SweepMasters Professional Chimney Services - Your Northern Virginia Chimney Sweep Specialists

Firebox Repairs


Firebox Repairs

The firebox is one of the most important parts of the fireplace. It is the part that holds and burns the wood fire. The firebox should be surrounded by the fire brick to withstand the extreme temperatures generated during a fire. Firebrick are stacked and held together with a high temperature fireplace mortar. Quite often these blazing temperatures will disintegrate the fire brick and more often the mortar joints between the fire bricks. Sometimes these mortar joints can become loose and fall out. Sometimes they may just be dry rotted and if touched just turn to powder. In other cases the firebricks develop cracks. All of these conditions are very dangerous and should be corrected. Loose brick and missing mortar joints can be caused by several things. Rain coming down the chimney flue and sitting on top of the smoke shelf is usually the main cause Another reason can simply be poor construction. To correct the problems, we will either repoint the firebox to replace all the bad mortar joints, seal or replace the damaged firebricks, or rebuild the entire firebox. In all cases we will replace and/or repair the damage using a high temperature refractory mortar to ensure the firebox is safe.



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