How to Clean Fireplace Brick?

If you want to clean your fireplace brick and get it looking great again, there are several methods you can use. One of them is to use dish soap and water. Both of these are gentle enough for brick, but if you use a high acidic solution, such as vinegar, you may damage the bricks. We found that a mixture of dish soap and vinegar worked better than the two alone. 

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One way to clean the bricks in a fireplace is by using ammonia. This chemical is very harsh on bricks, and it should not be used on old or brittle bricks. If you use ammonia to clean your fireplace bricks, you should wear gloves and follow the safety instructions carefully. 

Before using ammonia to clean fireplace bricks, you should first wet the bricks. This will prevent the cleaner from seeping through the bricks, especially if you are using an acidic cleaner on porous bricks. Be sure to wet the bricks thoroughly, and then scrub them with a bristled brush. 

Trisodium phosphate 

Trisodium phosphate is an excellent cleaner, but it’s also a highly toxic chemical that can cause a wide variety of health problems. This chemical is banned in many states, and you need to be careful when using it. Wear protective gloves and eyewear and dispose of the product properly. It is not safe to use on whitewashed brick, and it can remove paint and other finishes. 

It works by dissolving the top layer of brick. It can also remove soot and grease from the surface. Use caution, though: it is a highly acidic substance that can damage brick and mortar. Use this chemical only as a last resort. If you don’t have the proper training or experience, you can cause serious injury to yourself or others. 

Dish soap 

There are several methods for cleaning the brick of a fireplace, but all of them involve some level of effort. The method you choose should depend on the condition of the brick and the severity of the stain. For older bricks, the mildest method is to use a mixture of 1/4 cup of clear, grease-cutting dish soap and four cups of water. 

When using this method, you should wear gloves and use a well-ventilated area for safety. Apply the solution on the bricks using a sponge or paintbrush. For stubborn stains, you may have to repeat this process several times. 


OxiClean cleans fireplace brick effectively and without damage to the surrounding area. Unlike chlorine bleach, OxiClean does not contain any harmful chemicals. The cleaner contains oxygen, a substance naturally found in the air. The oxygen in OxiClean breaks down and removes dirt and grime from bricks without damaging them or plants in the surrounding area. 

You can wash the bricks with water outside using a hose or a garden faucet. Make sure the water is high enough to get rid of loose dirt and grime. This will make it easier for the deep-cleaning agent to do its job. The first step is to remove any soot or char from the brickwork. 


Before you use bleach to clean your fireplace brick, make sure that the area is thoroughly wet. This will prevent the use of an acidic product that can cause a streak on the bricks. After you have wet the area, you can scrub it thoroughly using a stiff-bristle brush and bleach. 

To clean bricks, use a 50/50 mixture of laundry bleach and water. This solution will help remove soot and other surface material from the brick. Rinse the bricks afterward.