired and rebuilt in Lancaster Park

What the hearth extension in front of the opening does

The hearth extension is the noncombustible floor that runs out in front of the fireplace opening and past its sides. Sparks, rolling embers and radiant heat land there instead of on wood flooring, carpet or a rug. The Florida Building Code, Residential, treats it as part of the fireplace, with rules for its material, thickness and size in sections R1001.9 and R1001.10.

Because it protects the floor, a hearth repair is judged by two questions at once. Does the finish hold together, and does the extension still cover the area it has to cover? Our pros answer both before any tile is lifted.

• Catches sparks and rolling embers
• Keeps radiant heat off the floor
• Marks the zone kept clear of rugs and furniture

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.

Cracks in a poured concrete hearth

A poured concrete hearth, bare or stained, can develop shrinkage cracks early on and structural cracks later. The first kind usually stays fine and narrow. The second kind widens, steps or comes with a height change across the crack.

We read the crack before treating it. A narrow, stable crack can be cleaned and filled to match the surface. A crack with movement or a height change sends the job back to the support question, and the estimate shows both options when both are possible.

Brick hearths laid in patterns

Brick hearths are laid in running bond, herringbone, basketweave and other patterns. A repair has to follow the same pattern, joint width and brick size, or the patch reads from across the room.

We record the pattern and the joint profile before lifting anything, then relay the units the same way. If replacement brick is needed, we look for size and color first, then texture, and show you the choice before it goes in.

• Running bond
• Herringbone
• Basketweave
• Stack bond and borders