Fireplace hearth repair by local pros in South Semoran

When a raised firebox allows a thinner extension

The same code section carries an exception. Where the firebox opening starts 8 inches or more above the top of the hearth extension, a 3/8 inch layer of brick, concrete, stone, tile or other approved noncombustible material is thick enough for the extension.

Many raised fireplaces qualify and many flush ones do not. We measure the height from the extension to the bottom of the opening before recommending a thin replacement finish, because the tile that is fine in front of a raised firebox can fall short in front of one set at floor height.

Hot ashes and the hearth finish

Ash shoveled out of the firebox can hold hot cinders after the fire looks finished. One maker's manual has owners carry ashes out in a lidded metal container that closes tightly, and set it down on the ground or a noncombustible floor, far from anything that can burn.

A bucket on the hearth sits on a noncombustible surface, though its heat can still mark some finishes. If an ash container has left rings or cracks, we include those tiles in the repair and suggest a spot for the bucket that the finish can take.

Edge profiles for households with small children

Square hearth corners can sit near the height of a small child's head, and many families ask for rounded edge pieces or a softer profile when a hearth is repaired.

We can fit bullnose or eased edge pieces where the chosen material allows, and we point out when a change in edge shape affects the height or size of the extension. The protection comes first, and the profile is chosen within it.

• Bullnose edge pieces
• Eased corners
• Extension size kept intact

Why the setting bed matters on a hearth

Under every tile is a bed that holds it, whether a mortar bed, a thin-set layer or an older adhesive. When that bed was thin, patchy or the wrong product, tiles let go even over a good base.

When we reset tiles, we remove the old bed down to a clean, sound surface and set each tile in full contact. Hollow spots under corners are what crack tiles later, and a full bed is what prevents them.

• Old bed removed to sound material
• Full contact under every tile
• Setting product suited to the location
• Curing directions followed